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• 1. [Article] Proceedings of the Wild Trout - Catchable Trout Symposium

  Abstract -- None

  Citation × Citation Citation Abstract Copy Title: Proceedings of the Wild Trout - Catchable Trout Symposium Abstract -- None Title: Proceedings of the Wild Trout - Catchable Trout Symposium Abstract -- None Close

• 2. [Article] NF - Effect of Bull Trout and Brook Trout Interactions on Foraging Habitat, Feeding Behavior, and Growth

  Abstract -- Observations of free-ranging sympatric bull trout Salvelinus confluentus and nonnative brook trout S. fontinalis in two eastern Oregon headwater streams provided little evidence of habitat ...

  Citation × Citation Citation Abstract Copy Title: NF - Effect of Bull Trout and Brook Trout Interactions on Foraging Habitat, Feeding Behavior, and Growth Abstract -- Observations of free-ranging sympatric bull trout Salvelinus confluentus and nonnative brook trout S. fontinalis in two eastern Oregon headwater streams provided little evidence of habitat partitioning. Both species held focal feeding points in similar microhabitats and fed primarily from the water column rather than from the surface or benthos. In an instream experiment, 20 enclosures were assigned one of three treatments: two bull trout, four bull trout, or a mix of two bull trout and two brook trout. In the enclosures, macroinvertebrate drift was restricted and trout densities were elevated, creating an environment of reduced food and habitat resources. Under these conditions, there was no indication of a niche shift by bull trout; feeding behavior and habitat use by bull trout did not differ depending on the presence or absence of brook trout. Brook trout in the mixed-species treatment were the most aggressive, maintained dominance in 75% of the enclosures, and exhibited significantly higher growth than sympatric bull trout. However, the effects of intra-and interspecific interactions on bull trout growth were equivalent. Given the absence of resource partitioning and a niche shift by bull trout in the presence of brook trout (despite obvious interference interactions), we suggest that the displacement of bull trout by brook trout is likely when resources are scarce. Title: NF - Effect of Bull Trout and Brook Trout Interactions on Foraging Habitat, Feeding Behavior, and Growth Abstract -- Observations of free-ranging sympatric bull trout Salvelinus confluentus and nonnative brook trout S. fontinalis in two eastern Oregon headwater streams provided little evidence of habitat partitioning. Both species held focal feeding points in similar microhabitats and fed primarily from the water column rather than from the surface or benthos. In an instream experiment, 20 enclosures were assigned one of three treatments: two bull trout, four bull trout, or a mix of two bull trout and two brook trout. In the enclosures, macroinvertebrate drift was restricted and trout densities were elevated, creating an environment of reduced food and habitat resources. Under these conditions, there was no indication of a niche shift by bull trout; feeding behavior and habitat use by bull trout did not differ depending on the presence or absence of brook trout. Brook trout in the mixed-species treatment were the most aggressive, maintained dominance in 75% of the enclosures, and exhibited significantly higher growth than sympatric bull trout. However, the effects of intra-and interspecific interactions on bull trout growth were equivalent. Given the absence of resource partitioning and a niche shift by bull trout in the presence of brook trout (despite obvious interference interactions), we suggest that the displacement of bull trout by brook trout is likely when resources are scarce. Close

• 3. [Article] Threemile Creek Bull Trout Protection Final Report 1998

  Abstract -- Brook Trout were removed from Threemile Creek by electrofishing and night-snorkel spear-fishing. Electrofishing removal was conducted on 11 reaches and a total of 45 passes were completed. ...

  Citation × Citation Citation Abstract Copy Title: Threemile Creek Bull Trout Protection Final Report 1998 Abstract -- Brook Trout were removed from Threemile Creek by electrofishing and night-snorkel spear-fishing. Electrofishing removal was conducted on 11 reaches and a total of 45 passes were completed. Fifty brook trout were removed. Night-snorkeling was conducted in the five reach, intergrade zone where both bull and brook trout were found. Two comprehenzive passes were completed in the first three reaches, and three passes were completed in the last two reaches. A total of 10 brook trout and 8 brook/bull trout hybrids were removed. Additionally 39 brook trout were removed from a fire pond above Threemile Creek. Mollusk and amphibian surveys were also conducted; and temperature was collected in the Threemile Creek Project Area. Title: Threemile Creek Bull Trout Protection Final Report 1998 Abstract -- Brook Trout were removed from Threemile Creek by electrofishing and night-snorkel spear-fishing. Electrofishing removal was conducted on 11 reaches and a total of 45 passes were completed. Fifty brook trout were removed. Night-snorkeling was conducted in the five reach, intergrade zone where both bull and brook trout were found. Two comprehenzive passes were completed in the first three reaches, and three passes were completed in the last two reaches. A total of 10 brook trout and 8 brook/bull trout hybrids were removed. Additionally 39 brook trout were removed from a fire pond above Threemile Creek. Mollusk and amphibian surveys were also conducted; and temperature was collected in the Threemile Creek Project Area. Close

• 4. [Article] Threemile Creek Bull Trout Protection, 1997 Final Report (OWEB #97-112-007)

  Abstract -- Brook trout removal activities were conducted on Threemile Creek beginning in late June, and ending in late September 1997. Removal efforts consisted of electrofishing in the brook trout zone ...

  Citation × Citation Citation Abstract Copy Title: Threemile Creek Bull Trout Protection, 1997 Final Report (OWEB #97-112-007) Abstract -- Brook trout removal activities were conducted on Threemile Creek beginning in late June, and ending in late September 1997. Removal efforts consisted of electrofishing in the brook trout zone and night snorkel spearing in the bull trout intergrade zone (both brook trout and bull trout present). A total of 121 brook trout and one hybrid were removed by electrofishing. Of the 121 brook trout removed, 92 were greater than 90 mm in length. During night snorkel spearing 10 brook trout and 8 hybrids were removed and a total of 54 bull trout were observed. Macroinvertebrate and amphibian surveys were conducted in early September, and temparature was monitored throughout the project area. Experimental trapping was conducted, but no fish were collected during any trapping effort. Title: Threemile Creek Bull Trout Protection, 1997 Final Report (OWEB #97-112-007) Abstract -- Brook trout removal activities were conducted on Threemile Creek beginning in late June, and ending in late September 1997. Removal efforts consisted of electrofishing in the brook trout zone and night snorkel spearing in the bull trout intergrade zone (both brook trout and bull trout present). A total of 121 brook trout and one hybrid were removed by electrofishing. Of the 121 brook trout removed, 92 were greater than 90 mm in length. During night snorkel spearing 10 brook trout and 8 hybrids were removed and a total of 54 bull trout were observed. Macroinvertebrate and amphibian surveys were conducted in early September, and temparature was monitored throughout the project area. Experimental trapping was conducted, but no fish were collected during any trapping effort. Close

• 5. [Article] Oregon's Trout Plan: A Plan for the Management of Oregon's Trout 1987

  Abstract -- The Statewide Trout Management Plan is part of the Oregon Department of Fish and Wildlife's (ODFW) planning program to provide a comprehensive, systematic, long-term approach to the management ...

  Citation × Citation Citation Abstract Copy Title: Oregon's Trout Plan: A Plan for the Management of Oregon's Trout 1987 Abstract -- The Statewide Trout Management Plan is part of the Oregon Department of Fish and Wildlife's (ODFW) planning program to provide a comprehensive, systematic, long-term approach to the management of Oregon's fish resources. The Plan contains specific goals, objectives, strategies, and guidelines for the statewide management of trout, which are based on state laws, as well as general goals and policies adopted by the Oregon Fish and Wildlife Commission, (hereafter referred to as the Commission). In turn, the Plan provides direction for basin, subbasin, and mini plans developed for individual rivers and water bodies. The relationship of the Statewide Trout Management Plan to other ODFW plans is further discussed in Appendix A. This Statewide Management Plan will direct future trout management and will be reviewed in 6 years. The plan contains brief descriptions of Oregon's trout waters, species, anglers, and economic consequences. The importance of habitat and the use of angling regulations are also discussed. The plan covers all species of native and introduced resident trout and Pacific salmon that are managed in the resident trout program (Atlantic salmon, kokanee, coho salmon, and Chinook salmon) and the anadromous form (searun) of cutthroat trout. Appendix B contains a complete list of fish treated as trout in the plan. Title: Oregon's Trout Plan: A Plan for the Management of Oregon's Trout 1987 Abstract -- The Statewide Trout Management Plan is part of the Oregon Department of Fish and Wildlife's (ODFW) planning program to provide a comprehensive, systematic, long-term approach to the management of Oregon's fish resources. The Plan contains specific goals, objectives, strategies, and guidelines for the statewide management of trout, which are based on state laws, as well as general goals and policies adopted by the Oregon Fish and Wildlife Commission, (hereafter referred to as the Commission). In turn, the Plan provides direction for basin, subbasin, and mini plans developed for individual rivers and water bodies. The relationship of the Statewide Trout Management Plan to other ODFW plans is further discussed in Appendix A. This Statewide Management Plan will direct future trout management and will be reviewed in 6 years. The plan contains brief descriptions of Oregon's trout waters, species, anglers, and economic consequences. The importance of habitat and the use of angling regulations are also discussed. The plan covers all species of native and introduced resident trout and Pacific salmon that are managed in the resident trout program (Atlantic salmon, kokanee, coho salmon, and Chinook salmon) and the anadromous form (searun) of cutthroat trout. Appendix B contains a complete list of fish treated as trout in the plan. Close

• 6. [Article] Lake Billy Chinook Creel Survey, Boat and Bank Anglers - 2009 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates

  Abstract -- Lake Billy Chinook Creel Survey, Boat and Bank Anglers - March 1-October 31, 2009

  Citation × Citation Citation Abstract Copy Title: Lake Billy Chinook Creel Survey, Boat and Bank Anglers - 2009 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Lake Billy Chinook Creel Survey, Boat and Bank Anglers - March 1-October 31, 2009 Title: Lake Billy Chinook Creel Survey, Boat and Bank Anglers - 2009 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Lake Billy Chinook Creel Survey, Boat and Bank Anglers - March 1-October 31, 2009 Close

• 7. [Article] Lake Billy Chinook Creel Survey, Boat and Bank Anglers - 2010 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates

  Abstract -- Lake Billy Chinook Creel Survey, Boat and Bank Anglers - March 1-October 31, 2010

  Citation × Citation Citation Abstract Copy Title: Lake Billy Chinook Creel Survey, Boat and Bank Anglers - 2010 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Lake Billy Chinook Creel Survey, Boat and Bank Anglers - March 1-October 31, 2010 Title: Lake Billy Chinook Creel Survey, Boat and Bank Anglers - 2010 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Lake Billy Chinook Creel Survey, Boat and Bank Anglers - March 1-October 31, 2010 Close

• 8. [Article] Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau and Blue Mountain Provinces, 2005 Annual Report

  Abstract -- Methods of estimating the abundance of adult bull trout, migration and temperature patterns of adult bull trout in the Lostine River, seasonal movements of subadult fluvial bull trout in Mill ...

  Citation × Citation Citation Abstract Copy Title: Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau and Blue Mountain Provinces, 2005 Annual Report Abstract -- Methods of estimating the abundance of adult bull trout, migration and temperature patterns of adult bull trout in the Lostine River, seasonal movements of subadult fluvial bull trout in Mill Creek, spatial distribution of bull trout Redds in the John Day basin and evaluation of various statistical sampling designs, analysis and synthesis of project results, life history of Mill Creek fluvial bull trout using PIT tags and cohort analysis. Title: Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau and Blue Mountain Provinces, 2005 Annual Report Abstract -- Methods of estimating the abundance of adult bull trout, migration and temperature patterns of adult bull trout in the Lostine River, seasonal movements of subadult fluvial bull trout in Mill Creek, spatial distribution of bull trout Redds in the John Day basin and evaluation of various statistical sampling designs, analysis and synthesis of project results, life history of Mill Creek fluvial bull trout using PIT tags and cohort analysis. Close

• 9. [Article] MWBTRP - Middle Fork Willamette Basin Bull Trout Rehabilitation and Monitoring Project, Annual Progress Report 2005

  Abstract -- Bull trout in the Middle Fork Willamette Basin once moved uninhibited back and forth from spawning and rearing habitats near Diamond Peak to foraging and overwintering habitats lower in the ...

  Citation × Citation Citation Abstract Copy Title: MWBTRP - Middle Fork Willamette Basin Bull Trout Rehabilitation and Monitoring Project, Annual Progress Report 2005 Abstract -- Bull trout in the Middle Fork Willamette Basin once moved uninhibited back and forth from spawning and rearing habitats near Diamond Peak to foraging and overwintering habitats lower in the basin. Construction of Dexter, Lookout Point and Hills Creek dams in the 1950s and 1960s without fish passage fragmented the habitat and limited the range of the population to above Hills Creek Dam. This population declined and the last confirmed bull trout sighting above Hills Creek dam was a photograph taken by an angler in 1990. Buchanan et al. (1997) described bull trout in the Middle Fork Willamette River as “probably extinct” after extensive surveys from 1993 through 1997 failed to observe any bull trout. In 1997 the US Forest Service and the Oregon Department of Fish and Wildlife began a program to reestablish bull trout in the Middle Fork Willamette. More than 10,000 bull trout fry have been transferred from the relatively healthy McKenzie population to the Middle Fork Willamette River. Adult bull trout are once again present in the Middle Fork Willamette, although natural reproduction has not been documented. Title: MWBTRP - Middle Fork Willamette Basin Bull Trout Rehabilitation and Monitoring Project, Annual Progress Report 2005 Abstract -- Bull trout in the Middle Fork Willamette Basin once moved uninhibited back and forth from spawning and rearing habitats near Diamond Peak to foraging and overwintering habitats lower in the basin. Construction of Dexter, Lookout Point and Hills Creek dams in the 1950s and 1960s without fish passage fragmented the habitat and limited the range of the population to above Hills Creek Dam. This population declined and the last confirmed bull trout sighting above Hills Creek dam was a photograph taken by an angler in 1990. Buchanan et al. (1997) described bull trout in the Middle Fork Willamette River as “probably extinct” after extensive surveys from 1993 through 1997 failed to observe any bull trout. In 1997 the US Forest Service and the Oregon Department of Fish and Wildlife began a program to reestablish bull trout in the Middle Fork Willamette. More than 10,000 bull trout fry have been transferred from the relatively healthy McKenzie population to the Middle Fork Willamette River. Adult bull trout are once again present in the Middle Fork Willamette, although natural reproduction has not been documented. Close

• 10. [Article] 2012 Metolius Basin bull trout redd counts

  Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance ...

  Citation × Citation Citation Abstract Copy Title: 2012 Metolius Basin bull trout redd counts Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance management of bull trout ended and protection of bull trout began in 1983 with mandatory catch and release regulations throughout the Metolius River basin. In 1986, the Department initiated annual redd counts for bull trout throughout the basin to document the species status. Redd surveys showed low spawning numbers, and the Department responded by closing all tributaries downstream of Lake Creek to fishing in 1994. A Threatened listing of Columbia River bull trout under the Endangered Species Act in 1998 followed the fishery closure (Fies et al. 1996 and Lohr et al. ####). Bull trout redd counts continue in the basin in accordance with the goals of the Native Fish Conservation Policy. Title: 2012 Metolius Basin bull trout redd counts Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance management of bull trout ended and protection of bull trout began in 1983 with mandatory catch and release regulations throughout the Metolius River basin. In 1986, the Department initiated annual redd counts for bull trout throughout the basin to document the species status. Redd surveys showed low spawning numbers, and the Department responded by closing all tributaries downstream of Lake Creek to fishing in 1994. A Threatened listing of Columbia River bull trout under the Endangered Species Act in 1998 followed the fishery closure (Fies et al. 1996 and Lohr et al. ####). Bull trout redd counts continue in the basin in accordance with the goals of the Native Fish Conservation Policy. Close

• 11. [Article] 2011 Metolius River subbasin bull trout redd counts

  Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance ...

  Citation × Citation Citation Abstract Copy Title: 2011 Metolius River subbasin bull trout redd counts Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance management of bull trout ended and protection of bull trout began in 1983 with mandatory catch and release regulations throughout the Metolius River basin. In 1986, the Department initiated annual redd counts for bull trout throughout the basin to document the species status. Redd surveys showed low spawning numbers, and the Department responded by closing all tributaries downstream of Lake Creek to fishing in 1994. A Threatened listing of Columbia River bull trout under the Endangered Species Act in 1998 followed the fishery closure (Fies et al. 1996 and Lohr et al. ####). Bull trout redd counts continue in the basin in accordance with the goals of the Native Fish Conservation Policy. Title: 2011 Metolius River subbasin bull trout redd counts Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance management of bull trout ended and protection of bull trout began in 1983 with mandatory catch and release regulations throughout the Metolius River basin. In 1986, the Department initiated annual redd counts for bull trout throughout the basin to document the species status. Redd surveys showed low spawning numbers, and the Department responded by closing all tributaries downstream of Lake Creek to fishing in 1994. A Threatened listing of Columbia River bull trout under the Endangered Species Act in 1998 followed the fishery closure (Fies et al. 1996 and Lohr et al. ####). Bull trout redd counts continue in the basin in accordance with the goals of the Native Fish Conservation Policy. Close

• 12. [Article] 2010 Metolius Basin bull trout redds

  Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance ...

  Citation × Citation Citation Abstract Copy Title: 2010 Metolius Basin bull trout redds Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance management of bull trout ended and protection of bull trout began in 1983 with mandatory catch and release regulations throughout the Metolius River basin. In 1986, the Department initiated annual redd counts for bull trout throughout the basin to document the species status. Redd surveys showed low spawning numbers, and the Department responded by closing all tributaries downstream of Lake Creek to fishing in 1994. A Threatened listing of Columbia River bull trout under the Endangered Species Act in 1998 followed the fishery closure (Fies et al. 1996 and Lohr et al. ####). Bull trout redd counts continue in the basin in accordance with the goals of the Native Fish Conservation Policy. Title: 2010 Metolius Basin bull trout redds Abstract -- Bull trout are indigenous to the Metolius River basin; however, they were managed as a nuisance species due to their interactions with anadromous sportfish for several decades. In 1960, nuisance management of bull trout ended and protection of bull trout began in 1983 with mandatory catch and release regulations throughout the Metolius River basin. In 1986, the Department initiated annual redd counts for bull trout throughout the basin to document the species status. Redd surveys showed low spawning numbers, and the Department responded by closing all tributaries downstream of Lake Creek to fishing in 1994. A Threatened listing of Columbia River bull trout under the Endangered Species Act in 1998 followed the fishery closure (Fies et al. 1996 and Lohr et al. ####). Bull trout redd counts continue in the basin in accordance with the goals of the Native Fish Conservation Policy. Close

• 13. [Article] Florence area stocked trout evaluation, 1993

  Abstract -- This study evaluates the hatchery rainbow trout program for seventeen dunal lakes in the Siuslaw Fish District near Florence, Oregon (Figure 1). The contribution of stocking rainbow trout in ...

  Citation × Citation Citation Abstract Copy Title: Florence area stocked trout evaluation, 1993 Abstract -- This study evaluates the hatchery rainbow trout program for seventeen dunal lakes in the Siuslaw Fish District near Florence, Oregon (Figure 1). The contribution of stocking rainbow trout in coastal lakes of Oregon has not been systematically evaluated to determine the amount of recreation provided or the catch rate of the hatchery product. Estimates of the angler catch and effort from this study will be used to meet the following three objectives: 1: Describe the current fishery at 17 mid-coast Oregon dunal lakes arid make recommendations to improve the program to increase angler satisfaction. 2: determine the utilization rate and overall contribution of hatchery trout compared to the Oregon Trout Plan statewide goal of a minimum 40¼ catch of hatchery fish. 3: Determine the hatchery trout contribution to the fisheries compared to native trout in lakes with both present. Title: Florence area stocked trout evaluation, 1993 Abstract -- This study evaluates the hatchery rainbow trout program for seventeen dunal lakes in the Siuslaw Fish District near Florence, Oregon (Figure 1). The contribution of stocking rainbow trout in coastal lakes of Oregon has not been systematically evaluated to determine the amount of recreation provided or the catch rate of the hatchery product. Estimates of the angler catch and effort from this study will be used to meet the following three objectives: 1: Describe the current fishery at 17 mid-coast Oregon dunal lakes arid make recommendations to improve the program to increase angler satisfaction. 2: determine the utilization rate and overall contribution of hatchery trout compared to the Oregon Trout Plan statewide goal of a minimum 40¼ catch of hatchery fish. 3: Determine the hatchery trout contribution to the fisheries compared to native trout in lakes with both present. Close

• 14. [Article] Timing and Location of Spawning by Bull Trout and Kokanee in the Odell Lake Watershed and Heising Spring of the Metolius River Watershed, 2003-04.

  Abstract -- Although the present size of the bull trout population within the Odell Lake Recovery Unit is unknown, it appears to be quite small. Spawning by bull trout of the Odell Lake Recovery Unit occurs ...

  Citation × Citation Citation Abstract Copy Title: Timing and Location of Spawning by Bull Trout and Kokanee in the Odell Lake Watershed and Heising Spring of the Metolius River Watershed, 2003-04. Abstract -- Although the present size of the bull trout population within the Odell Lake Recovery Unit is unknown, it appears to be quite small. Spawning by bull trout of the Odell Lake Recovery Unit occurs only in the lower 0.8 km of Trapper Creek, below a falls presumed to be a barrier. Numbers of redds observed in Trapper Creek from 1996 through 2002 have ranged from one to 24. In addition to genetic effects caused by small population size, primary threats to the sustainability of these bull trout include limited spawning and rearing habitat in all streams, hybridization with brook trout in upper Trapper Creek, competition from other fish species, particularly lake trout in Odell Lake, and superimposition of kokanee salmon (O. nerka) redds on bull trout redds. The latter threat may be particularly detrimental because of the large number of kokanee that spawn in lower Trapper Creek. To address concerns of bull trout redd superimposition by bull trout, we designed studies to: 1) Assess the impacts to bull trout reproduction caused by kokanee that spawn at the same location, and 2) Develop acceptable methods to separate bull trout and kokanee that spawn in Trapper Creek, Odell Lake. The first objective will address the concerns that kokanee redds superimposed on bull trout redds will reduce the number of bull trout progeny. During the spawning season, we will cap several undisturbed bull trout redds and an equal number of redds superimposed with kokanee salmon redds. Emergent fry will be captured, identified, and enumerated; statistical comparisons of fry abundance will be made between both groups of redds. To adjust for spawner fecundity, estimates of the size of females that make each redd will be obtained visually. We intend to conduct these studies at Heising Springs on the Metolius River, which helps support one of the healthiest bull trout populations in Oregon. The second objective addresses efforts to enhance the Odell Lake bull trout population. Recently, managers installed a weir to block passage of kokanee salmon to spawning areas in Trapper Creek; bull trout were captured and placed upstream. This activity led to opposition by anglers supportive of kokanee and loss of adult bull trout by an otter that invaded the trap. Our intent is to help managers design and implement methods that 1) prevent kokanee salmon from impacting bull trout redds in Trapper Creek, 2) enable bull trout to move into and out of Trapper Creek without capture and handling, and 3) enumerate bull trout spawning in Trapper Creek. Data collected in Trapper Creek should help with design and implementation of methodologies to separate the species during the spawning season. Title: Timing and Location of Spawning by Bull Trout and Kokanee in the Odell Lake Watershed and Heising Spring of the Metolius River Watershed, 2003-04. Abstract -- Although the present size of the bull trout population within the Odell Lake Recovery Unit is unknown, it appears to be quite small. Spawning by bull trout of the Odell Lake Recovery Unit occurs only in the lower 0.8 km of Trapper Creek, below a falls presumed to be a barrier. Numbers of redds observed in Trapper Creek from 1996 through 2002 have ranged from one to 24. In addition to genetic effects caused by small population size, primary threats to the sustainability of these bull trout include limited spawning and rearing habitat in all streams, hybridization with brook trout in upper Trapper Creek, competition from other fish species, particularly lake trout in Odell Lake, and superimposition of kokanee salmon (O. nerka) redds on bull trout redds. The latter threat may be particularly detrimental because of the large number of kokanee that spawn in lower Trapper Creek. To address concerns of bull trout redd superimposition by bull trout, we designed studies to: 1) Assess the impacts to bull trout reproduction caused by kokanee that spawn at the same location, and 2) Develop acceptable methods to separate bull trout and kokanee that spawn in Trapper Creek, Odell Lake. The first objective will address the concerns that kokanee redds superimposed on bull trout redds will reduce the number of bull trout progeny. During the spawning season, we will cap several undisturbed bull trout redds and an equal number of redds superimposed with kokanee salmon redds. Emergent fry will be captured, identified, and enumerated; statistical comparisons of fry abundance will be made between both groups of redds. To adjust for spawner fecundity, estimates of the size of females that make each redd will be obtained visually. We intend to conduct these studies at Heising Springs on the Metolius River, which helps support one of the healthiest bull trout populations in Oregon. The second objective addresses efforts to enhance the Odell Lake bull trout population. Recently, managers installed a weir to block passage of kokanee salmon to spawning areas in Trapper Creek; bull trout were captured and placed upstream. This activity led to opposition by anglers supportive of kokanee and loss of adult bull trout by an otter that invaded the trap. Our intent is to help managers design and implement methods that 1) prevent kokanee salmon from impacting bull trout redds in Trapper Creek, 2) enable bull trout to move into and out of Trapper Creek without capture and handling, and 3) enumerate bull trout spawning in Trapper Creek. Data collected in Trapper Creek should help with design and implementation of methodologies to separate the species during the spawning season. Close

• 15. [Article] Native Trout Studies, 2001

  Abstract -- Summary: We radio-tagged 34 adult westslope cutthroat trout in Rail Creek and Roberts Creek in the mainstem John Day River subbasin. These fish were located weekly by telemetry, as were those ...

  Citation × Citation Citation Abstract Copy Title: Native Trout Studies, 2001 Abstract -- Summary: We radio-tagged 34 adult westslope cutthroat trout in Rail Creek and Roberts Creek in the mainstem John Day River subbasin. These fish were located weekly by telemetry, as were those with active transmitters applied in 2000, to determine seasonal movements. Habitat measurements were collected at each re-location of each radio-tagged fish to determine their seasonal habitat preferences. We collected tissue samples from westslope cutthroat trout and rainbow trout in two streams for genetic description of the populations, and to determine the extent of hybridization between the two species. We helped survey Davis Creek, tributary to the Middle Fork John Day River, to determine whether bull trout were present Title: Native Trout Studies, 2001 Abstract -- Summary: We radio-tagged 34 adult westslope cutthroat trout in Rail Creek and Roberts Creek in the mainstem John Day River subbasin. These fish were located weekly by telemetry, as were those with active transmitters applied in 2000, to determine seasonal movements. Habitat measurements were collected at each re-location of each radio-tagged fish to determine their seasonal habitat preferences. We collected tissue samples from westslope cutthroat trout and rainbow trout in two streams for genetic description of the populations, and to determine the extent of hybridization between the two species. We helped survey Davis Creek, tributary to the Middle Fork John Day River, to determine whether bull trout were present Close

• 16. [Article] Migration and Passage of Redband Trout in the Donner und Blitzen River, 2007-2009, Information Reports Number 2009-05

  Abstract -- Movement of redband trout (Oncorhynchus mykiss gairdneri) was tracked between March 2007 and June 2009 in the Donner und Blitzen River (Blitzen River). We had three primary study objectives: ...

  Citation × Citation Citation Abstract Copy Title: Migration and Passage of Redband Trout in the Donner und Blitzen River, 2007-2009, Information Reports Number 2009-05 Abstract -- Movement of redband trout (Oncorhynchus mykiss gairdneri) was tracked between March 2007 and June 2009 in the Donner und Blitzen River (Blitzen River). We had three primary study objectives: 1) examine redband trout spawning locations and spawning migration timing, 2) evaluate redband trout passage at diversion dams, and 3) investigate seasonal migration patterns of redband trout as they relate to stream temperature dynamics. We tagged 96 redband trout with radio transmitters and 706 with PIT tags. Radio tracking included both mobile and fixed station detections. We established PIT tag readers at Cato Bridge (Rkm 1), Busse Dam (Rkm 35), Grain Camp Dam (Rkm 48), and Page Dam (Rkm 76) for additional data on large-scale movement patterns. With the PIT antennas at the three diversion dams, we placed one antenna below the dam and one at the upstream exit of the fish ladders to evaluate the passage delays at each dam. Stream temperature was recorded at 10 locations in the Blitzen River throughout the study. Scales of 257 migratory trout were interpreted for age and spawning history. Our results indicated that the majority of Blitzen redband trout migrated upstream of Page Dam to spawn and that most trout spawned in the mainstem and not the tributaries. Upstream trout migration occurred from March to July, but the peak migration occurred during late April and early May. Passage problems were recorded at two of the three dams evaluated. Trout were delayed longest at Busse Dam and 44% of radio-tagged trout that approached the dam were never able to pass. Trout experienced less delay at Grain Camp Dam and only 8% of radio-tagged trout failed to pass the dam. At Page Dam, which has a recently upgraded fish ladder, trout delays were short and only 5% of trout that approached the dam were unable to pass. Potentially stressful or lethal temperatures (>24.3°C) were recorded at all monitoring locations downstream of Fish Creek, except at the site just below Page Springs. The migratory population ranged in age from 1+ to 5+, but only age 3+ and older trout were reproductively mature. This suggests that the spring upstream migration includes both adult trout seeking suitable spawning habitats and immature trout making a seasonal habitat shift for thermal refuge. A fraction of the PIT-tagged fish were observed to make two or three migrations from below Busse Dam to above Page Dam in the spring and returning back to the lower river in the fall. We recommend prioritizing fish passage at the Busse Dam and Grain Camp Dam for conservation and enhancement efforts. Title: Migration and Passage of Redband Trout in the Donner und Blitzen River, 2007-2009, Information Reports Number 2009-05 Abstract -- Movement of redband trout (Oncorhynchus mykiss gairdneri) was tracked between March 2007 and June 2009 in the Donner und Blitzen River (Blitzen River). We had three primary study objectives: 1) examine redband trout spawning locations and spawning migration timing, 2) evaluate redband trout passage at diversion dams, and 3) investigate seasonal migration patterns of redband trout as they relate to stream temperature dynamics. We tagged 96 redband trout with radio transmitters and 706 with PIT tags. Radio tracking included both mobile and fixed station detections. We established PIT tag readers at Cato Bridge (Rkm 1), Busse Dam (Rkm 35), Grain Camp Dam (Rkm 48), and Page Dam (Rkm 76) for additional data on large-scale movement patterns. With the PIT antennas at the three diversion dams, we placed one antenna below the dam and one at the upstream exit of the fish ladders to evaluate the passage delays at each dam. Stream temperature was recorded at 10 locations in the Blitzen River throughout the study. Scales of 257 migratory trout were interpreted for age and spawning history. Our results indicated that the majority of Blitzen redband trout migrated upstream of Page Dam to spawn and that most trout spawned in the mainstem and not the tributaries. Upstream trout migration occurred from March to July, but the peak migration occurred during late April and early May. Passage problems were recorded at two of the three dams evaluated. Trout were delayed longest at Busse Dam and 44% of radio-tagged trout that approached the dam were never able to pass. Trout experienced less delay at Grain Camp Dam and only 8% of radio-tagged trout failed to pass the dam. At Page Dam, which has a recently upgraded fish ladder, trout delays were short and only 5% of trout that approached the dam were unable to pass. Potentially stressful or lethal temperatures (>24.3°C) were recorded at all monitoring locations downstream of Fish Creek, except at the site just below Page Springs. The migratory population ranged in age from 1+ to 5+, but only age 3+ and older trout were reproductively mature. This suggests that the spring upstream migration includes both adult trout seeking suitable spawning habitats and immature trout making a seasonal habitat shift for thermal refuge. A fraction of the PIT-tagged fish were observed to make two or three migrations from below Busse Dam to above Page Dam in the spring and returning back to the lower river in the fall. We recommend prioritizing fish passage at the Busse Dam and Grain Camp Dam for conservation and enhancement efforts. Close

• 17. [Article] Lake Billy Chinook - 1998 Length Frequency Estimates

  Abstract -- Reports length and frequency of bull trout, Kokanee, small mouth bass, Rainbow trout, and brown trout, that were caught in Lake Billy Chinook in 1998.

  Citation × Citation Citation Abstract Copy Title: Lake Billy Chinook - 1998 Length Frequency Estimates Abstract -- Reports length and frequency of bull trout, Kokanee, small mouth bass, Rainbow trout, and brown trout, that were caught in Lake Billy Chinook in 1998. Title: Lake Billy Chinook - 1998 Length Frequency Estimates Abstract -- Reports length and frequency of bull trout, Kokanee, small mouth bass, Rainbow trout, and brown trout, that were caught in Lake Billy Chinook in 1998. Close

• 18. [Article] 2017 Bull Trout Redd Monitoring in the Wallowa Mountains

  Abstract -- Bull trout were listed as threatened under the Endangered Species Act in 1998 due to declining populations. The U. S. Fish and Wildlife Service (Service) recommends monitoring bull trout in subbasins ...

  Citation × Citation Citation Abstract Copy Title: 2017 Bull Trout Redd Monitoring in the Wallowa Mountains Abstract -- Bull trout were listed as threatened under the Endangered Species Act in 1998 due to declining populations. The U. S. Fish and Wildlife Service (Service) recommends monitoring bull trout in subbasins where little is known about the populations, including the Grande Ronde and Imnaha subbasins. Spawning survey data is important for determining relative abundance and distribution trends in bull trout populations. This report summarizes the 2017 bull trout spawning data collected in the Wallowa Mountains of northeast Oregon and compares this with past years’ data. Bull trout spawning surveys have been conducted on similar index areas for selected Grande Ronde and Imnaha River streams from 1999 to 2017. These surveyed streams are located within the Wallowa River/Minam River and Imnaha River bull trout core areas. Surveys in 2017 were conducted by the Nez Perce Tribe (NPT), the Oregon Department of Fish and Wildlife (ODFW), the Service, U.S. Forest Service (USFS), Freshwater Trust, and fisheries consultants. Objectives of the survey included: (1) locate bull trout spawning areas; (2) determine redd characteristics; (3) determine bull trout timing of spawning; (4) collect spawning density data; (5) determine and compare the spatial distribution of redds along the Lostine River in 2006 through 2017; and (6) over time use all of the data to assess local bull trout population trends and the long-term recovery of bull trout. Timing of spawning, total redds, redd sizes, and redd locations are documented in the report. Title: 2017 Bull Trout Redd Monitoring in the Wallowa Mountains Abstract -- Bull trout were listed as threatened under the Endangered Species Act in 1998 due to declining populations. The U. S. Fish and Wildlife Service (Service) recommends monitoring bull trout in subbasins where little is known about the populations, including the Grande Ronde and Imnaha subbasins. Spawning survey data is important for determining relative abundance and distribution trends in bull trout populations. This report summarizes the 2017 bull trout spawning data collected in the Wallowa Mountains of northeast Oregon and compares this with past years’ data. Bull trout spawning surveys have been conducted on similar index areas for selected Grande Ronde and Imnaha River streams from 1999 to 2017. These surveyed streams are located within the Wallowa River/Minam River and Imnaha River bull trout core areas. Surveys in 2017 were conducted by the Nez Perce Tribe (NPT), the Oregon Department of Fish and Wildlife (ODFW), the Service, U.S. Forest Service (USFS), Freshwater Trust, and fisheries consultants. Objectives of the survey included: (1) locate bull trout spawning areas; (2) determine redd characteristics; (3) determine bull trout timing of spawning; (4) collect spawning density data; (5) determine and compare the spatial distribution of redds along the Lostine River in 2006 through 2017; and (6) over time use all of the data to assess local bull trout population trends and the long-term recovery of bull trout. Timing of spawning, total redds, redd sizes, and redd locations are documented in the report. Close

• 19. [Article] Rainbow Trout (Salmo gairdneri): Including Steelhead and Stream and Lake Forms

  Abstract -- Rainbow trout are native to the Pacific Coast drainages inland to the Rockies from the Rio del Presidio River in Mexico to the Kuskokwim River in Southwest Alaska (Behnke 1979). They are also ...

  Citation × Citation Citation Abstract Copy Title: Rainbow Trout (Salmo gairdneri): Including Steelhead and Stream and Lake Forms Abstract -- Rainbow trout are native to the Pacific Coast drainages inland to the Rockies from the Rio del Presidio River in Mexico to the Kuskokwim River in Southwest Alaska (Behnke 1979). They are also native to the Peace River drainage of British Columbia and the headwaters of the Athabaska River in Alberta (MacCrimmon 1971). Their present range extends from the Arctic Circle to 55° latitude; the only continent lacking rainbow trout is Antarctica (McAfee 1966, MacCrimmon 1971). Rainbow trout occur from O to 4,5OOM above sea level (MacCrimmon 1971) and, when their entire distribution range is considered, live in association with a large number of other species (McAfee 1966). Behnke (1979) recently proposed that rainbow and steelhead trout populations east of the Cascade range be considered as a separate species from coastal populations of rainbow and steelhead trout. Title: Rainbow Trout (Salmo gairdneri): Including Steelhead and Stream and Lake Forms Abstract -- Rainbow trout are native to the Pacific Coast drainages inland to the Rockies from the Rio del Presidio River in Mexico to the Kuskokwim River in Southwest Alaska (Behnke 1979). They are also native to the Peace River drainage of British Columbia and the headwaters of the Athabaska River in Alberta (MacCrimmon 1971). Their present range extends from the Arctic Circle to 55° latitude; the only continent lacking rainbow trout is Antarctica (McAfee 1966, MacCrimmon 1971). Rainbow trout occur from O to 4,5OOM above sea level (MacCrimmon 1971) and, when their entire distribution range is considered, live in association with a large number of other species (McAfee 1966). Behnke (1979) recently proposed that rainbow and steelhead trout populations east of the Cascade range be considered as a separate species from coastal populations of rainbow and steelhead trout. Close

• 20. [Article] Trout Mini-Management Plans

  Abstract -- A list of trout mini-management plans by reservoir, lake, creek or river for the years 1978-1986.

  Citation × Citation Citation Abstract Copy Title: Trout Mini-Management Plans Abstract -- A list of trout mini-management plans by reservoir, lake, creek or river for the years 1978-1986. Title: Trout Mini-Management Plans Abstract -- A list of trout mini-management plans by reservoir, lake, creek or river for the years 1978-1986. Close

• 21. [Article] CRTCP - Minimizing Risks and Mitigation of impacts to Bull Trout (Salvelinus confluentus) from Construction of Temperature Control Facilities at Cougar Reservoir, Oregon 2003

  Abstract -- Because drafting the reservoir may adversely affect bull trout, the Corps funded this study to minimize impacts of construction on bull trout. To protect this population, we need to more fully ...

  Citation × Citation Citation Abstract Copy Title: CRTCP - Minimizing Risks and Mitigation of impacts to Bull Trout (Salvelinus confluentus) from Construction of Temperature Control Facilities at Cougar Reservoir, Oregon 2003 Abstract -- Because drafting the reservoir may adversely affect bull trout, the Corps funded this study to minimize impacts of construction on bull trout. To protect this population, we need to more fully understand the movement and habitat use of bull trout in the South Fork McKenzie watershed, and to develop an emergency action plan should environmental conditions become detrimental to the overall health of the population. Recommendations from this project will be made to the Environmental Coordination Committee in the event that actions to protect bull trout become necessary. Title: CRTCP - Minimizing Risks and Mitigation of impacts to Bull Trout (Salvelinus confluentus) from Construction of Temperature Control Facilities at Cougar Reservoir, Oregon 2003 Abstract -- Because drafting the reservoir may adversely affect bull trout, the Corps funded this study to minimize impacts of construction on bull trout. To protect this population, we need to more fully understand the movement and habitat use of bull trout in the South Fork McKenzie watershed, and to develop an emergency action plan should environmental conditions become detrimental to the overall health of the population. Recommendations from this project will be made to the Environmental Coordination Committee in the event that actions to protect bull trout become necessary. Close

• 22. [Article] A Trout Management Program for the Main Stem Lower Deschutes River 1978

  Abstract -- The Deschutes River is a north flowing tributary of the Columbia River in Central Oregon and is a designated scenic waterway. Summer run steelhead and resident trout are the most important ...

  Citation × Citation Citation Abstract Copy Title: A Trout Management Program for the Main Stem Lower Deschutes River 1978 Abstract -- The Deschutes River is a north flowing tributary of the Columbia River in Central Oregon and is a designated scenic waterway. Summer run steelhead and resident trout are the most important species to the local recreational fishery, although significant numbers of spring, summer, and fall chinook are also taken from the river. The salmon contribute significantly to fisheries in the Pacific Ocean and Columbia River and steelhead enter fisheries in the Columbia. The Deschutes also supports a good population of whitefish, lesser numbers of other trout species, small runs of coho and sockeye salmon, and several species of nongame fish. Title: A Trout Management Program for the Main Stem Lower Deschutes River 1978 Abstract -- The Deschutes River is a north flowing tributary of the Columbia River in Central Oregon and is a designated scenic waterway. Summer run steelhead and resident trout are the most important species to the local recreational fishery, although significant numbers of spring, summer, and fall chinook are also taken from the river. The salmon contribute significantly to fisheries in the Pacific Ocean and Columbia River and steelhead enter fisheries in the Columbia. The Deschutes also supports a good population of whitefish, lesser numbers of other trout species, small runs of coho and sockeye salmon, and several species of nongame fish. Close

• 23. [Article] Fish Management Plan North Fork of Middle Fork Willamette River 1979

  Abstract -- The North Fork is a moderate-sized tributary originating at Waldo Lake and entering the Middle Fork Willamette near the town of Oakridge. The river and its tributaries contain approximately ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan North Fork of Middle Fork Willamette River 1979 Abstract -- The North Fork is a moderate-sized tributary originating at Waldo Lake and entering the Middle Fork Willamette near the town of Oakridge. The river and its tributaries contain approximately 160 miles of trout producing water. The habitat is generally capable of producing a good trout population. Native cutthroat and rainbow are present throughout the system and brook trout, having moved out of Waldo Lake, are found a short distance downstream. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the North Fork, Middle Fork Willamette River for wild trout. The Commission concurrently imposed a fly angling only restriction to fishing in this stream. Title: Fish Management Plan North Fork of Middle Fork Willamette River 1979 Abstract -- The North Fork is a moderate-sized tributary originating at Waldo Lake and entering the Middle Fork Willamette near the town of Oakridge. The river and its tributaries contain approximately 160 miles of trout producing water. The habitat is generally capable of producing a good trout population. Native cutthroat and rainbow are present throughout the system and brook trout, having moved out of Waldo Lake, are found a short distance downstream. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the North Fork, Middle Fork Willamette River for wild trout. The Commission concurrently imposed a fly angling only restriction to fishing in this stream. Close

• 24. [Article] A Report upon the Production and Management of Trout in the State of Oregon, with Recommendations for Increased Efficiency

  Abstract -- This report of the production of trout and the management of the game fisheries resources within the State of Oregon summarizes the observations made during a 5.5-month survey of these conditions ...

  Citation × Citation Citation Abstract Copy Title: A Report upon the Production and Management of Trout in the State of Oregon, with Recommendations for Increased Efficiency Abstract -- This report of the production of trout and the management of the game fisheries resources within the State of Oregon summarizes the observations made during a 5.5-month survey of these conditions extending through the spring and summer of 1934. This survey was financed jointly by the Oregon Game Commission and the Division of Scientific Inquiry, United States Bureau of Fisheries. Inasmuch as this survey was purposely confined to a study of the trout of Oregon, unless specifically stated to the contrary, all statements, criticisms, and recommendations included within this report are applicable only to trout, as it was neither the purpose nor the scope of this survey to include any other game animals. Title: A Report upon the Production and Management of Trout in the State of Oregon, with Recommendations for Increased Efficiency Abstract -- This report of the production of trout and the management of the game fisheries resources within the State of Oregon summarizes the observations made during a 5.5-month survey of these conditions extending through the spring and summer of 1934. This survey was financed jointly by the Oregon Game Commission and the Division of Scientific Inquiry, United States Bureau of Fisheries. Inasmuch as this survey was purposely confined to a study of the trout of Oregon, unless specifically stated to the contrary, all statements, criticisms, and recommendations included within this report are applicable only to trout, as it was neither the purpose nor the scope of this survey to include any other game animals. Close

• 25. [Article] Native Trout Studies, Annual Progress Report, Project # F-136-R-12

  Abstract -- During 1999, we operated traps to capture upstream and downstream migrant westslope cutthroat trout in the upper mainstem John Day River and three of its tributaries. We also operated a rotary ...

  Citation × Citation Citation Abstract Copy Title: Native Trout Studies, Annual Progress Report, Project # F-136-R-12 Abstract -- During 1999, we operated traps to capture upstream and downstream migrant westslope cutthroat trout in the upper mainstem John Day River and three of its tributaries. We also operated a rotary screw trap in the John Day River downstream of all tributary traps. These traps were operated from May throughout the contract period. A total of 94 westslope cutthroat trout were captured in all traps, ranging in size from 7 to 39 cm. The screw trap also captured 4,014 fish of six other species. We continued to track cutthroat trout with radio tags implanted in 1998 throughout the life of the tags. These fish displayed a variety of movements, including fluvial migrations from Roberts Creek into the mainstem John Day River, localized movements, and a suggestion of extensive movement. We prepared a draft report of that summarizes information about westslope cutthroat trout in the John Day Basin. We helped determine the distribution and abundance of bull trout and sympatric rainbow trout in four streams of the Middle Fork John Day River. Title: Native Trout Studies, Annual Progress Report, Project # F-136-R-12 Abstract -- During 1999, we operated traps to capture upstream and downstream migrant westslope cutthroat trout in the upper mainstem John Day River and three of its tributaries. We also operated a rotary screw trap in the John Day River downstream of all tributary traps. These traps were operated from May throughout the contract period. A total of 94 westslope cutthroat trout were captured in all traps, ranging in size from 7 to 39 cm. The screw trap also captured 4,014 fish of six other species. We continued to track cutthroat trout with radio tags implanted in 1998 throughout the life of the tags. These fish displayed a variety of movements, including fluvial migrations from Roberts Creek into the mainstem John Day River, localized movements, and a suggestion of extensive movement. We prepared a draft report of that summarizes information about westslope cutthroat trout in the John Day Basin. We helped determine the distribution and abundance of bull trout and sympatric rainbow trout in four streams of the Middle Fork John Day River. Close

• 26. [Article] Trout in Running Waters 1994 - Draft

  Abstract -- This chapter covers management of resident trout species in the Rogue, Applegate, and Illinois rivers and all associated tributary streams (running waters) of the Rogue River basin. Resident ...

  Citation × Citation Citation Abstract Copy Title: Trout in Running Waters 1994 - Draft Abstract -- This chapter covers management of resident trout species in the Rogue, Applegate, and Illinois rivers and all associated tributary streams (running waters) of the Rogue River basin. Resident rainbow and resident, fluvial, and anadromous cutthroat trout are native to the Rogue River basin. Angling for trout in the Rogue River basin did not become popular until the 1930s. At this time, cutthroat and downstream migrating steelhead were abundant and easily caught from streams in settled areas of the Rogue basin. Mining roads provided easy access to the headwaters of the Applegate and Illinois rivers, Jumpoff Joe creek, and Grave creek where trout fishing was most popular. The California-Oregon Power Company developed roads that provided access to trout fishing waters in the Prospect area in 1912 and the upper Rogue River and its tributaries became accessible in 1927 when the Crater Lake Highway was completed. The Civil Conservation corps developed foot paths and roads into remote parts of the basin in the 1930s. Trout fishing in high pressure areas in the Rogue basin is maintained by stocking. A list of species and numbers of hatchery fish stocked in running waters of the Rogue River basin is presented in Appendix Table A-4. Title: Trout in Running Waters 1994 - Draft Abstract -- This chapter covers management of resident trout species in the Rogue, Applegate, and Illinois rivers and all associated tributary streams (running waters) of the Rogue River basin. Resident rainbow and resident, fluvial, and anadromous cutthroat trout are native to the Rogue River basin. Angling for trout in the Rogue River basin did not become popular until the 1930s. At this time, cutthroat and downstream migrating steelhead were abundant and easily caught from streams in settled areas of the Rogue basin. Mining roads provided easy access to the headwaters of the Applegate and Illinois rivers, Jumpoff Joe creek, and Grave creek where trout fishing was most popular. The California-Oregon Power Company developed roads that provided access to trout fishing waters in the Prospect area in 1912 and the upper Rogue River and its tributaries became accessible in 1927 when the Crater Lake Highway was completed. The Civil Conservation corps developed foot paths and roads into remote parts of the basin in the 1930s. Trout fishing in high pressure areas in the Rogue basin is maintained by stocking. A list of species and numbers of hatchery fish stocked in running waters of the Rogue River basin is presented in Appendix Table A-4. Close

• 27. [Article] 2012 Trapper Creek Redd surveys

  Abstract -- Odell Lake was once directly connected to the upper Deschutes River basin, but recent geologic activity severed this connection with the creation of Davis Lake. Despite a lack of connection ...

  Citation × Citation Citation Abstract Copy Title: 2012 Trapper Creek Redd surveys Abstract -- Odell Lake was once directly connected to the upper Deschutes River basin, but recent geologic activity severed this connection with the creation of Davis Lake. Despite a lack of connection to the Deschutes River, indigenous bull trout (Salvelinus confluentus) subsist in Odell Lake. The Odell Lake bull trout are now the only natural adfluvial bull trout population in Oregon. Despite their persistence; angling mortality, habitat degradation, hybridization, and competition with introduced species limit bull trout populations. Bull trout were listed as threatened under the Endangered Species Act in 1998 (Office of the Federal Register 63 [June 10, 1998]: 31647). ODFW has monitored this population closely by conducting weekly redd counts on an annual basis and mapping redd locations to identify areas of optimal spawning habitat in Trapper Creek. Title: 2012 Trapper Creek Redd surveys Abstract -- Odell Lake was once directly connected to the upper Deschutes River basin, but recent geologic activity severed this connection with the creation of Davis Lake. Despite a lack of connection to the Deschutes River, indigenous bull trout (Salvelinus confluentus) subsist in Odell Lake. The Odell Lake bull trout are now the only natural adfluvial bull trout population in Oregon. Despite their persistence; angling mortality, habitat degradation, hybridization, and competition with introduced species limit bull trout populations. Bull trout were listed as threatened under the Endangered Species Act in 1998 (Office of the Federal Register 63 [June 10, 1998]: 31647). ODFW has monitored this population closely by conducting weekly redd counts on an annual basis and mapping redd locations to identify areas of optimal spawning habitat in Trapper Creek. Close

• 28. [Article] Native Trout Studies, Annual Progress Report, Project # F-136-R-13

  Abstract -- We developed a proposal for studies to better describe 1) the seasonal movements and locations of adult westslope cutthroat trout in the mainstem John Day River subbasin, and 2) the characteristics ...

  Citation × Citation Citation Abstract Copy Title: Native Trout Studies, Annual Progress Report, Project # F-136-R-13 Abstract -- We developed a proposal for studies to better describe 1) the seasonal movements and locations of adult westslope cutthroat trout in the mainstem John Day River subbasin, and 2) the characteristics of habitats associated with these locations. We radio-tagged a total of 41 adult cutthroat trout, including six from Deardorff Creek, 18 from Roberts Creek, and 17 from Rail Creek to initiate efforts to describe their seasonal movements. We began to measure the characteristics of habitats used by these fish. In August, we helped survey Vinegar Creek (Middle Fork John Day River subbasin) for the presence of bull trout. Vinegar Creek was thought to no longer support bull trout, but these surveys led to the discovery of one. Title: Native Trout Studies, Annual Progress Report, Project # F-136-R-13 Abstract -- We developed a proposal for studies to better describe 1) the seasonal movements and locations of adult westslope cutthroat trout in the mainstem John Day River subbasin, and 2) the characteristics of habitats associated with these locations. We radio-tagged a total of 41 adult cutthroat trout, including six from Deardorff Creek, 18 from Roberts Creek, and 17 from Rail Creek to initiate efforts to describe their seasonal movements. We began to measure the characteristics of habitats used by these fish. In August, we helped survey Vinegar Creek (Middle Fork John Day River subbasin) for the presence of bull trout. Vinegar Creek was thought to no longer support bull trout, but these surveys led to the discovery of one. Close

• 29. [Article] Crooked River Fish Management Plan 1979

  Abstract -- The Crooked River is a major tributary to the Deschutes River and has the habitat to produce a good rainbow trout population, especially between Prineville Dam and Rice-Baldwin Dam. However, ...

  Citation × Citation Citation Abstract Copy Title: Crooked River Fish Management Plan 1979 Abstract -- The Crooked River is a major tributary to the Deschutes River and has the habitat to produce a good rainbow trout population, especially between Prineville Dam and Rice-Baldwin Dam. However, winter streamflow is minimal and high turbidity is common. The. river is not stocked but various ages and sizes of hatchery fish emigrate from Prineville Reservoir during periods of spill; and these fish constitute a sizable portion of the trout population in the river. The Crooked River has maintained a successful fishery on the combination of wild and hatchery (from Prinevi11e Reservoir) trout under general statewide regulations. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage this portion of Crooked River for wild and hatchery fish. Hatchery fish will not be stocked in this section of the river, but large numbers of hatchery trout migrate from Prineville Reservoir into the river below the dam. Title: Crooked River Fish Management Plan 1979 Abstract -- The Crooked River is a major tributary to the Deschutes River and has the habitat to produce a good rainbow trout population, especially between Prineville Dam and Rice-Baldwin Dam. However, winter streamflow is minimal and high turbidity is common. The. river is not stocked but various ages and sizes of hatchery fish emigrate from Prineville Reservoir during periods of spill; and these fish constitute a sizable portion of the trout population in the river. The Crooked River has maintained a successful fishery on the combination of wild and hatchery (from Prinevi11e Reservoir) trout under general statewide regulations. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage this portion of Crooked River for wild and hatchery fish. Hatchery fish will not be stocked in this section of the river, but large numbers of hatchery trout migrate from Prineville Reservoir into the river below the dam. Close

• 30. [Article] NF - Movement of Juvenile Redband Trout from Spencer Creek, Klamath River in 2004: Preliminary Findings - Annual Report

  Abstract -- Spencer Creek is a major spawning area and recruitment source of redband trout in the upper Klamath River. The confluence of Spencer Creek and the Klamath River is 1.5 km upstream of J.C. Boyle ...

  Citation × Citation Citation Abstract Copy Title: NF - Movement of Juvenile Redband Trout from Spencer Creek, Klamath River in 2004: Preliminary Findings - Annual Report Abstract -- Spencer Creek is a major spawning area and recruitment source of redband trout in the upper Klamath River. The confluence of Spencer Creek and the Klamath River is 1.5 km upstream of J.C. Boyle dam, which was built in 1959. Past studies provide evidence of a dramatic decline in adult upstream passage since the dam was built and relatively little juvenile downstream passage. However, sampling efforts to quantify the magnitude and extent of movements by juveniles to locations downstream of the dam were limited in scope. Operation of J.C. Boyle Dam may reduce the likelihood that juvenile redband trout from Spencer Creek can move downstream past the dam safely and efficiently and may reduce adult upstream passage to Spencer Creek. In order to understand better juvenile and adult redband trout life history and evaluate fish passage over J.C. Boyle dam, Native Fish Investigations Project plans to monitor redband trout movement in Spencer Creek and the upper Klamath River during 2004 and 2005. We plan to capture juvenile trout (>90 mm) as they emigrate from Spencer Creek and tag them with inter-peritoneal radio transmitters (NanoTags, Lotek Wireless). Adults, upstream and downstream of the dam, will also be radio tagged. Movements of radio-tagged fish will be monitored using fixed-station receivers at locations associated with hydropower facilities and mobile receivers in free-flowing reaches. In addition, we plan to mark several hundred outmigrating juvenile trout (>70mm) in Spencer Creek, and 50 adult trout in the Klamath River, with passive integrated transponder (PIT) tags and install PIT-tag receiver stations at the mouth of Spencer Creek and downstream of J.C. Boyle Dam. Title: NF - Movement of Juvenile Redband Trout from Spencer Creek, Klamath River in 2004: Preliminary Findings - Annual Report Abstract -- Spencer Creek is a major spawning area and recruitment source of redband trout in the upper Klamath River. The confluence of Spencer Creek and the Klamath River is 1.5 km upstream of J.C. Boyle dam, which was built in 1959. Past studies provide evidence of a dramatic decline in adult upstream passage since the dam was built and relatively little juvenile downstream passage. However, sampling efforts to quantify the magnitude and extent of movements by juveniles to locations downstream of the dam were limited in scope. Operation of J.C. Boyle Dam may reduce the likelihood that juvenile redband trout from Spencer Creek can move downstream past the dam safely and efficiently and may reduce adult upstream passage to Spencer Creek. In order to understand better juvenile and adult redband trout life history and evaluate fish passage over J.C. Boyle dam, Native Fish Investigations Project plans to monitor redband trout movement in Spencer Creek and the upper Klamath River during 2004 and 2005. We plan to capture juvenile trout (>90 mm) as they emigrate from Spencer Creek and tag them with inter-peritoneal radio transmitters (NanoTags, Lotek Wireless). Adults, upstream and downstream of the dam, will also be radio tagged. Movements of radio-tagged fish will be monitored using fixed-station receivers at locations associated with hydropower facilities and mobile receivers in free-flowing reaches. In addition, we plan to mark several hundred outmigrating juvenile trout (>70mm) in Spencer Creek, and 50 adult trout in the Klamath River, with passive integrated transponder (PIT) tags and install PIT-tag receiver stations at the mouth of Spencer Creek and downstream of J.C. Boyle Dam. Close

• 31. [Article] Draft - Trout and Warm Water Fish Running Waters

  Abstract -- Running Waters: Running waters include the main Rogue, Applegate, and Illinois rivers, and all associated tributary streams in the Rogue River basin. Historical information on trout in the ...

  Citation × Citation Citation Abstract Copy Title: Draft - Trout and Warm Water Fish Running Waters Abstract -- Running Waters: Running waters include the main Rogue, Applegate, and Illinois rivers, and all associated tributary streams in the Rogue River basin. Historical information on trout in the Rogue River basin was summarized by Cole M. Rivers (in press) prior to 1962. Cutthroat and downstream migrating steelhead were abundant and easily caught from streams all through the settled portions of the basin. There was no need to take a trip away from home to fish for trout. Angling for trout was not thought of as a recreational pastime until the 1930s. The headwaters of the Applegate and Illinois rivers, and Jumpoff Joe and Grave creeks were preferred for trout fishing because of the easy access provided by mining roads. The California-Oregon Power Company provided access to trout fishing waters in the Prospect region as early as 1912. The completion of the Crater Lake and Diamond Lake highways in 1927 allowed access to the upper Rogue River and its tributaries. Access to other parts of the basin was provided when foot and wagon trails were made into roads by crews of the Civil Conservation Corps in the 1930's. Most natural lakes were devoid of fish life until they were stocked by miners or cattlemen who wanted a supply of trout close to their camps. Fish Lake was one of the first impoundments preferred for sport fishing because of good cattle trails leading from the Bear creek Valley into the area. Anglers were packed in by cattlemen after the dam was built in 1898. Other impoundments providing good trout fishing in the 1920s included Emigrant Lake which received heavy pressure. Many lakes were barren of fish life until rainbow, eastern brook, or cutthroat were packed in by private parties, the Forest Service, or the Oregon Game Commission in the 1920s. Prospectors and early settlers stocked some of the lakes earlier with fish that had been collected or salvaged from creeks that were drying up. There are no records of the unofficial introductions, and those of the Game Commission burned in a fire in 1936. Table 1 lists the liberations of trout recorded by the U.S. Bureau of Fisheries from 1907 to 1940. Title: Draft - Trout and Warm Water Fish Running Waters Abstract -- Running Waters: Running waters include the main Rogue, Applegate, and Illinois rivers, and all associated tributary streams in the Rogue River basin. Historical information on trout in the Rogue River basin was summarized by Cole M. Rivers (in press) prior to 1962. Cutthroat and downstream migrating steelhead were abundant and easily caught from streams all through the settled portions of the basin. There was no need to take a trip away from home to fish for trout. Angling for trout was not thought of as a recreational pastime until the 1930s. The headwaters of the Applegate and Illinois rivers, and Jumpoff Joe and Grave creeks were preferred for trout fishing because of the easy access provided by mining roads. The California-Oregon Power Company provided access to trout fishing waters in the Prospect region as early as 1912. The completion of the Crater Lake and Diamond Lake highways in 1927 allowed access to the upper Rogue River and its tributaries. Access to other parts of the basin was provided when foot and wagon trails were made into roads by crews of the Civil Conservation Corps in the 1930's. Most natural lakes were devoid of fish life until they were stocked by miners or cattlemen who wanted a supply of trout close to their camps. Fish Lake was one of the first impoundments preferred for sport fishing because of good cattle trails leading from the Bear creek Valley into the area. Anglers were packed in by cattlemen after the dam was built in 1898. Other impoundments providing good trout fishing in the 1920s included Emigrant Lake which received heavy pressure. Many lakes were barren of fish life until rainbow, eastern brook, or cutthroat were packed in by private parties, the Forest Service, or the Oregon Game Commission in the 1920s. Prospectors and early settlers stocked some of the lakes earlier with fish that had been collected or salvaged from creeks that were drying up. There are no records of the unofficial introductions, and those of the Game Commission burned in a fire in 1936. Table 1 lists the liberations of trout recorded by the U.S. Bureau of Fisheries from 1907 to 1940. Close

• 32. [Article] Population Assessment of Lahontan Cutthroat Trout, 2005 Progress Report 2006

  Abstract -- Five of the six native Lahontan cutthroat trout (Oncorhynchus clarki henshawi) populations in Oregon exist in the Coyote Lakes basin of southeast Harney County (ODFW 2005). The major drainage's ...

  Citation × Citation Citation Abstract Copy Title: Population Assessment of Lahontan Cutthroat Trout, 2005 Progress Report 2006 Abstract -- Five of the six native Lahontan cutthroat trout (Oncorhynchus clarki henshawi) populations in Oregon exist in the Coyote Lakes basin of southeast Harney County (ODFW 2005). The major drainage's in the Coyote Lakes Basin are Willow and Whitehorse Creeks. Both drainage's originate on the north slope of Trout Creek Mountain, terminate in the dry Coyote lake bed and are currently isolated from each other or any other basin. Populations of Lahontan cutthroat in Willow and Whitehorse Creeks have been protected under the ESA as a threatened species since 1991 and are also listed as threatened under State of Oregon statute (Hanson et al.1993). Along with changes in management and land use activities, the federal recovery plan for Lahontan cutthroat trout requires the assessment of habitat conditions and population abundance at five year intervals (Coffin and Cowan 1995). Population monitoring of cutthroat in Willow and Whitehorse creeks was initiated in 1985 and has occurred on a five year interval since then (Jones et al. 1998, ODFW Aquatic Inventory Project unpublished data). The goals of this project was to continue population monitoring by obtaining an estimate of Lahontan cutthroat trout in Willow Creek and Whitehorse Creek, and to test the application of the EMAP sampling design (Stevens and Olsen 2004) to obtain this estimate. Additionally, we determined distribution of cutthroat trout in tributaries where presence was suspected but not verified, and monitored distributions of the Antelope Creek populations. Title: Population Assessment of Lahontan Cutthroat Trout, 2005 Progress Report 2006 Abstract -- Five of the six native Lahontan cutthroat trout (Oncorhynchus clarki henshawi) populations in Oregon exist in the Coyote Lakes basin of southeast Harney County (ODFW 2005). The major drainage's in the Coyote Lakes Basin are Willow and Whitehorse Creeks. Both drainage's originate on the north slope of Trout Creek Mountain, terminate in the dry Coyote lake bed and are currently isolated from each other or any other basin. Populations of Lahontan cutthroat in Willow and Whitehorse Creeks have been protected under the ESA as a threatened species since 1991 and are also listed as threatened under State of Oregon statute (Hanson et al.1993). Along with changes in management and land use activities, the federal recovery plan for Lahontan cutthroat trout requires the assessment of habitat conditions and population abundance at five year intervals (Coffin and Cowan 1995). Population monitoring of cutthroat in Willow and Whitehorse creeks was initiated in 1985 and has occurred on a five year interval since then (Jones et al. 1998, ODFW Aquatic Inventory Project unpublished data). The goals of this project was to continue population monitoring by obtaining an estimate of Lahontan cutthroat trout in Willow Creek and Whitehorse Creek, and to test the application of the EMAP sampling design (Stevens and Olsen 2004) to obtain this estimate. Additionally, we determined distribution of cutthroat trout in tributaries where presence was suspected but not verified, and monitored distributions of the Antelope Creek populations. Close

• 33. [Article] Fish Management Plan Blitzen River November 1980

  Abstract -- The Blitzen River heads on the west side of Steens Mountain in southeastern Oregon and flows north into Malheur Lake which is 31 mi south of Burns.The upper system is primarily summer rangelands ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Blitzen River November 1980 Abstract -- The Blitzen River heads on the west side of Steens Mountain in southeastern Oregon and flows north into Malheur Lake which is 31 mi south of Burns.The upper system is primarily summer rangelands where alpine meadows and aspen thickets predominate, while the lower portion has been diverted into numerous canals and ditches to meet water requirements throughout the valley and into Malheur National Refuge. There are approximately 760 square mi in the drainage area, and 279 linear mi of trout producing water. The system contains a good population of wild redband trout; and hatchery fish are stocked only in the lower river adjacent to the one developed campground. Angling pressure is light primarily because of the remote location, few vehicle access sites, rough terrain, and private ownership. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the Blitzen River for wild trout except for that portion below Page Springs gauging station where yearling hatchery trout will be released annually. Title: Fish Management Plan Blitzen River November 1980 Abstract -- The Blitzen River heads on the west side of Steens Mountain in southeastern Oregon and flows north into Malheur Lake which is 31 mi south of Burns.The upper system is primarily summer rangelands where alpine meadows and aspen thickets predominate, while the lower portion has been diverted into numerous canals and ditches to meet water requirements throughout the valley and into Malheur National Refuge. There are approximately 760 square mi in the drainage area, and 279 linear mi of trout producing water. The system contains a good population of wild redband trout; and hatchery fish are stocked only in the lower river adjacent to the one developed campground. Angling pressure is light primarily because of the remote location, few vehicle access sites, rough terrain, and private ownership. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the Blitzen River for wild trout except for that portion below Page Springs gauging station where yearling hatchery trout will be released annually. Close

• 34. [Article] Trout Creek Watershed Assessment, Part 1: Findings

  Abstract -- This assessment (part 1 of 2) includes watershed characterization, historical conditions, habitat types, hydrology, water use and quality, riparian areas, sediment sources, channel modifications, ...

  Citation × Citation Citation Abstract Copy Title: Trout Creek Watershed Assessment, Part 1: Findings Abstract -- This assessment (part 1 of 2) includes watershed characterization, historical conditions, habitat types, hydrology, water use and quality, riparian areas, sediment sources, channel modifications, fisheries, and fish habitat for Trout Creek in the Deschutes River basin. Discussion and recommendations are given for each chapter. Title: Trout Creek Watershed Assessment, Part 1: Findings Abstract -- This assessment (part 1 of 2) includes watershed characterization, historical conditions, habitat types, hydrology, water use and quality, riparian areas, sediment sources, channel modifications, fisheries, and fish habitat for Trout Creek in the Deschutes River basin. Discussion and recommendations are given for each chapter. Close

• 35. [Article] Oregon Fish Habitat Distribution - Redband Trout

  Abstract -- These data describe areas of suitable habitat believed to be used currently and historically by redband trout populations. Columbia River redband trout, Oncorhynchus mykiss gairdneri, a subspecies ...

  Citation × Citation Citation Abstract Copy Title: Oregon Fish Habitat Distribution - Redband Trout Abstract -- These data describe areas of suitable habitat believed to be used currently and historically by redband trout populations. Columbia River redband trout, Oncorhynchus mykiss gairdneri, a subspecies of rainbow trout, Oncorhynchus mykiss, is native to the Fraser and Columbia River drainages, east of the Cascade Mountains to barrier falls on the Pend Oreille, Spokane, Snake and Kootenai rivers (Allendorf et al. 1980; Behnke 1992). Northern Great Basin redband trout, Oncorhynchus mykiss newberrii, are found in the closed basins of south-central Oregon as well as the Upper Klamath Lake basin. While Upper Klamath Lake now drains to the ocean, redband trout in the basin had ancestors that came from interior connections to the Great Basin and not from connections to the ocean (Behnke 1992). Redband trout, for the purposes of habitat distribution mapping, are generally defined as stream-resident O. mykiss gairdneri; migration is confined within their natal stream or watershed while steelhead, or the anadromous life form of O.mykiss gairdneri, migrate from their natal stream to the ocean and back. It is recognized, that while redband and steelhead habitat distribution datasets are published separately, overlapping areas represent the same subspecies. The term "currently" is defined as within the past five reproductive cycles. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually. These data now comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in February 2011. The Standard document can be found at: http://gis.oregon.gov/DAS/EISPD/GEO/standards/docs/OregonFishHabitatDistributionDataStandardv2.pdf Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the Pacific Northwest Framework Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2011. Title: Oregon Fish Habitat Distribution - Redband Trout Abstract -- These data describe areas of suitable habitat believed to be used currently and historically by redband trout populations. Columbia River redband trout, Oncorhynchus mykiss gairdneri, a subspecies of rainbow trout, Oncorhynchus mykiss, is native to the Fraser and Columbia River drainages, east of the Cascade Mountains to barrier falls on the Pend Oreille, Spokane, Snake and Kootenai rivers (Allendorf et al. 1980; Behnke 1992). Northern Great Basin redband trout, Oncorhynchus mykiss newberrii, are found in the closed basins of south-central Oregon as well as the Upper Klamath Lake basin. While Upper Klamath Lake now drains to the ocean, redband trout in the basin had ancestors that came from interior connections to the Great Basin and not from connections to the ocean (Behnke 1992). Redband trout, for the purposes of habitat distribution mapping, are generally defined as stream-resident O. mykiss gairdneri; migration is confined within their natal stream or watershed while steelhead, or the anadromous life form of O.mykiss gairdneri, migrate from their natal stream to the ocean and back. It is recognized, that while redband and steelhead habitat distribution datasets are published separately, overlapping areas represent the same subspecies. The term "currently" is defined as within the past five reproductive cycles. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually. These data now comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in February 2011. The Standard document can be found at: http://gis.oregon.gov/DAS/EISPD/GEO/standards/docs/OregonFishHabitatDistributionDataStandardv2.pdf Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the Pacific Northwest Framework Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2011. Close

• 36. [Article] Oregon Resident Fish Habitat Distribution (NHD format)

  Abstract -- Oregon Resident Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by wild, natural, and/or hatchery fish populations. The ...

  Citation × Citation Citation Abstract Copy Title: Oregon Resident Fish Habitat Distribution (NHD format) Abstract -- Oregon Resident Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by wild, natural, and/or hatchery fish populations. The term "currently" is defined as within the past five reproductive cycles. Historical habitat includes suitable habitat that fish no longer access and will not access in the foreseeable future without human intervention. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually. These data comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in February 2011. The Standard document can be found at: http://gis.oregon.gov/DAS/EISPD/GEO/standards/docs/OregonFishHabitatDistributionDataStandardv2.pdf Historical habitat distribution data are within the scope of the standard and are identified via the habitat use (fhdUseType) attribute. Historical habitats are only identified outside of currently accessible habitat and are not comprehensive. Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the were originally developed against the Pacific Northwest Framework Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2014. Data were migrated to the National Hydrography Dataset in 2014. The attached geodatabase includes distribution for: Coastal Cutthroat trout, Bull trout, Redband trout, Rainbow trout, Westslope Cutthroat trout, Lahontan Cutthroat trout and Western Brook Lamprey. Data for Coastal Cutthroat trout, Rainbow trout and Western Brook Lamprey are not comprehensive. Title: Oregon Resident Fish Habitat Distribution (NHD format) Abstract -- Oregon Resident Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by wild, natural, and/or hatchery fish populations. The term "currently" is defined as within the past five reproductive cycles. Historical habitat includes suitable habitat that fish no longer access and will not access in the foreseeable future without human intervention. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually. These data comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in February 2011. The Standard document can be found at: http://gis.oregon.gov/DAS/EISPD/GEO/standards/docs/OregonFishHabitatDistributionDataStandardv2.pdf Historical habitat distribution data are within the scope of the standard and are identified via the habitat use (fhdUseType) attribute. Historical habitats are only identified outside of currently accessible habitat and are not comprehensive. Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the were originally developed against the Pacific Northwest Framework Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2014. Data were migrated to the National Hydrography Dataset in 2014. The attached geodatabase includes distribution for: Coastal Cutthroat trout, Bull trout, Redband trout, Rainbow trout, Westslope Cutthroat trout, Lahontan Cutthroat trout and Western Brook Lamprey. Data for Coastal Cutthroat trout, Rainbow trout and Western Brook Lamprey are not comprehensive. Close

• 37. [Article] Pine Creek and Catherine Creek Bull Trout Surveys - 2011

  Abstract -- Spawning ground index surveys for bull trout in the Pine Creek Basin (Baker County) and the Grande Ronde Basin (Catherine Creek)

  Citation × Citation Citation Abstract Copy Title: Pine Creek and Catherine Creek Bull Trout Surveys - 2011 Abstract -- Spawning ground index surveys for bull trout in the Pine Creek Basin (Baker County) and the Grande Ronde Basin (Catherine Creek) Title: Pine Creek and Catherine Creek Bull Trout Surveys - 2011 Abstract -- Spawning ground index surveys for bull trout in the Pine Creek Basin (Baker County) and the Grande Ronde Basin (Catherine Creek) Close

• 38. [Article] Fish Management Plan for Hyatt Lake 1990

  Abstract -- The wild fish policy and fish management policy of the Oregon Department of Fish and Wildlife {ODFW) directs that fish management plans will be written for all waters of the state. The Oregon ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan for Hyatt Lake 1990 Abstract -- The wild fish policy and fish management policy of the Oregon Department of Fish and Wildlife {ODFW) directs that fish management plans will be written for all waters of the state. The Oregon Trout Plan and Warmwater Fish Management Plan, give the direction for trout and warmwater management in basin plans as well as in plans for individual rivers and standing water bodies. Hyatt Lake is a 957 acre irrigation impoundment located 21 miles East of Ashland on the Cascade divide at an elevation of 5,016 feet. The reservoir was built in 1923 to store 16,900 acre-feet of water for irrigation use in the Medford area by the Talent Irrigation District (TID). Early in 1989, a Hyatt Lake Management Advisory Committee was created. Included were landowners, agency personnel, sportsmen's club members, legislators and other interested individuals. The group agreed that the lake should again be chemically treated to eliminate bullheads in order to pursue trout, warmwater fishes, or a combination of warmwater and trout. No management direction other than brown bullheads appeared feasible to the committee in the absence of treatment. Title: Fish Management Plan for Hyatt Lake 1990 Abstract -- The wild fish policy and fish management policy of the Oregon Department of Fish and Wildlife {ODFW) directs that fish management plans will be written for all waters of the state. The Oregon Trout Plan and Warmwater Fish Management Plan, give the direction for trout and warmwater management in basin plans as well as in plans for individual rivers and standing water bodies. Hyatt Lake is a 957 acre irrigation impoundment located 21 miles East of Ashland on the Cascade divide at an elevation of 5,016 feet. The reservoir was built in 1923 to store 16,900 acre-feet of water for irrigation use in the Medford area by the Talent Irrigation District (TID). Early in 1989, a Hyatt Lake Management Advisory Committee was created. Included were landowners, agency personnel, sportsmen's club members, legislators and other interested individuals. The group agreed that the lake should again be chemically treated to eliminate bullheads in order to pursue trout, warmwater fishes, or a combination of warmwater and trout. No management direction other than brown bullheads appeared feasible to the committee in the absence of treatment. Close

• 39. [Article] Fish Management Plan Upper Klamath Lake and Agency Lake 1981

  Abstract -- Upper Klamath Lake is Oregon's largest lake. It lies north of Klamath Falls and is the focal point of the upper Klamath Basin. Agency Lake lies just north of Klamath Lake and the two are connected ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Upper Klamath Lake and Agency Lake 1981 Abstract -- Upper Klamath Lake is Oregon's largest lake. It lies north of Klamath Falls and is the focal point of the upper Klamath Basin. Agency Lake lies just north of Klamath Lake and the two are connected by a strait. Upper Klamath Lake averages 64,000 surface acres and Agency Lake 8,200 acres. Both lakes are shallow, and highly productive, and produce large trout. Rainbow trout is the common species found. Brown trout are also present but most are found in Agency Lake. These lakes have sustained fisheries for many years and have long stocking histories. A review of the management history and the discovery of a fish disease ("Ceratomyxa shasta") led to the conclusion that stocked rainbow have contributed little to the fishery. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Upper Klamath Lake and Agency Lake for wild trout. Title: Fish Management Plan Upper Klamath Lake and Agency Lake 1981 Abstract -- Upper Klamath Lake is Oregon's largest lake. It lies north of Klamath Falls and is the focal point of the upper Klamath Basin. Agency Lake lies just north of Klamath Lake and the two are connected by a strait. Upper Klamath Lake averages 64,000 surface acres and Agency Lake 8,200 acres. Both lakes are shallow, and highly productive, and produce large trout. Rainbow trout is the common species found. Brown trout are also present but most are found in Agency Lake. These lakes have sustained fisheries for many years and have long stocking histories. A review of the management history and the discovery of a fish disease ("Ceratomyxa shasta") led to the conclusion that stocked rainbow have contributed little to the fishery. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Upper Klamath Lake and Agency Lake for wild trout. Close

• 40. [Article] Estimated contribution of hatchery rainbow trout using a series of high-reward tagging programs; a statewide comparison among stocking sizes (2014-2017), Information Reports 2019-02

  Abstract -- Tag reward programs were implemented at 14 lakes across Oregon between 2014 and 2017 to evaluate the effect of the stocking size of hatchery rainbow trout and their contribution to the fishery. ...

  Citation × Citation Citation Abstract Copy Title: Estimated contribution of hatchery rainbow trout using a series of high-reward tagging programs; a statewide comparison among stocking sizes (2014-2017), Information Reports 2019-02 Abstract -- Tag reward programs were implemented at 14 lakes across Oregon between 2014 and 2017 to evaluate the effect of the stocking size of hatchery rainbow trout and their contribution to the fishery. In general, trophy fish (~1 fpp) returned to the fishery at higher proportions than catchable (~2 fpp) or legal sized fish (~ 3 fpp), often making them a more cost-effective choice to achieve the same angler catch rates. While several hypotheses are proposed to explain why small fish fail to return to the creel, without angling effort they remain confounded. Future trout evaluations should focus on finding complementary tools to assess fishing effort and address uncertainty in tag reporting rates. The effect of specific trout stocks was not assessed in this analysis. Title: Estimated contribution of hatchery rainbow trout using a series of high-reward tagging programs; a statewide comparison among stocking sizes (2014-2017), Information Reports 2019-02 Abstract -- Tag reward programs were implemented at 14 lakes across Oregon between 2014 and 2017 to evaluate the effect of the stocking size of hatchery rainbow trout and their contribution to the fishery. In general, trophy fish (~1 fpp) returned to the fishery at higher proportions than catchable (~2 fpp) or legal sized fish (~ 3 fpp), often making them a more cost-effective choice to achieve the same angler catch rates. While several hypotheses are proposed to explain why small fish fail to return to the creel, without angling effort they remain confounded. Future trout evaluations should focus on finding complementary tools to assess fishing effort and address uncertainty in tag reporting rates. The effect of specific trout stocks was not assessed in this analysis. Close

• 41. [Article] Project Completion Report McKenzie and Middle Fork Willamette Bull Trout Monitoring Grant, Grant Number: 209-3069

  Abstract -- This Bull Trout Monitoring Report summarizes and highlights monitoring, accomplishments in 2009 and 2010. It is our goal to be a proactive partner to a variety of interested parties; state, ...

  Citation × Citation Citation Abstract Copy Title: Project Completion Report McKenzie and Middle Fork Willamette Bull Trout Monitoring Grant, Grant Number: 209-3069 Abstract -- This Bull Trout Monitoring Report summarizes and highlights monitoring, accomplishments in 2009 and 2010. It is our goal to be a proactive partner to a variety of interested parties; state, federal and private interests, whose goals and missions are aligned with ours to restore and strengthen not only our native fish populations, but the habitat they are found in and depend on. The fisheries department believes strongly in restoration, habitat improvement and success for our streams, rivers, watershed, and forest; dedicating ourselves daily to the strategic planning and goals of the bull trout monitoring program summarized in this report. Title: Project Completion Report McKenzie and Middle Fork Willamette Bull Trout Monitoring Grant, Grant Number: 209-3069 Abstract -- This Bull Trout Monitoring Report summarizes and highlights monitoring, accomplishments in 2009 and 2010. It is our goal to be a proactive partner to a variety of interested parties; state, federal and private interests, whose goals and missions are aligned with ours to restore and strengthen not only our native fish populations, but the habitat they are found in and depend on. The fisheries department believes strongly in restoration, habitat improvement and success for our streams, rivers, watershed, and forest; dedicating ourselves daily to the strategic planning and goals of the bull trout monitoring program summarized in this report. Close

• 42. [Article] Odell Lake trap net information

  Abstract -- Odell Lake is a glacial lake located near the eastern summit of Willamette pass. The lake 3,582 feet and has an average depth of 134 feet. Bull trout (Salvelinus confluentus), rainbow trout ...

  Citation × Citation Citation Abstract Copy Title: Odell Lake trap net information Abstract -- Odell Lake is a glacial lake located near the eastern summit of Willamette pass. The lake 3,582 feet and has an average depth of 134 feet. Bull trout (Salvelinus confluentus), rainbow trout (Oncorhynchus mykiss), and mountain whitefish (Prosopium williamsoni) are the only fish native to the lake. However, the lake now has lake trout, kokanee, and tui chub. The Department samples the lake annually to assess species composition, fish size, and fish health. The results of these efforts are included. Title: Odell Lake trap net information Abstract -- Odell Lake is a glacial lake located near the eastern summit of Willamette pass. The lake 3,582 feet and has an average depth of 134 feet. Bull trout (Salvelinus confluentus), rainbow trout (Oncorhynchus mykiss), and mountain whitefish (Prosopium williamsoni) are the only fish native to the lake. However, the lake now has lake trout, kokanee, and tui chub. The Department samples the lake annually to assess species composition, fish size, and fish health. The results of these efforts are included. Close

• 43. [Article] Crane Prairie Reservoir Creel Survey, Boat and Bank Anglers - 2007 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates

  Abstract -- Crane Prairie Reservoir Creel Survey Results, Boat and Bank Anglers - April 28-October 31, 2007

  Citation × Citation Citation Abstract Copy Title: Crane Prairie Reservoir Creel Survey, Boat and Bank Anglers - 2007 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Crane Prairie Reservoir Creel Survey Results, Boat and Bank Anglers - April 28-October 31, 2007 Title: Crane Prairie Reservoir Creel Survey, Boat and Bank Anglers - 2007 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Crane Prairie Reservoir Creel Survey Results, Boat and Bank Anglers - April 28-October 31, 2007 Close

• 44. [Article] Crane Prairie Reservoir Creel Survey, Boat and Bank Anglers - 2006 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates

  Abstract -- Crane Prairie Reservoir Creel Survey Results, Boat and Bank Anglers - May 1-September 30, 2006

  Citation × Citation Citation Abstract Copy Title: Crane Prairie Reservoir Creel Survey, Boat and Bank Anglers - 2006 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Crane Prairie Reservoir Creel Survey Results, Boat and Bank Anglers - May 1-September 30, 2006 Title: Crane Prairie Reservoir Creel Survey, Boat and Bank Anglers - 2006 Estimated Catch and Effort, Sampled Catch and Effort, and Estimated Catch Rates Abstract -- Crane Prairie Reservoir Creel Survey Results, Boat and Bank Anglers - May 1-September 30, 2006 Close

• 45. [Article] Fish Management Plan Lemolo Reservoir 1980

  Abstract -- Lemolo Reservoir is a Pacific Power and Light Company power production impoundment at RM 93 on the North Umpqua River. It was first filled with water in 1954 and first stocked with trout in ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Lemolo Reservoir 1980 Abstract -- Lemolo Reservoir is a Pacific Power and Light Company power production impoundment at RM 93 on the North Umpqua River. It was first filled with water in 1954 and first stocked with trout in 1955. Access is via a 4 mi paved road from the North Umpqua Highway (Oregon 138}. The US Forest Service manages the land surrounding the reservoir and maintains the campgrounds. A resort is present. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Lemolo Reservoir for a wild brown trout fishery. The Commission also adopted a regulation of 5 trout 6 inches or over per day beginning in 1981. Title: Fish Management Plan Lemolo Reservoir 1980 Abstract -- Lemolo Reservoir is a Pacific Power and Light Company power production impoundment at RM 93 on the North Umpqua River. It was first filled with water in 1954 and first stocked with trout in 1955. Access is via a 4 mi paved road from the North Umpqua Highway (Oregon 138}. The US Forest Service manages the land surrounding the reservoir and maintains the campgrounds. A resort is present. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Lemolo Reservoir for a wild brown trout fishery. The Commission also adopted a regulation of 5 trout 6 inches or over per day beginning in 1981. Close

• 46. [Article] Fish Management Plan Metolius River 1981

  Abstract -- The Metolius River is a major tributary to the Deschutes River and courses through an extremely popular recreation area. It is roaded almost its entire length, and is located a short drive ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Metolius River 1981 Abstract -- The Metolius River is a major tributary to the Deschutes River and courses through an extremely popular recreation area. It is roaded almost its entire length, and is located a short drive off U.S. Highway 26. The stream is a favorite of many trout anglers. The Oregon Department of Fish and Wildlife Department is currently managing the Metolius River from Lake Creek to Candle Creek (11 miles) with annual releases of hatchery yearling rainbow trout. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the Metolius River for wild and hatchery trout. Title: Fish Management Plan Metolius River 1981 Abstract -- The Metolius River is a major tributary to the Deschutes River and courses through an extremely popular recreation area. It is roaded almost its entire length, and is located a short drive off U.S. Highway 26. The stream is a favorite of many trout anglers. The Oregon Department of Fish and Wildlife Department is currently managing the Metolius River from Lake Creek to Candle Creek (11 miles) with annual releases of hatchery yearling rainbow trout. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the Metolius River for wild and hatchery trout. Close

• 47. [Article] Williamson River Trout Management Program 1978

  Abstract -- No management alternatives are presented for the main stem Williamson since yearling hatchery trout are no longer stocked. The Williamson River is the major tributary to Klamath Lake and prior to ...

  Citation × Citation Citation Abstract Copy Title: Williamson River Trout Management Program 1978 Abstract -- No management alternatives are presented for the main stem Williamson since yearling hatchery trout are no longer stocked. The Williamson River is the major tributary to Klamath Lake and prior to liquidation of the Klamath Indian reservation in 1954, little physical and biological data were gathered as the system was essentially within the reservation boundaries. Since 1968, however, Department activities have centered on life-history studies. The lower Williamson, in conjunction with Klamath Lake, is a productive stream and its capability to produce wild trout must be assured. Title: Williamson River Trout Management Program 1978 Abstract -- No management alternatives are presented for the main stem Williamson since yearling hatchery trout are no longer stocked. The Williamson River is the major tributary to Klamath Lake and prior to liquidation of the Klamath Indian reservation in 1954, little physical and biological data were gathered as the system was essentially within the reservation boundaries. Since 1968, however, Department activities have centered on life-history studies. The lower Williamson, in conjunction with Klamath Lake, is a productive stream and its capability to produce wild trout must be assured. Close

• 48. [Article] An evaluation of the Trout Stocking Program at Siltcoos Lake

  Abstract -- The majority of Siltcoos Lake anglers seek warm-water game fish, the significant amount of trolling observed demonstrates a strong interest in the trout fishery. This report outlines advantages ...

  Citation × Citation Citation Abstract Copy Title: An evaluation of the Trout Stocking Program at Siltcoos Lake Abstract -- The majority of Siltcoos Lake anglers seek warm-water game fish, the significant amount of trolling observed demonstrates a strong interest in the trout fishery. This report outlines advantages and disadvantages of releasing hatchery trout in the lake. Results of creel census sampling at the lake and at trapping studies in Siltcoos River are described. Two additional stocking experiments are suggested. Title: An evaluation of the Trout Stocking Program at Siltcoos Lake Abstract -- The majority of Siltcoos Lake anglers seek warm-water game fish, the significant amount of trolling observed demonstrates a strong interest in the trout fishery. This report outlines advantages and disadvantages of releasing hatchery trout in the lake. Results of creel census sampling at the lake and at trapping studies in Siltcoos River are described. Two additional stocking experiments are suggested. Close

• 49. [Article] Changes in Trout Stocking Programs Due for Florence Area Waters in 1995

  Abstract -- There will be some changes in the trout stocking program for lakes in the Florence area this year, according to the Oregon Department of Fish and Wildlife. Some lakes will receive more fish, ...

  Citation × Citation Citation Abstract Copy Title: Changes in Trout Stocking Programs Due for Florence Area Waters in 1995 Abstract -- There will be some changes in the trout stocking program for lakes in the Florence area this year, according to the Oregon Department of Fish and Wildlife. Some lakes will receive more fish, some Jess, some will get bigger fish, and some a different species of trout. There will also be some changes in when and how often some lakes are stocked. Title: Changes in Trout Stocking Programs Due for Florence Area Waters in 1995 Abstract -- There will be some changes in the trout stocking program for lakes in the Florence area this year, according to the Oregon Department of Fish and Wildlife. Some lakes will receive more fish, some Jess, some will get bigger fish, and some a different species of trout. There will also be some changes in when and how often some lakes are stocked. Close

• 50. [Article] Comments from Douglas Timber Operators & Northwest Forest Resource Council to NMFS 1994

  Abstract -- We have prepared comments in response to the National Marine Fisheries Service's request for information on a proposed rule to list Oregon's Umpqua River coastal cutthroat trout as endangered ...

  Citation × Citation Citation Abstract Copy Title: Comments from Douglas Timber Operators & Northwest Forest Resource Council to NMFS 1994 Abstract -- We have prepared comments in response to the National Marine Fisheries Service's request for information on a proposed rule to list Oregon's Umpqua River coastal cutthroat trout as endangered under the Endangered Species Act. Our comments contain new biological and environmental information from the range of the Umpqua cutthroat trout. Our intent is to help the agency determine whether to list the Umpqua cutthroat trout as endangered. Title: Comments from Douglas Timber Operators & Northwest Forest Resource Council to NMFS 1994 Abstract -- We have prepared comments in response to the National Marine Fisheries Service's request for information on a proposed rule to list Oregon's Umpqua River coastal cutthroat trout as endangered under the Endangered Species Act. Our comments contain new biological and environmental information from the range of the Umpqua cutthroat trout. Our intent is to help the agency determine whether to list the Umpqua cutthroat trout as endangered. Close

• 51. [Article] Hood River Bull Trout Abundance, Life History, and Habitat Connectivity, 2007 Progress Reports 2007

  Abstract -- Hood River bull trout are thought to exist as two independent reproductive units (USFWS 2004), known as local populations (Rieman and McIntyre 1995). The Clear Branch local population is isolated ...

  Citation × Citation Citation Abstract Copy Title: Hood River Bull Trout Abundance, Life History, and Habitat Connectivity, 2007 Progress Reports 2007 Abstract -- Hood River bull trout are thought to exist as two independent reproductive units (USFWS 2004), known as local populations (Rieman and McIntyre 1995). The Clear Branch local population is isolated above Clear Branch Dam, which provides limited downstream fish passage during infrequent and sporadic periods of spill and no upstream passage. Bull trout in this population inhabit Laurance Lake Reservoir and tributaries upstream of Clear Branch Dam. The Hood River local population occurs in the mainstem Hood River and Middle Fork Hood River downstream of the Clear Branch Dam and a small number of adult bull trout migrate each year into the Hood River from the Columbia River (Figure 1). The status of both populations is extremely precarious. The Clear Branch population is at risk of a random extinction event due to low numbers, negative interactions with non-native smallmouth bass, isolation and limited spawning habitat (USFWS, 1998). The Hood River population also appears to be small and is threatened by passage barriers, unscreened irrigation systems, impaired water quality and periodic siltation of spawning substrate by glacial outbursts. Clear Branch bull trout spawn in Clear Branch and Pinnacle Creek. After rearing in these two natal streams for an unknown time period, most are believed to migrate downstream to Laurance Lake Reservoir. Clear Branch bull trout have been documented passing over the dam spillway during high water events (Pribyl et al. 1996) and may provide a recruitment source for the Hood River local population. Adult bull trout tagged at Powerdale Dam have been observed at Coe Branch irrigation diversion and in a trap at the base of Clear Branch dam. These fish may have been attempting to reach spawning areas located upstream of the dam. However, the success of bull trout migrating downstream via the spillway or the possibility of successfully navigating through the diversion network has never been determined. Depending on the water year, the Middle Fork Irrigation District (MFID) may not spill at all, or the timing of the spill may not coincide with the timing of downstream migration, which is currently unknown (East Fork Hood River and Middle Fork Hood River Watershed analysis). Smallmouth bass were discovered in Lake Laurance Reservoir in the 1990s. Creel surveys have shown that large adult bass are caught occasionally in the reservoir and schools of bass fry have been seen by district fish biologist (Rod French, ODFW, personal communication), suggesting that they are spawning successfully. This illegal introduction poses a potential threat to the Clear Branch bull trout population, but its magnitude is unknown because the bass population size and degree of interaction between the two species are unknown. Bull trout and smallmouth bass have significantly different temperature preferences and tolerances, with bull trout being one of the most sensitive coldwater species and bass being a warm water species. Lake Laurance, a relatively high-altitude reservoir at 890 m (2,920 feet), does not provide ideal bass habitat so these two species may have largely non-overlapping distributions or differing activity periods (Terry Shrader, ODFW warmwater fish biologist, personal communication). However, based on past reservoir temperature data (Berger et al. 2005), there are periods in the reservoir when there is potential for bull trout and bass interaction: periods when bull trout are susceptible to bass predation and when juvenile fish might compete for resources. Spawning activity of the Hood River local population has been observed in a few locations within the Middle Fork of Hood River (Figure 1). Although consistent and extensive spawning areas for this population are not known, some of the locations where juvenile rearing or potential bull trout redds have been observed include the Middle Fork Hood River and some of its tributaries: Bear Creek, Compass Creek and Coe Branch (USFWS 2004). However, Coe Branch, Compass Creek, and the Middle Fork are glacial streams with a high volume of sand and silt which may compromise spawning success. No bull trout spawning or rearing has been observed on the East and West Forks of Hood River. The Middle Fork and mainstem Hood River provide foraging, migration and overwintering habitat. Hood River bull trout are also known to migrate into the Columbia River. Two bull trout tagged at Powerdale Dam (RK 7.2 of mainstem Hood River) were recovered near Drano Lake in Washington State; and one was captured 11 kilometers downstream of the confluence of the Hood and Columbia Rivers (USFWS 2004). Every year (usually between May and July), adult bull trout, presumably migrating upstream from the Columbia River, are captured and anchor tagged at Powerdale Dam. Although some of these tagged fish have been observed upstream (one in Coe Branch and three below Clear Branch dam), the spawning destination of fluvial adults within the Hood River basin is largely unknown. Dispersing juvenile bull trout and migrating adults in this local population are threatened by flow diversions with inadequate screening and passage facilities. Several structures are suspected to impede upstream migration or entrain juvenile and adult bull trout into irrigation works (Pribyl et al. 1996, HRWG 1999). These structures include: the diversion at Clear Branch Dam (passage and screening), Coe Branch (passage and screening), and the Farmers Irrigation District diversion (screening) on the mainstem Hood River (HRWG 1999). However, little research has been conducted to assess the impacts of these structures on migrating bull trout. Beyond a general knowledge of the distribution of Hood River bull trout and the nature of anthropogenic factors that potentially restrict their life history and habitat connectivity, little is known about this recovery unit. Baseline information about adult abundance is lacking for both local populations, the potential of a source (Clear Branch) and sink (Hood River) relationship between the two local populations has not been explored, and the migratory life history of adult fish caught at Powerdale Dam is unknown. The degree to which irrigation and hydropower diversions hamper connectivity within the Hood River basin is also poorly understood. Migratory life histories have been viewed as key to species persistence (Rieman and McIntyre 1995; Dunham and Rieman 1999), and understanding movement patterns and associated habitat requirements are critical to maintaining those migratory forms (Muhlfeld and Morotz 2005; Hostettler 2005). Gaining this information is also critical to evaluating bull trout recovery in the Hood River Subbasin (Coccoli 2004). The Oregon Department of Fish and Wildlife (ODFW) initiated a study in 2006 to improve our understanding of the abundance, life history, and potential limiting factors of the bull trout in this recovery unit. This report describes findings for the first two years of the study (2006-2007). Specific study objectives for the first two years were: 1. Determine the migratory life history of Hood River bull trout and assess the potential impacts of flow diversions and two new falls on the Middle Fork Hood River (scoured by the November 2006 glacial outburst) on bull trout migrations. 2. Determine current distribution of bull trout reproduction and early rearing in historical and potential bull trout streams in the Hood River Subbasin. 3. Determine the juvenile and adult life history the Clear Branch local population and develop a statistically reliable and cost-effective protocol for monitoring the abundance of adult Clear Branch bull trout. 4. Assess the potential impact of smallmouth bass on bull trout in Laurance Lake Reservoir. Title: Hood River Bull Trout Abundance, Life History, and Habitat Connectivity, 2007 Progress Reports 2007 Abstract -- Hood River bull trout are thought to exist as two independent reproductive units (USFWS 2004), known as local populations (Rieman and McIntyre 1995). The Clear Branch local population is isolated above Clear Branch Dam, which provides limited downstream fish passage during infrequent and sporadic periods of spill and no upstream passage. Bull trout in this population inhabit Laurance Lake Reservoir and tributaries upstream of Clear Branch Dam. The Hood River local population occurs in the mainstem Hood River and Middle Fork Hood River downstream of the Clear Branch Dam and a small number of adult bull trout migrate each year into the Hood River from the Columbia River (Figure 1). The status of both populations is extremely precarious. The Clear Branch population is at risk of a random extinction event due to low numbers, negative interactions with non-native smallmouth bass, isolation and limited spawning habitat (USFWS, 1998). The Hood River population also appears to be small and is threatened by passage barriers, unscreened irrigation systems, impaired water quality and periodic siltation of spawning substrate by glacial outbursts. Clear Branch bull trout spawn in Clear Branch and Pinnacle Creek. After rearing in these two natal streams for an unknown time period, most are believed to migrate downstream to Laurance Lake Reservoir. Clear Branch bull trout have been documented passing over the dam spillway during high water events (Pribyl et al. 1996) and may provide a recruitment source for the Hood River local population. Adult bull trout tagged at Powerdale Dam have been observed at Coe Branch irrigation diversion and in a trap at the base of Clear Branch dam. These fish may have been attempting to reach spawning areas located upstream of the dam. However, the success of bull trout migrating downstream via the spillway or the possibility of successfully navigating through the diversion network has never been determined. Depending on the water year, the Middle Fork Irrigation District (MFID) may not spill at all, or the timing of the spill may not coincide with the timing of downstream migration, which is currently unknown (East Fork Hood River and Middle Fork Hood River Watershed analysis). Smallmouth bass were discovered in Lake Laurance Reservoir in the 1990s. Creel surveys have shown that large adult bass are caught occasionally in the reservoir and schools of bass fry have been seen by district fish biologist (Rod French, ODFW, personal communication), suggesting that they are spawning successfully. This illegal introduction poses a potential threat to the Clear Branch bull trout population, but its magnitude is unknown because the bass population size and degree of interaction between the two species are unknown. Bull trout and smallmouth bass have significantly different temperature preferences and tolerances, with bull trout being one of the most sensitive coldwater species and bass being a warm water species. Lake Laurance, a relatively high-altitude reservoir at 890 m (2,920 feet), does not provide ideal bass habitat so these two species may have largely non-overlapping distributions or differing activity periods (Terry Shrader, ODFW warmwater fish biologist, personal communication). However, based on past reservoir temperature data (Berger et al. 2005), there are periods in the reservoir when there is potential for bull trout and bass interaction: periods when bull trout are susceptible to bass predation and when juvenile fish might compete for resources. Spawning activity of the Hood River local population has been observed in a few locations within the Middle Fork of Hood River (Figure 1). Although consistent and extensive spawning areas for this population are not known, some of the locations where juvenile rearing or potential bull trout redds have been observed include the Middle Fork Hood River and some of its tributaries: Bear Creek, Compass Creek and Coe Branch (USFWS 2004). However, Coe Branch, Compass Creek, and the Middle Fork are glacial streams with a high volume of sand and silt which may compromise spawning success. No bull trout spawning or rearing has been observed on the East and West Forks of Hood River. The Middle Fork and mainstem Hood River provide foraging, migration and overwintering habitat. Hood River bull trout are also known to migrate into the Columbia River. Two bull trout tagged at Powerdale Dam (RK 7.2 of mainstem Hood River) were recovered near Drano Lake in Washington State; and one was captured 11 kilometers downstream of the confluence of the Hood and Columbia Rivers (USFWS 2004). Every year (usually between May and July), adult bull trout, presumably migrating upstream from the Columbia River, are captured and anchor tagged at Powerdale Dam. Although some of these tagged fish have been observed upstream (one in Coe Branch and three below Clear Branch dam), the spawning destination of fluvial adults within the Hood River basin is largely unknown. Dispersing juvenile bull trout and migrating adults in this local population are threatened by flow diversions with inadequate screening and passage facilities. Several structures are suspected to impede upstream migration or entrain juvenile and adult bull trout into irrigation works (Pribyl et al. 1996, HRWG 1999). These structures include: the diversion at Clear Branch Dam (passage and screening), Coe Branch (passage and screening), and the Farmers Irrigation District diversion (screening) on the mainstem Hood River (HRWG 1999). However, little research has been conducted to assess the impacts of these structures on migrating bull trout. Beyond a general knowledge of the distribution of Hood River bull trout and the nature of anthropogenic factors that potentially restrict their life history and habitat connectivity, little is known about this recovery unit. Baseline information about adult abundance is lacking for both local populations, the potential of a source (Clear Branch) and sink (Hood River) relationship between the two local populations has not been explored, and the migratory life history of adult fish caught at Powerdale Dam is unknown. The degree to which irrigation and hydropower diversions hamper connectivity within the Hood River basin is also poorly understood. Migratory life histories have been viewed as key to species persistence (Rieman and McIntyre 1995; Dunham and Rieman 1999), and understanding movement patterns and associated habitat requirements are critical to maintaining those migratory forms (Muhlfeld and Morotz 2005; Hostettler 2005). Gaining this information is also critical to evaluating bull trout recovery in the Hood River Subbasin (Coccoli 2004). The Oregon Department of Fish and Wildlife (ODFW) initiated a study in 2006 to improve our understanding of the abundance, life history, and potential limiting factors of the bull trout in this recovery unit. This report describes findings for the first two years of the study (2006-2007). Specific study objectives for the first two years were: 1. Determine the migratory life history of Hood River bull trout and assess the potential impacts of flow diversions and two new falls on the Middle Fork Hood River (scoured by the November 2006 glacial outburst) on bull trout migrations. 2. Determine current distribution of bull trout reproduction and early rearing in historical and potential bull trout streams in the Hood River Subbasin. 3. Determine the juvenile and adult life history the Clear Branch local population and develop a statistically reliable and cost-effective protocol for monitoring the abundance of adult Clear Branch bull trout. 4. Assess the potential impact of smallmouth bass on bull trout in Laurance Lake Reservoir. Close

• 52. [Article] Abundance, Life History, and Distribution of Bull Trout in the Hood River Basin: A Summary of Findings from 2006 to 2009 Information Reports number 2010-01

  Abstract -- Bull trout have been adversely affected by many land, water, and fisheries management activities throughout the range of the species. Degraded and fragmented habitat and negative interactions with ...

  Citation × Citation Citation Abstract Copy Title: Abundance, Life History, and Distribution of Bull Trout in the Hood River Basin: A Summary of Findings from 2006 to 2009 Information Reports number 2010-01 Abstract -- Bull trout have been adversely affected by many land, water, and fisheries management activities throughout the range of the species. Degraded and fragmented habitat and negative interactions with nonnative fishes have led to a decline in bull trout distribution and abundance, several local extirpations, and a federal listing in 1998 as a threatened species under the Endangered Species Act (USFWS 2002). Distribution and abundance of bull trout also have declined in Oregon, and most management units in the state are considered to be threatened by conservation risks (ODFW 2005). One of these at-risk management units exists in the Hood River basin (ODFW 2005). Bull trout in Hood River basin currently are thought to exist as two independent reproductive units (USFWS 2002), known as local populations (Rieman and McIntyre 1995). The Clear Branch local population was isolated from the rest of the basin by the construction of Clear Branch Dam in 1968. This dam provides limited downstream fish passage during periods of spill and no voluntary upstream passage. Bull trout in this population inhabit Laurance Lake reservoir and the tributaries Pinnacle Creek and upper Clear Branch, which flow into the reservoir. The Hood River local population is distributed in the mainstem Hood River, Middle Fork Hood River (Middle Fork), and a few Middle Fork tributaries. Fluvial migrants from Hood River basin also forage and winter in the Columbia River (Pribyl et al. 1996, Buchanan et al. 1997). Bull trout have been observed in the East and West Fork basins of the Hood River, but these sightings have been rare. Presently, there is little evidence to suggest local populations exist in these tributary basins (USFWS 2002, Reagan and Olsen 2008). The status of both local populations is extremely precarious. Threats that put the Clear Branch population at risk of extirpation include low abundance, negative interactions with illegally introduced smallmouth bass, isolation from upstream migration and immigration, and diminished spawning and rearing habitat (USFW 1998). The Hood River population also appears to be small and is affected by passage barriers, unscreened irrigation diversions, impaired water quality, and periodic debris flows during glacial outbursts (USFWS 1998). As mandated by their federally designated threatened status, recovery plans were drafted by the US Fish and Wildlife Service (USFWS) for each distinct population segment, including for Hood River bull trout in 2002. This draft plan listed four goals for recovery in this basin: 1) establish at least one more local population in addition to the two existing populations, 2) increase the estimated adult population in the basin to at least 500 individuals, 3) achieve a stable or increasing trend at the population recovery level for at least two generations (=10 years), and 4) improve habitat connectivity by addressing problems with passage and screening at diversions and seasonal water quality barriers (USFWS 2002). The recovery plan also sets out research and monitoring needs critical to the recovery of these populations. Needed are accurate adult abundance estimates; a standardized monitoring program; more life history information for each local population, including how Hood River bull trout use of the Columbia River and the effects of potential passage obstructions on movement; and more information on the threat posed to the Clear Branch population by the illegal introduction of smallmouth bass in Lake Laurance reservoir. The Oregon Department of Fish and Wildlife (ODFW), with the help of the USDA Forest Service (USFS), initiated a four-year study in 2006 seeking to address these needs by synthesizing available data and conducting further studies to improve our understanding of the abundance, life history, and potential limiting factors of bull trout in the Hood River recovery unit. This report describes our findings, summarizes previous studies in the context of new information, and recommends a standardized monitoring protocol and future research. Our specific study objectives were as follows: 1. Assess adult abundance of the Clear Branch local population and develop a monitoring protocol to track abundance trends that is statistically reliable, cost-effective, and that minimizes potential adverse effects on this small isolated population. 2. Describe the juvenile and adult life history patterns of the Clear Branch local population. 3. Assess the potential impact of smallmouth bass on bull trout in Laurance Lake reservoir. 4. Determine current distribution of bull trout reproduction and early rearing in potential bull trout streams in the Hood River basin. 5. Describe the migratory life history of Hood River bull trout and assess the potential impacts of Coe Diversion and two new falls on the Middle Fork Hood River (scoured by the November 2006 glacial outburst) on bull trout migrations. Title: Abundance, Life History, and Distribution of Bull Trout in the Hood River Basin: A Summary of Findings from 2006 to 2009 Information Reports number 2010-01 Abstract -- Bull trout have been adversely affected by many land, water, and fisheries management activities throughout the range of the species. Degraded and fragmented habitat and negative interactions with nonnative fishes have led to a decline in bull trout distribution and abundance, several local extirpations, and a federal listing in 1998 as a threatened species under the Endangered Species Act (USFWS 2002). Distribution and abundance of bull trout also have declined in Oregon, and most management units in the state are considered to be threatened by conservation risks (ODFW 2005). One of these at-risk management units exists in the Hood River basin (ODFW 2005). Bull trout in Hood River basin currently are thought to exist as two independent reproductive units (USFWS 2002), known as local populations (Rieman and McIntyre 1995). The Clear Branch local population was isolated from the rest of the basin by the construction of Clear Branch Dam in 1968. This dam provides limited downstream fish passage during periods of spill and no voluntary upstream passage. Bull trout in this population inhabit Laurance Lake reservoir and the tributaries Pinnacle Creek and upper Clear Branch, which flow into the reservoir. The Hood River local population is distributed in the mainstem Hood River, Middle Fork Hood River (Middle Fork), and a few Middle Fork tributaries. Fluvial migrants from Hood River basin also forage and winter in the Columbia River (Pribyl et al. 1996, Buchanan et al. 1997). Bull trout have been observed in the East and West Fork basins of the Hood River, but these sightings have been rare. Presently, there is little evidence to suggest local populations exist in these tributary basins (USFWS 2002, Reagan and Olsen 2008). The status of both local populations is extremely precarious. Threats that put the Clear Branch population at risk of extirpation include low abundance, negative interactions with illegally introduced smallmouth bass, isolation from upstream migration and immigration, and diminished spawning and rearing habitat (USFW 1998). The Hood River population also appears to be small and is affected by passage barriers, unscreened irrigation diversions, impaired water quality, and periodic debris flows during glacial outbursts (USFWS 1998). As mandated by their federally designated threatened status, recovery plans were drafted by the US Fish and Wildlife Service (USFWS) for each distinct population segment, including for Hood River bull trout in 2002. This draft plan listed four goals for recovery in this basin: 1) establish at least one more local population in addition to the two existing populations, 2) increase the estimated adult population in the basin to at least 500 individuals, 3) achieve a stable or increasing trend at the population recovery level for at least two generations (=10 years), and 4) improve habitat connectivity by addressing problems with passage and screening at diversions and seasonal water quality barriers (USFWS 2002). The recovery plan also sets out research and monitoring needs critical to the recovery of these populations. Needed are accurate adult abundance estimates; a standardized monitoring program; more life history information for each local population, including how Hood River bull trout use of the Columbia River and the effects of potential passage obstructions on movement; and more information on the threat posed to the Clear Branch population by the illegal introduction of smallmouth bass in Lake Laurance reservoir. The Oregon Department of Fish and Wildlife (ODFW), with the help of the USDA Forest Service (USFS), initiated a four-year study in 2006 seeking to address these needs by synthesizing available data and conducting further studies to improve our understanding of the abundance, life history, and potential limiting factors of bull trout in the Hood River recovery unit. This report describes our findings, summarizes previous studies in the context of new information, and recommends a standardized monitoring protocol and future research. Our specific study objectives were as follows: 1. Assess adult abundance of the Clear Branch local population and develop a monitoring protocol to track abundance trends that is statistically reliable, cost-effective, and that minimizes potential adverse effects on this small isolated population. 2. Describe the juvenile and adult life history patterns of the Clear Branch local population. 3. Assess the potential impact of smallmouth bass on bull trout in Laurance Lake reservoir. 4. Determine current distribution of bull trout reproduction and early rearing in potential bull trout streams in the Hood River basin. 5. Describe the migratory life history of Hood River bull trout and assess the potential impacts of Coe Diversion and two new falls on the Middle Fork Hood River (scoured by the November 2006 glacial outburst) on bull trout migrations. Close

• 53. [Article] OWEB Project Number 216-5042-12451 Phase IV - Wallowa Mountains Bull Trout Monitoring, Final Report

  Abstract -- Bull trout were listed as threatened under the Endangered Species Act in 1998 due to declining populations. Spawning survey data is important for determining relative abundance and distribution ...

  Citation × Citation Citation Abstract Copy Title: OWEB Project Number 216-5042-12451 Phase IV - Wallowa Mountains Bull Trout Monitoring, Final Report Abstract -- Bull trout were listed as threatened under the Endangered Species Act in 1998 due to declining populations. Spawning survey data is important for determining relative abundance and distribution trends in bull trout populations. Without adequate funding, it has been difficult to find sufficient numbers of experienced bull trout surveyors and packers for surveys in the back-country, and to obtain adequate supplies to get the work accomplished. OWEB funding supported the continued survey of bull trout spawning areas in years 2016 through 2018 in the Grande Ronde and Imnaha drainages of northeast Oregon. Surveys were conducted by fisheries consultants, the Service, Nez Perce Tribe, the Oregon Department of Fish and Wildlife, U.S. Forest Service, Freshwater Trust, Wallowa Resources, Anderson Perry, Inc., Grande Ronde Model Watershed, and volunteers. Timing of spawning, total redds, redd sizes, and redd locations are documented in the attached report. In 2016-2018, surveys were located on the Lostine and Imnaha Rivers, and Big Sheep and Bear Creeks. In addition, the Upper Minam and Wenaha were surveyed in 2018. OWEB funding helped to accomplish a total of 43.3, 41.1, and 71.7 stream miles surveyed in 2016, 2017, and 2018, respectively. Title: OWEB Project Number 216-5042-12451 Phase IV - Wallowa Mountains Bull Trout Monitoring, Final Report Abstract -- Bull trout were listed as threatened under the Endangered Species Act in 1998 due to declining populations. Spawning survey data is important for determining relative abundance and distribution trends in bull trout populations. Without adequate funding, it has been difficult to find sufficient numbers of experienced bull trout surveyors and packers for surveys in the back-country, and to obtain adequate supplies to get the work accomplished. OWEB funding supported the continued survey of bull trout spawning areas in years 2016 through 2018 in the Grande Ronde and Imnaha drainages of northeast Oregon. Surveys were conducted by fisheries consultants, the Service, Nez Perce Tribe, the Oregon Department of Fish and Wildlife, U.S. Forest Service, Freshwater Trust, Wallowa Resources, Anderson Perry, Inc., Grande Ronde Model Watershed, and volunteers. Timing of spawning, total redds, redd sizes, and redd locations are documented in the attached report. In 2016-2018, surveys were located on the Lostine and Imnaha Rivers, and Big Sheep and Bear Creeks. In addition, the Upper Minam and Wenaha were surveyed in 2018. OWEB funding helped to accomplish a total of 43.3, 41.1, and 71.7 stream miles surveyed in 2016, 2017, and 2018, respectively. Close

• 54. [Article] Lower Deschutes River Resident Trout Population Inventory 1997

  Abstract -- Abundance of redband trout in the Deschutes River has been estimated since 1971 with multiple mark-and-recapture methods. No estimates were done from 1988 to 1995. The 1997 estimates were done ...

  Citation × Citation Citation Abstract Copy Title: Lower Deschutes River Resident Trout Population Inventory 1997 Abstract -- Abundance of redband trout in the Deschutes River has been estimated since 1971 with multiple mark-and-recapture methods. No estimates were done from 1988 to 1995. The 1997 estimates were done using the same methods as those previously used and described by Schroeder (1989). Data discussed here were collected during February and March, 1997. Data Collection: Redband trout were captured using electrofishing gear mounted in a driftboat. Each side of the river was sampled, for the length of the study area, by collecting and recording captured redband trout in approximately 1.0 mile intervals. Redband trout 19.0 cm . or larger were tagged with sequentially numbered, colored floy tags. River mile, bank (east or west), species, sex and maturity, injuries or scars, tag number placed on fish, tag number of recaptured fish, and fork length to the nearest O .1 cm were recorded for all fish captured. Fish were returned to the river at the midpoint of the 1 mile sample area, using a jet boat to transport them back upstream. Title: Lower Deschutes River Resident Trout Population Inventory 1997 Abstract -- Abundance of redband trout in the Deschutes River has been estimated since 1971 with multiple mark-and-recapture methods. No estimates were done from 1988 to 1995. The 1997 estimates were done using the same methods as those previously used and described by Schroeder (1989). Data discussed here were collected during February and March, 1997. Data Collection: Redband trout were captured using electrofishing gear mounted in a driftboat. Each side of the river was sampled, for the length of the study area, by collecting and recording captured redband trout in approximately 1.0 mile intervals. Redband trout 19.0 cm . or larger were tagged with sequentially numbered, colored floy tags. River mile, bank (east or west), species, sex and maturity, injuries or scars, tag number placed on fish, tag number of recaptured fish, and fork length to the nearest O .1 cm were recorded for all fish captured. Fish were returned to the river at the midpoint of the 1 mile sample area, using a jet boat to transport them back upstream. Close

• 55. [Article] Factors that Influence Evolutionary Significant Unit Boundaries and Status Assessment in a Highly Polymorphic Species, Oncorhynchus mykiss, in the Columbia Basin

  Abstract -- The species Oncorhynchus mykiss expresses a complex array of life histories across much of its range as well as considerable geographic variation. Several subspecies have been proposed (Behnke ...

  Citation × Citation Citation Abstract Copy Title: Factors that Influence Evolutionary Significant Unit Boundaries and Status Assessment in a Highly Polymorphic Species, Oncorhynchus mykiss, in the Columbia Basin Abstract -- The species Oncorhynchus mykiss expresses a complex array of life histories across much of its range as well as considerable geographic variation. Several subspecies have been proposed (Behnke 1992), although none of them are formally recognized. Two of the proposed subspecies in North America include both trout and steelhead life histories: O.m. irideus, or Coastal rainbow/steelhead, and O.m. gairdneri, or Inland redband/steelhead. A third subspecies that includes an anadromous life history occurs in Asia, while all other North American subspecies are entirely trout. In the Pacific Northwest, the boundary between the coastal and inland subspecies occurs in the Columbia Gorge, where the Columbia River cuts through the Cascade Mountain Range. The steelhead and trout life histories within these two subspecies are genetically more similar to each other than to fish with the same life history in the other subspecies, indicating that the different life histories within a geographic area share an evolutionary origin (Allendorf 1975). Recent molecular systematic surveys suggest that this proposed taxonomic model of North American 0. mykiss subspecies may be over simplified and inaccurate (Currens 1997, Busby et al. 1996, F. Utter, U. of Washington); however, it remains the available model until final revisions to the taxonomy are adopted. The NOAA Fisheries Service (NMFS) further divided 0. mykiss into multiple "Evolutionarily Significant Units" (ESUs)(Waples 1991, 56 FR 58612, Waples 1995) for listing consideration under the federal Endangered Species Act (ESA). The ESA considers "distinct" populations of taxonmnic species to be "species" eligible for legal protection (16 U.S.C. 1532[161). NMFS adopted the concept of ESUs to serve as distinct population segments in their ESA listing decisions, along with specific criteria for defining them. Evidence for whether or not rainbow trout and steelhead are in the same ESUs is presented in this report according to the criteria provided by NMFS policy (56 FR 58612). The U.S. Fish and Wildlife Service (USFWS) likewise recognizes "Distinct Population Segments" (DPSs) that may be listed under ESA. The agencies share jurisdiction over 0. mykiss for ESA decisions, with NMFS overseeing the anadromous steelhead and USFWS overseeing the freshwater trout. NMFS has described ESUs for all Northwest steelhead, whether they have been listed or not (Busby et al. 1996); however, the USFWS has not generally described DPSs for Northwest 0. mykiss trout. During the original coast-wide status review of steelhead conducted in the 1990s, the NMFS Biological Review Team concluded that, in general, 0. mykiss trout are part of steelhead ESUs in cases where the two forms are sympatric and have an opportunity to interbreed (Busby et al. 1996). The review team was less conclusive about whether trout above artificial barriers were part of the ESUs. Trout that are sympatric with steelhead were also included in the ESUs by NMFS in the final listing determinations, but they were not listed. The steelhead in five of the ESUs in the Pacific Northwest were listed, including the Lower Columbia (63 FR 13347), Willamette, Mid-Columbia (64 FR 14517), Upper Columbia and Snake ESUs (62 FR 43937), all of which are in the Columbia Basin. As a result of two recent court cases NMFS is now reexamming the biological relationship between trout and steelhead populations in the ESUs where steelhead are listed and is reassessing the extinction risk of the whole ESUs from the perspective of both life histories. First, the Hogan decision in Oregon concluded that the Services may describe distinct population segments for ESA listing, but once ESUs or DPSs are described, the Services cannot list only part of one of one of them (Alsea Valley Alliance v. Evans [161 F.Supp. 2d 1154, D. Oreg. 2001]). So if NMFS finds trout to be part of an ESU along with steelhead, the Service cannot assess the extinction risk of only the steelhead in the ESU or list only the steelhead. Second, lawsuits in California about non­anadromous 0. mykiss upstream of man-made barriers (mostly impassible dams) made a similar argument, stating that such populations are related to the steelhead populations below the barriers and should be included in the ESUs and listed (EDC v. Evans, SACV- 00-1212-AHS (EEA), United States District Court, C.D. California). The purpose of this report is to provide more detailed information about trout and steelhead in the Columbia Basin listed ESUs. This report will address two major issues. The first section provides information that will be used to review whether trout and steelhead populations are biologically part the same ESUs, as defined by NMFS criteria. The second section provides information that will be used to review the extinction risks of entire ESUs if trout are considered along with steelhead. A similar, separate report is being prepared for California ESUs where steelhead are listed. Title: Factors that Influence Evolutionary Significant Unit Boundaries and Status Assessment in a Highly Polymorphic Species, Oncorhynchus mykiss, in the Columbia Basin Abstract -- The species Oncorhynchus mykiss expresses a complex array of life histories across much of its range as well as considerable geographic variation. Several subspecies have been proposed (Behnke 1992), although none of them are formally recognized. Two of the proposed subspecies in North America include both trout and steelhead life histories: O.m. irideus, or Coastal rainbow/steelhead, and O.m. gairdneri, or Inland redband/steelhead. A third subspecies that includes an anadromous life history occurs in Asia, while all other North American subspecies are entirely trout. In the Pacific Northwest, the boundary between the coastal and inland subspecies occurs in the Columbia Gorge, where the Columbia River cuts through the Cascade Mountain Range. The steelhead and trout life histories within these two subspecies are genetically more similar to each other than to fish with the same life history in the other subspecies, indicating that the different life histories within a geographic area share an evolutionary origin (Allendorf 1975). Recent molecular systematic surveys suggest that this proposed taxonomic model of North American 0. mykiss subspecies may be over simplified and inaccurate (Currens 1997, Busby et al. 1996, F. Utter, U. of Washington); however, it remains the available model until final revisions to the taxonomy are adopted. The NOAA Fisheries Service (NMFS) further divided 0. mykiss into multiple "Evolutionarily Significant Units" (ESUs)(Waples 1991, 56 FR 58612, Waples 1995) for listing consideration under the federal Endangered Species Act (ESA). The ESA considers "distinct" populations of taxonmnic species to be "species" eligible for legal protection (16 U.S.C. 1532[161). NMFS adopted the concept of ESUs to serve as distinct population segments in their ESA listing decisions, along with specific criteria for defining them. Evidence for whether or not rainbow trout and steelhead are in the same ESUs is presented in this report according to the criteria provided by NMFS policy (56 FR 58612). The U.S. Fish and Wildlife Service (USFWS) likewise recognizes "Distinct Population Segments" (DPSs) that may be listed under ESA. The agencies share jurisdiction over 0. mykiss for ESA decisions, with NMFS overseeing the anadromous steelhead and USFWS overseeing the freshwater trout. NMFS has described ESUs for all Northwest steelhead, whether they have been listed or not (Busby et al. 1996); however, the USFWS has not generally described DPSs for Northwest 0. mykiss trout. During the original coast-wide status review of steelhead conducted in the 1990s, the NMFS Biological Review Team concluded that, in general, 0. mykiss trout are part of steelhead ESUs in cases where the two forms are sympatric and have an opportunity to interbreed (Busby et al. 1996). The review team was less conclusive about whether trout above artificial barriers were part of the ESUs. Trout that are sympatric with steelhead were also included in the ESUs by NMFS in the final listing determinations, but they were not listed. The steelhead in five of the ESUs in the Pacific Northwest were listed, including the Lower Columbia (63 FR 13347), Willamette, Mid-Columbia (64 FR 14517), Upper Columbia and Snake ESUs (62 FR 43937), all of which are in the Columbia Basin. As a result of two recent court cases NMFS is now reexamming the biological relationship between trout and steelhead populations in the ESUs where steelhead are listed and is reassessing the extinction risk of the whole ESUs from the perspective of both life histories. First, the Hogan decision in Oregon concluded that the Services may describe distinct population segments for ESA listing, but once ESUs or DPSs are described, the Services cannot list only part of one of one of them (Alsea Valley Alliance v. Evans [161 F.Supp. 2d 1154, D. Oreg. 2001]). So if NMFS finds trout to be part of an ESU along with steelhead, the Service cannot assess the extinction risk of only the steelhead in the ESU or list only the steelhead. Second, lawsuits in California about non­anadromous 0. mykiss upstream of man-made barriers (mostly impassible dams) made a similar argument, stating that such populations are related to the steelhead populations below the barriers and should be included in the ESUs and listed (EDC v. Evans, SACV- 00-1212-AHS (EEA), United States District Court, C.D. California). The purpose of this report is to provide more detailed information about trout and steelhead in the Columbia Basin listed ESUs. This report will address two major issues. The first section provides information that will be used to review whether trout and steelhead populations are biologically part the same ESUs, as defined by NMFS criteria. The second section provides information that will be used to review the extinction risks of entire ESUs if trout are considered along with steelhead. A similar, separate report is being prepared for California ESUs where steelhead are listed. Close

• 56. [Article] Abundance, distribution, and migratory behavior of coastal cutthroat trout in two lower Columbia River tributaries

  Abstract -- Coastal cutthroat trout (Oncorhynchus clarki clarki) exhibit multiple life history types characterized by diverse migratory strategies, including anadromous, potomodromous, and freshwater resident ...

  Citation × Citation Citation Abstract Copy Title: Abundance, distribution, and migratory behavior of coastal cutthroat trout in two lower Columbia River tributaries Abstract -- Coastal cutthroat trout (Oncorhynchus clarki clarki) exhibit multiple life history types characterized by diverse migratory strategies, including anadromous, potomodromous, and freshwater resident forms. The factors contributing to life history variation within populations are not well understood, but probably are not strictly genetic (e.g. Johnson et al, in review). Variation in migration tendency within cutthroat populations may result from phenotype plasticity, influenced by density, frequency, or condition dependent processes (Hendry et al. 2004). For example, an individual cutthroat’s choice to migrate at a given time or age may be a response to environmental conditions mediated by a genetically determined reaction norm (Hutchings 2004). This report summarizes a study undertaken to describe the expression of migratory behavior within coastal cutthroat trout populations, the relationship among migratory and non-migratory individuals, and the implications of life history diversity for management of cutthroat trout in tributaries of the lower Columbia River. The relationship between resident and migratory populations (or resident and migratory individuals within populations) is of central importance for management of coastal cutthroat trout. In the lower Columbia River and southwest Washington State a proposed rule to list anadromous cutthroat as threatened under the federal Endangered Species Act (ESA) was withdrawn after the US Fish and Wildlife Service (USFWS) decided during its review process to include resident and anadromous forms in the same Distinct Population Segment (DPS). Debate over proposed ESA listing highlighted a general lack of knowledge about coastal cutthroat trout life history, relationships between resident and migratory forms, and estuarine habitat use in the lower Columbia River. In 2009, the decision not to list the DPS as threatened was remanded to the USFWS on the grounds that the Service had not adequately considered whether marine and estuarine habitats formed a significant portion of the range of the DPS (USFWS 2009). We evaluated the distribution and abundance of coastal cutthroat trout in Big Creek and Bear Creek, two tributaries that join the Columbia River estuary from the south (Oregon) side roughly 30 kilometers from the ocean, and monitored the migratory behavior of cutthroat that emigrated from these streams and entered the Columbia River estuary. Big Creek is an interesting system because a fish weir and diversion dam at an ODFW hatchery, established in 1941 and refurbished in 1957, prevent cutthroat trout from passing upstream, isolating the cutthroat spawning population above the hatchery. Despite this barrier to upstream migration, offspring of resident cutthroat in the upper watershed continue to “smolt” and migrate downstream past the barrier. We were interested in the fate of these fish and their contribution to the adult population. Bear Creek, on the other hand, has always had full access for anadromous cutthroat through much of its drainage. These two systems permit a comparison of life history characteristics, migration, and survival of coastal cutthroat rearing in streams above and below migration barriers, and provide study sites in Oregon to compliment research by USFWS of coastal cutthroat migration behavior in tributaries entering the estuary from the north side of the Columbia River (USFWS 2008; and see Hudson et al. 2008; Johnson 2008; Zydlewski et al. 2008). A major objective of our work in Big Creek and Bear Creek was to increase understanding of coastal cutthroat trout biology and the relationship between resident and migratory cutthroat in lower Columbia tributaries. Additionally, we sought to document habitat use in the Columbia River estuary by migrant cutthroat. Our specific objectives were to: • Estimate abundance of coastal cutthroat trout in Big Creek (above hatchery barrier) and Bear Creek (above and below a large dam) • Quantify the proportions of the cutthroat populations that are migratory, identify which individuals migrate and describe the timing of migration • Describe habitats used by anadromous migrants and characterize migration behavior within the Columbia River estuary • Measure estuarine/marine survival of anadromous individuals and document return to natal streams Title: Abundance, distribution, and migratory behavior of coastal cutthroat trout in two lower Columbia River tributaries Abstract -- Coastal cutthroat trout (Oncorhynchus clarki clarki) exhibit multiple life history types characterized by diverse migratory strategies, including anadromous, potomodromous, and freshwater resident forms. The factors contributing to life history variation within populations are not well understood, but probably are not strictly genetic (e.g. Johnson et al, in review). Variation in migration tendency within cutthroat populations may result from phenotype plasticity, influenced by density, frequency, or condition dependent processes (Hendry et al. 2004). For example, an individual cutthroat’s choice to migrate at a given time or age may be a response to environmental conditions mediated by a genetically determined reaction norm (Hutchings 2004). This report summarizes a study undertaken to describe the expression of migratory behavior within coastal cutthroat trout populations, the relationship among migratory and non-migratory individuals, and the implications of life history diversity for management of cutthroat trout in tributaries of the lower Columbia River. The relationship between resident and migratory populations (or resident and migratory individuals within populations) is of central importance for management of coastal cutthroat trout. In the lower Columbia River and southwest Washington State a proposed rule to list anadromous cutthroat as threatened under the federal Endangered Species Act (ESA) was withdrawn after the US Fish and Wildlife Service (USFWS) decided during its review process to include resident and anadromous forms in the same Distinct Population Segment (DPS). Debate over proposed ESA listing highlighted a general lack of knowledge about coastal cutthroat trout life history, relationships between resident and migratory forms, and estuarine habitat use in the lower Columbia River. In 2009, the decision not to list the DPS as threatened was remanded to the USFWS on the grounds that the Service had not adequately considered whether marine and estuarine habitats formed a significant portion of the range of the DPS (USFWS 2009). We evaluated the distribution and abundance of coastal cutthroat trout in Big Creek and Bear Creek, two tributaries that join the Columbia River estuary from the south (Oregon) side roughly 30 kilometers from the ocean, and monitored the migratory behavior of cutthroat that emigrated from these streams and entered the Columbia River estuary. Big Creek is an interesting system because a fish weir and diversion dam at an ODFW hatchery, established in 1941 and refurbished in 1957, prevent cutthroat trout from passing upstream, isolating the cutthroat spawning population above the hatchery. Despite this barrier to upstream migration, offspring of resident cutthroat in the upper watershed continue to “smolt” and migrate downstream past the barrier. We were interested in the fate of these fish and their contribution to the adult population. Bear Creek, on the other hand, has always had full access for anadromous cutthroat through much of its drainage. These two systems permit a comparison of life history characteristics, migration, and survival of coastal cutthroat rearing in streams above and below migration barriers, and provide study sites in Oregon to compliment research by USFWS of coastal cutthroat migration behavior in tributaries entering the estuary from the north side of the Columbia River (USFWS 2008; and see Hudson et al. 2008; Johnson 2008; Zydlewski et al. 2008). A major objective of our work in Big Creek and Bear Creek was to increase understanding of coastal cutthroat trout biology and the relationship between resident and migratory cutthroat in lower Columbia tributaries. Additionally, we sought to document habitat use in the Columbia River estuary by migrant cutthroat. Our specific objectives were to: • Estimate abundance of coastal cutthroat trout in Big Creek (above hatchery barrier) and Bear Creek (above and below a large dam) • Quantify the proportions of the cutthroat populations that are migratory, identify which individuals migrate and describe the timing of migration • Describe habitats used by anadromous migrants and characterize migration behavior within the Columbia River estuary • Measure estuarine/marine survival of anadromous individuals and document return to natal streams Close

• 57. [Article] Life history variability, habitat use, and migratory behavior of coastal cutthroat trout in the Salmon River, Oregon Annual Progress Report

  Abstract -- A previous study characterized a diversity of life history strategies of coastal cutthroat trout (Oncorhynchus clarki clarki) in Salmon River (Krentz 2007). In contrast to life history patterns ...

  Citation × Citation Citation Abstract Copy Title: Life history variability, habitat use, and migratory behavior of coastal cutthroat trout in the Salmon River, Oregon Annual Progress Report Abstract -- A previous study characterized a diversity of life history strategies of coastal cutthroat trout (Oncorhynchus clarki clarki) in Salmon River (Krentz 2007). In contrast to life history patterns in other Oregon estuaries (Giger 1972), cutthroat trout of all sizes resided for extended periods of time throughout the available channel habitats in Salmon River estuary. The estuarine resident population appeared to represent a significant portion of the migratory individuals, and included all age classes. Estuary growth was similar to that of their ocean migrant counterparts, and survival in the estuary was high. Because cutthroat were collected and marked primarily within the estuary (Krentz 2007), it is unclear what portion of the migrant population remained in the estuary relative to the ocean migrants, or whether the tagged group was representative of the anadromous populations. The current study was designed to track a representative sample of the downstream migrant population, and assess the relative success (survival) of the estuary and ocean migrants. Similar studies in the Columbia River documented directed and rapid migration through the estuary (Zydlewski et al. 2008, Hering et al. 2009). With one exception, cutthroat trout were not observed to rear in the estuary. In addition, many fish disappeared before reaching the ocean and few of the ocean migrants returned to the site of release. In this study we replicated the study design used in the Columbia River studies to allow comparison of estuary migration and rearing strategies between the two estuaries. The primary objective of our work in the Salmon River was to increase understanding of coastal cutthroat trout biology and the relationship between resident and migratory cutthroat. Study objectives were to: 1. Estimate the distribution and abundance of coastal cutthroat trout in the Salmon River watershed 2. Quantify the proportions of the cutthroat populations that are migratory, identify which individuals migrate and describe the timing of migration 3. Describe habitats used by anadromous migrants and characterize migration behavior within the Salmon River estuary 4. Estimate growth rate of estuary resident cutthroat 5. Estimate estuarine/marine survival of anadromous individuals and document return to estuary 6. Compare migratory patterns and survival with cutthroat in the Columbia River In this report, we will discuss migration patterns, habitat use, and growth. The study will be continued in 2010 to meet objectives (1), (2), and (6), and provide more detail to objectives (3), (4), and (5). Title: Life history variability, habitat use, and migratory behavior of coastal cutthroat trout in the Salmon River, Oregon Annual Progress Report Abstract -- A previous study characterized a diversity of life history strategies of coastal cutthroat trout (Oncorhynchus clarki clarki) in Salmon River (Krentz 2007). In contrast to life history patterns in other Oregon estuaries (Giger 1972), cutthroat trout of all sizes resided for extended periods of time throughout the available channel habitats in Salmon River estuary. The estuarine resident population appeared to represent a significant portion of the migratory individuals, and included all age classes. Estuary growth was similar to that of their ocean migrant counterparts, and survival in the estuary was high. Because cutthroat were collected and marked primarily within the estuary (Krentz 2007), it is unclear what portion of the migrant population remained in the estuary relative to the ocean migrants, or whether the tagged group was representative of the anadromous populations. The current study was designed to track a representative sample of the downstream migrant population, and assess the relative success (survival) of the estuary and ocean migrants. Similar studies in the Columbia River documented directed and rapid migration through the estuary (Zydlewski et al. 2008, Hering et al. 2009). With one exception, cutthroat trout were not observed to rear in the estuary. In addition, many fish disappeared before reaching the ocean and few of the ocean migrants returned to the site of release. In this study we replicated the study design used in the Columbia River studies to allow comparison of estuary migration and rearing strategies between the two estuaries. The primary objective of our work in the Salmon River was to increase understanding of coastal cutthroat trout biology and the relationship between resident and migratory cutthroat. Study objectives were to: 1. Estimate the distribution and abundance of coastal cutthroat trout in the Salmon River watershed 2. Quantify the proportions of the cutthroat populations that are migratory, identify which individuals migrate and describe the timing of migration 3. Describe habitats used by anadromous migrants and characterize migration behavior within the Salmon River estuary 4. Estimate growth rate of estuary resident cutthroat 5. Estimate estuarine/marine survival of anadromous individuals and document return to estuary 6. Compare migratory patterns and survival with cutthroat in the Columbia River In this report, we will discuss migration patterns, habitat use, and growth. The study will be continued in 2010 to meet objectives (1), (2), and (6), and provide more detail to objectives (3), (4), and (5). Close

• 58. [Article] Chewaucan River Fish Management Plan 1983.pdf

  Abstract -- The Chewaucan River is the largest stream in the Goose and Summer lakes basin. It originates on the east slopes of Gearhart Mountain and Deadhorse and Coleman rims in the eastern Cascades and ...

  Citation × Citation Citation Abstract Copy Title: Chewaucan River Fish Management Plan 1983.pdf Abstract -- The Chewaucan River is the largest stream in the Goose and Summer lakes basin. It originates on the east slopes of Gearhart Mountain and Deadhorse and Coleman rims in the eastern Cascades and flows northerly and then southeasterly 52 miles to terminate in Abert Lake. Fish management and public use opportunities in this section are limited. The 25 miles of river upstream from Paisley is 62 percent federally owned, with the remainder in private ownership. It contains native redband and hatchery rainbow trout, and provides an important trout fishery. The stream has been managed primarily for hatchery fish with no special angling regulations imposed to protect wild fish populations. This plan addresses only the portion of the Chewaucan River upstream from Paisley.In September 1983, the Oregon Fish and Wildlife Commission accepted the Department's alternative to manage the Chewaucan River above Paisley for wild and hatchery trout. Title: Chewaucan River Fish Management Plan 1983.pdf Abstract -- The Chewaucan River is the largest stream in the Goose and Summer lakes basin. It originates on the east slopes of Gearhart Mountain and Deadhorse and Coleman rims in the eastern Cascades and flows northerly and then southeasterly 52 miles to terminate in Abert Lake. Fish management and public use opportunities in this section are limited. The 25 miles of river upstream from Paisley is 62 percent federally owned, with the remainder in private ownership. It contains native redband and hatchery rainbow trout, and provides an important trout fishery. The stream has been managed primarily for hatchery fish with no special angling regulations imposed to protect wild fish populations. This plan addresses only the portion of the Chewaucan River upstream from Paisley.In September 1983, the Oregon Fish and Wildlife Commission accepted the Department's alternative to manage the Chewaucan River above Paisley for wild and hatchery trout. Close

• 59. [Article] Management Plan of Hagg Reservoir 1986

  Abstract -- Hagg Reservoir is a Bureau of Reclamation (BOR) multi purpose reservoir on Scoggins Creek, Washington County, 6 miles southwest of Forest Grove. It was constructed in 1974 and filled the first ...

  Citation × Citation Citation Abstract Copy Title: Management Plan of Hagg Reservoir 1986 Abstract -- Hagg Reservoir is a Bureau of Reclamation (BOR) multi purpose reservoir on Scoggins Creek, Washington County, 6 miles southwest of Forest Grove. It was constructed in 1974 and filled the first time in 1975. The Department of Fish and Wildlife entered into an agreement with Washington County and BOR in 1973 to provide fishery management. One hatchery pond was constructed to rear trout; trout to compensate for those lost through the unscreened outlet, and paid for by Washington County. Anadromous fish trapping facilities were constructed below the dam, adjacent to the spillway. Washington County maintains public facilities around the reservoir and they are heavily used. Other major recreational activities, in addition to angling, are boating and swimming. BOR information from 1984 shows about 539,000 visitors. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Hagg Reservoir for hatchery trout and wild hatchery warmwater species. Title: Management Plan of Hagg Reservoir 1986 Abstract -- Hagg Reservoir is a Bureau of Reclamation (BOR) multi purpose reservoir on Scoggins Creek, Washington County, 6 miles southwest of Forest Grove. It was constructed in 1974 and filled the first time in 1975. The Department of Fish and Wildlife entered into an agreement with Washington County and BOR in 1973 to provide fishery management. One hatchery pond was constructed to rear trout; trout to compensate for those lost through the unscreened outlet, and paid for by Washington County. Anadromous fish trapping facilities were constructed below the dam, adjacent to the spillway. Washington County maintains public facilities around the reservoir and they are heavily used. Other major recreational activities, in addition to angling, are boating and swimming. BOR information from 1984 shows about 539,000 visitors. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Hagg Reservoir for hatchery trout and wild hatchery warmwater species. Close

• 60. [Article] Klamath River (Below Keno Dam) Trout Management Program Including Spencer Creek 1978

  Abstract -- The Klamath River is an extremely productive stream, but below Keno Dam it suffers from water fluctuation, poor water quality, lack of spawning gravel, and competition. The stream below Keno ...

  Citation × Citation Citation Abstract Copy Title: Klamath River (Below Keno Dam) Trout Management Program Including Spencer Creek 1978 Abstract -- The Klamath River is an extremely productive stream, but below Keno Dam it suffers from water fluctuation, poor water quality, lack of spawning gravel, and competition. The stream below Keno Dam and below the Boyle powerplant fluctuates from power production and irrigation manipulation. The five-mile section immediately downstream from Boyle Dam is the only portion that remains relatively stable. Low quantitites of dissolved oxygen and high water temperatures are chronic problems in the Keno area and adversely affect the river downstream. Most spawning gravel is located in Spencer Creek. The main river has a poor gravel supply. Competition from the various fish species in Boyle Reservoir has undoubtedly impacted the trout population and the spawning run into Spencer Creek. The Klamath River may be the most productive stream in Oregon. Although it has limitations on its production capabilities, it will be managed for wild trout only. Title: Klamath River (Below Keno Dam) Trout Management Program Including Spencer Creek 1978 Abstract -- The Klamath River is an extremely productive stream, but below Keno Dam it suffers from water fluctuation, poor water quality, lack of spawning gravel, and competition. The stream below Keno Dam and below the Boyle powerplant fluctuates from power production and irrigation manipulation. The five-mile section immediately downstream from Boyle Dam is the only portion that remains relatively stable. Low quantitites of dissolved oxygen and high water temperatures are chronic problems in the Keno area and adversely affect the river downstream. Most spawning gravel is located in Spencer Creek. The main river has a poor gravel supply. Competition from the various fish species in Boyle Reservoir has undoubtedly impacted the trout population and the spawning run into Spencer Creek. The Klamath River may be the most productive stream in Oregon. Although it has limitations on its production capabilities, it will be managed for wild trout only. Close

• 61. [Article] Fish Management Plan Little Deschutes River Above Gilchrist Mill Pond 1979

  Abstract -- The Little Deschutes River is a major tributary to, and enters, the Deschutes at RM 193 above Bend. This management plan only covers the system above Gilchrist because we have little opportunity ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Little Deschutes River Above Gilchrist Mill Pond 1979 Abstract -- The Little Deschutes River is a major tributary to, and enters, the Deschutes at RM 193 above Bend. This management plan only covers the system above Gilchrist because we have little opportunity to create a successful trout program downstream due to extensive populations of rough fish and stunted brown bullheads. A proposed chemical treatment program in 1973 below Gilchrist failed to get total landowner approval. Large populations of small brown trout are present in the Little Deschutes where good habitat exists. Growth is slow and angling pressure and harvest is light. No special angling regulations are in effect at present. In July 1979, the Fish and Wildlife Commission accepted the Department's recommendation to continue managing the Little Deschutes River above Gilchrist Mill Pond for wild trout. Title: Fish Management Plan Little Deschutes River Above Gilchrist Mill Pond 1979 Abstract -- The Little Deschutes River is a major tributary to, and enters, the Deschutes at RM 193 above Bend. This management plan only covers the system above Gilchrist because we have little opportunity to create a successful trout program downstream due to extensive populations of rough fish and stunted brown bullheads. A proposed chemical treatment program in 1973 below Gilchrist failed to get total landowner approval. Large populations of small brown trout are present in the Little Deschutes where good habitat exists. Growth is slow and angling pressure and harvest is light. No special angling regulations are in effect at present. In July 1979, the Fish and Wildlife Commission accepted the Department's recommendation to continue managing the Little Deschutes River above Gilchrist Mill Pond for wild trout. Close

• 62. [Article] Hood River, Wasco and Sherman Counties Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1970

  Abstract -- The area covered in this report includes Hood River, Wasco and Sherman Counties. Located in the north central portion of the state, the counties encompass an area of approximately 3,762 square ...

  Citation × Citation Citation Abstract Copy Title: Hood River, Wasco and Sherman Counties Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1970 Abstract -- The area covered in this report includes Hood River, Wasco and Sherman Counties. Located in the north central portion of the state, the counties encompass an area of approximately 3,762 square miles. The terrain varies considerably from the alpine and timbered heights along the Cascade Summit to the flat arid sagelands covering the eastern portions of the area. The fishery consists of both trout and warm-water fish. Brook and rainbow trout are present in the higher mountain lakes, and warm-water fishes and rainbow trout in the reservoirs of the lower arid lands to the east. This report details a plan that we hope can be followed to solve the access problems of the Hood River, Wasco and Sherman Counties lakes and reservoirs. Title: Hood River, Wasco and Sherman Counties Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1970 Abstract -- The area covered in this report includes Hood River, Wasco and Sherman Counties. Located in the north central portion of the state, the counties encompass an area of approximately 3,762 square miles. The terrain varies considerably from the alpine and timbered heights along the Cascade Summit to the flat arid sagelands covering the eastern portions of the area. The fishery consists of both trout and warm-water fish. Brook and rainbow trout are present in the higher mountain lakes, and warm-water fishes and rainbow trout in the reservoirs of the lower arid lands to the east. This report details a plan that we hope can be followed to solve the access problems of the Hood River, Wasco and Sherman Counties lakes and reservoirs. Close

• 63. [Article] Diamond Lake Creel Survey - 2002

  Abstract -- Diamond Lake Creel Survey for 2002 - estimated catch of rainbow trout and Chinook salmon and angling effort.

  Citation × Citation Citation Abstract Copy Title: Diamond Lake Creel Survey - 2002 Abstract -- Diamond Lake Creel Survey for 2002 - estimated catch of rainbow trout and Chinook salmon and angling effort. Title: Diamond Lake Creel Survey - 2002 Abstract -- Diamond Lake Creel Survey for 2002 - estimated catch of rainbow trout and Chinook salmon and angling effort. Close

• 64. [Article] Estimated Catch in Foster Reservoir 2001-2003

  Abstract -- Estimated Catch in Foster Reservoir 2001-2003 for trout, Kokanee, and steelhead

  Citation × Citation Citation Abstract Copy Title: Estimated Catch in Foster Reservoir 2001-2003 Abstract -- Estimated Catch in Foster Reservoir 2001-2003 for trout, Kokanee, and steelhead Title: Estimated Catch in Foster Reservoir 2001-2003 Abstract -- Estimated Catch in Foster Reservoir 2001-2003 for trout, Kokanee, and steelhead Close

• 65. [Article] Baker County Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1969

  Abstract -- Baker County, located in nortbeastern Oregon, encompasses an area of approximately 3,100 square miles. The terrain varies considerably from the high peaks of the Eagle Cap Wilderness Area in ...

  Citation × Citation Citation Abstract Copy Title: Baker County Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1969 Abstract -- Baker County, located in nortbeastern Oregon, encompasses an area of approximately 3,100 square miles. The terrain varies considerably from the high peaks of the Eagle Cap Wilderness Area in the north to the arid sagelands in the southern part of the county. Four types of angling waters are found within the county. The types are: (1) streams both large and small throughout the county, (2) natural lakes in the mountainous areas, (3) reservoirs and impoundments developed for irrigation or power production and (4) small ponds constructed or maintained specifically for fisheries management. The fishery consists of trout and warm-water fishes. Both brook and rainbow trout are available in the high mountain lakes. The reservoirs provide angling for both trout and warm-water fishes and the smaller ponds are stocked with rainbow trout. Angling in early spring is quite intense on the small ponds and larger reservoirs as the higher lakes are still snowbound and the streams are muddy from the spring runoff. During the summer and fall the angling pressure shifts to the mountain lakes and streams and decreases on the ponds and larger low elevation reservoirs. Title: Baker County Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1969 Abstract -- Baker County, located in nortbeastern Oregon, encompasses an area of approximately 3,100 square miles. The terrain varies considerably from the high peaks of the Eagle Cap Wilderness Area in the north to the arid sagelands in the southern part of the county. Four types of angling waters are found within the county. The types are: (1) streams both large and small throughout the county, (2) natural lakes in the mountainous areas, (3) reservoirs and impoundments developed for irrigation or power production and (4) small ponds constructed or maintained specifically for fisheries management. The fishery consists of trout and warm-water fishes. Both brook and rainbow trout are available in the high mountain lakes. The reservoirs provide angling for both trout and warm-water fishes and the smaller ponds are stocked with rainbow trout. Angling in early spring is quite intense on the small ponds and larger reservoirs as the higher lakes are still snowbound and the streams are muddy from the spring runoff. During the summer and fall the angling pressure shifts to the mountain lakes and streams and decreases on the ponds and larger low elevation reservoirs. Close

• 66. [Article] Temperature Monitoring and Modeling of the Mary's River Watershed

  Abstract -- Stream temperatures were monitored at 42 sites in the summer of 1998 and at 26 sites in the summer of 1999 throughout the Mary's River watershed. Segments of streams were identified where reduced ...

  Citation × Citation Citation Abstract Copy Title: Temperature Monitoring and Modeling of the Mary's River Watershed Abstract -- Stream temperatures were monitored at 42 sites in the summer of 1998 and at 26 sites in the summer of 1999 throughout the Mary's River watershed. Segments of streams were identified where reduced temperatures would benefit native cutthroat trout. Computer modeling of riparian shade enhancement predicted temperature reductions. Title: Temperature Monitoring and Modeling of the Mary's River Watershed Abstract -- Stream temperatures were monitored at 42 sites in the summer of 1998 and at 26 sites in the summer of 1999 throughout the Mary's River watershed. Segments of streams were identified where reduced temperatures would benefit native cutthroat trout. Computer modeling of riparian shade enhancement predicted temperature reductions. Close

• 67. [Article] Trout Creek Watershed Assessment, Part 2: Condition Evaluation and Action Opportunities

  Abstract -- This document summarizes "Trout Creek Watershed Assessment: Findings" and evaluates opportunities for voluntary actions to improve watershed conditions. Information from the assessment is used ...

  Citation × Citation Citation Abstract Copy Title: Trout Creek Watershed Assessment, Part 2: Condition Evaluation and Action Opportunities Abstract -- This document summarizes "Trout Creek Watershed Assessment: Findings" and evaluates opportunities for voluntary actions to improve watershed conditions. Information from the assessment is used to identify fish habitat and water quality issues for general areas of the watershed. Title: Trout Creek Watershed Assessment, Part 2: Condition Evaluation and Action Opportunities Abstract -- This document summarizes "Trout Creek Watershed Assessment: Findings" and evaluates opportunities for voluntary actions to improve watershed conditions. Information from the assessment is used to identify fish habitat and water quality issues for general areas of the watershed. Close

• 68. [Article] Fish Management Plan Cottage Grove Reservoir

  Abstract -- Cottage Grove Reservoir is located at RM 29.5 on the Coast Fork Willamette River about 25 miles south of Eugene and six miles south of Cottage Grove in Lane County, Oregon (Figure 1). It is ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Cottage Grove Reservoir Abstract -- Cottage Grove Reservoir is located at RM 29.5 on the Coast Fork Willamette River about 25 miles south of Eugene and six miles south of Cottage Grove in Lane County, Oregon (Figure 1). It is one of 13 Corps of Engineers multipurpose water projects in the Willamette Valley. Water was first impounded there in 1942. There is no fish ladder in the dam. In October, 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Cottage Grove Reservoir for wild warmwater game fish and hatchery trout. Title: Fish Management Plan Cottage Grove Reservoir Abstract -- Cottage Grove Reservoir is located at RM 29.5 on the Coast Fork Willamette River about 25 miles south of Eugene and six miles south of Cottage Grove in Lane County, Oregon (Figure 1). It is one of 13 Corps of Engineers multipurpose water projects in the Willamette Valley. Water was first impounded there in 1942. There is no fish ladder in the dam. In October, 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Cottage Grove Reservoir for wild warmwater game fish and hatchery trout. Close

• 69. [Article] Crescent Lake Fish Management Plan

  Abstract -- Crescent Lake lies just east of the summit of the Cascade Range and south of Highway 58 in northern Klamath County. Crescent Lake is a natural lake that has been enlarged by damming the outlet, ...

  Citation × Citation Citation Abstract Copy Title: Crescent Lake Fish Management Plan Abstract -- Crescent Lake lies just east of the summit of the Cascade Range and south of Highway 58 in northern Klamath County. Crescent Lake is a natural lake that has been enlarged by damming the outlet, Crescent Creek, to provide additional storage. Tumalo Irrigation District holds water rights for 86,860 acre feet of water which is used in the Bend area. In October 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Crescent Lake for wild and hatchery trout. Title: Crescent Lake Fish Management Plan Abstract -- Crescent Lake lies just east of the summit of the Cascade Range and south of Highway 58 in northern Klamath County. Crescent Lake is a natural lake that has been enlarged by damming the outlet, Crescent Creek, to provide additional storage. Tumalo Irrigation District holds water rights for 86,860 acre feet of water which is used in the Bend area. In October 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Crescent Lake for wild and hatchery trout. Close

• 70. [Article] Fish Management Plan Dorena Reservoir 1986

  Abstract -- Dorena Reservoir is located at RM 7.5 on Row River (Coast Fork Willamette drainage) about 22 miles south of Eugene and 5 miles south of Cottage Grove in Lane County, Oregon. It is one of 13 ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Dorena Reservoir 1986 Abstract -- Dorena Reservoir is located at RM 7.5 on Row River (Coast Fork Willamette drainage) about 22 miles south of Eugene and 5 miles south of Cottage Grove in Lane County, Oregon. It is one of 13 Corps of Engineers multipurpose water projects in the Willamette Valley. Water was first impounded in 1949. There are no turbines or a fish ladder in the dam. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Dorena Reservoir primarily for wild and hatchery warmwater game fish and hatchery trout. Title: Fish Management Plan Dorena Reservoir 1986 Abstract -- Dorena Reservoir is located at RM 7.5 on Row River (Coast Fork Willamette drainage) about 22 miles south of Eugene and 5 miles south of Cottage Grove in Lane County, Oregon. It is one of 13 Corps of Engineers multipurpose water projects in the Willamette Valley. Water was first impounded in 1949. There are no turbines or a fish ladder in the dam. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Dorena Reservoir primarily for wild and hatchery warmwater game fish and hatchery trout. Close

• 71. [Article] Fish Management Plan Mann Lake 1980

  Abstract -- Mann Lake is a shallow, productive, natural lake on the east side of Steens Mountain, about 38 airline mi north of Fields and 65 airline mi southeast of Burns at an elevation of 4,200 ft. Road ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Mann Lake 1980 Abstract -- Mann Lake is a shallow, productive, natural lake on the east side of Steens Mountain, about 38 airline mi north of Fields and 65 airline mi southeast of Burns at an elevation of 4,200 ft. Road access is via east Steens County Road. The Bureau of Land Management (BLM) manages the land surrounding the lake, except for a small tract on the southern end. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Mann Lake with hatchery cutthroat trout. They also adopted regulations restricting terminal tackle to artificial flies and lures with barbless hooks and a daily bag of 2 trout, minimum length of 18 inches. Title: Fish Management Plan Mann Lake 1980 Abstract -- Mann Lake is a shallow, productive, natural lake on the east side of Steens Mountain, about 38 airline mi north of Fields and 65 airline mi southeast of Burns at an elevation of 4,200 ft. Road access is via east Steens County Road. The Bureau of Land Management (BLM) manages the land surrounding the lake, except for a small tract on the southern end. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Mann Lake with hatchery cutthroat trout. They also adopted regulations restricting terminal tackle to artificial flies and lures with barbless hooks and a daily bag of 2 trout, minimum length of 18 inches. Close

• 72. [Article] Coos River Basin Master Plan for Angler Access and Associated Recreational Uses 1967

  Abstract -- The Coos River system is composed of the Coos River and the Millicoma River. The Coos drains the southeast portion of the basin and the Millicoma the northeast. The two rivers fork at river ...

  Citation × Citation Citation Abstract Copy Title: Coos River Basin Master Plan for Angler Access and Associated Recreational Uses 1967 Abstract -- The Coos River system is composed of the Coos River and the Millicoma River. The Coos drains the southeast portion of the basin and the Millicoma the northeast. The two rivers fork at river mile 5.5 above its confluence with Coos Bay at Eastside. The principle fisheries in the Coos system are winter steelhead, striped bass, shad, coho salmon, sea-run cutthroat trout and rainbow trout. Title: Coos River Basin Master Plan for Angler Access and Associated Recreational Uses 1967 Abstract -- The Coos River system is composed of the Coos River and the Millicoma River. The Coos drains the southeast portion of the basin and the Millicoma the northeast. The two rivers fork at river mile 5.5 above its confluence with Coos Bay at Eastside. The principle fisheries in the Coos system are winter steelhead, striped bass, shad, coho salmon, sea-run cutthroat trout and rainbow trout. Close

• 73. [Article] Coquille River Basin Master Plan for Angler Access and Associated Recreational Uses 1966

  Abstract -- The Coquille River system is comparable to some of the better coastal streams in terms of angling success for salmon and steelhead. For catch success by anglers, the winter steelhead fishery ...

  Citation × Citation Citation Abstract Copy Title: Coquille River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Coquille River system is comparable to some of the better coastal streams in terms of angling success for salmon and steelhead. For catch success by anglers, the winter steelhead fishery ranks as one of the best in the State and near the top for fall salmon. The Coquille River also supports active fisheries for sea-run cutthroat trout in and near tidewater and resident trout in the upper reaches. There is also a growing sport fishery for shad. Title: Coquille River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Coquille River system is comparable to some of the better coastal streams in terms of angling success for salmon and steelhead. For catch success by anglers, the winter steelhead fishery ranks as one of the best in the State and near the top for fall salmon. The Coquille River also supports active fisheries for sea-run cutthroat trout in and near tidewater and resident trout in the upper reaches. There is also a growing sport fishery for shad. Close

• 74. [Article] 2001-2012 Crane Prairie population assessment

  Abstract -- Crane Prairie is a large shallow reservoir fed by the Deschutes River, Quinn River, Cultus River, and Cultus Creek. When the reservoir was built in 1922 it engulfed a large meadow and forest ...

  Citation × Citation Citation Abstract Copy Title: 2001-2012 Crane Prairie population assessment Abstract -- Crane Prairie is a large shallow reservoir fed by the Deschutes River, Quinn River, Cultus River, and Cultus Creek. When the reservoir was built in 1922 it engulfed a large meadow and forest area, leaving behind large areas of snags and fallen timber providing habitat for fish and insects. Bull trout, mountain whitefish, and redband trout were native to the reservoir when it was created, but bull trout were extirpated by 1955 due to stocking of non-native fish, loss of spawning habitat and fish passage, and selective management. The reservoir was soon well known for large numbers of large rainbows and was one of the state’s most popular fisheries through the 1970’s, however the Crane Prairie food web was increasing in complexity. The Department introduced coho (Oncorhynchus kisutch), kokanee, and brook trout (Salvelinus fontinalis) as sport fish after 1950. Largemouth bass were then illegally introduced to the reservoir in the early 1980's. Black crappie (Pomoxis nigromaculatis), bluegill (Lepomis macrochirus), brown bullhead (Ameirus,nebulosus), stickleback (Gasterosteus aculeatus), and tui chub (Gila bicolor) were illegally introduced after the bass. All of the introduced species other than coho continue to reproduce naturally in the reservoir. The Department sets gill nets on annual basis to monitor managed fish populations. Our current goal is to determine fishery performance and growth differences between two diploid stocks and a triploid stock of rainbow trout. Title: 2001-2012 Crane Prairie population assessment Abstract -- Crane Prairie is a large shallow reservoir fed by the Deschutes River, Quinn River, Cultus River, and Cultus Creek. When the reservoir was built in 1922 it engulfed a large meadow and forest area, leaving behind large areas of snags and fallen timber providing habitat for fish and insects. Bull trout, mountain whitefish, and redband trout were native to the reservoir when it was created, but bull trout were extirpated by 1955 due to stocking of non-native fish, loss of spawning habitat and fish passage, and selective management. The reservoir was soon well known for large numbers of large rainbows and was one of the state’s most popular fisheries through the 1970’s, however the Crane Prairie food web was increasing in complexity. The Department introduced coho (Oncorhynchus kisutch), kokanee, and brook trout (Salvelinus fontinalis) as sport fish after 1950. Largemouth bass were then illegally introduced to the reservoir in the early 1980's. Black crappie (Pomoxis nigromaculatis), bluegill (Lepomis macrochirus), brown bullhead (Ameirus,nebulosus), stickleback (Gasterosteus aculeatus), and tui chub (Gila bicolor) were illegally introduced after the bass. All of the introduced species other than coho continue to reproduce naturally in the reservoir. The Department sets gill nets on annual basis to monitor managed fish populations. Our current goal is to determine fishery performance and growth differences between two diploid stocks and a triploid stock of rainbow trout. Close

• 75. [Article] Life History Variability, Habitat Use, and Migratory Behavior of Coastal Cutthroat Trout in the Salmon River, Oregon Report Number: OPSW-ODFW-2012-10

  Abstract -- Coast basins in Oregon support resident and anadromous cutthroat trout (Oncorhynchus clarki clarki). Cutthroat trout isolated above barriers are stream resident, but those with access to river, ...

  Citation × Citation Citation Abstract Copy Title: Life History Variability, Habitat Use, and Migratory Behavior of Coastal Cutthroat Trout in the Salmon River, Oregon Report Number: OPSW-ODFW-2012-10 Abstract -- Coast basins in Oregon support resident and anadromous cutthroat trout (Oncorhynchus clarki clarki). Cutthroat trout isolated above barriers are stream resident, but those with access to river, estuary, and marine environments may express a variety of life history and migratory patterns. Past studies (e.g. Giger 1972, Sumner 1972, Tipping 1981) indicated that estuaries serve primarily as a migratory corridor or short-term rearing environment. However, recent advances in marking and tracking technology have permitted researchers to gain a better understanding of the complex migratory and habitat use patterns of cutthroat. Krentz (2007) conducted studies in Salmon River on the central Oregon coast to explore migratory patterns of cutthroat and examine the role of the estuary as a rearing environment. Coastal cutthroat trout reared for extended periods of time throughout the available channel habitats in Salmon River estuary (Krentz 2007) during spring, summer, and fall. The estuarine resident population appeared to represent a significant portion of the migratory individuals, and included all older age classes. Estuary growth was similar to that of their ocean migrant counterparts, and survival in the estuary was high. Because cutthroat were collected and marked primarily within the estuary (Krentz 2007), it is unclear what portion of the migrant population reared in the estuary relative to the watershed or ocean, or whether the tagged group was representative of the migratory populations. The current study was designed to track a representative sample of the downstream migrant population, and assess the relative success (survival) of the estuary and ocean migrants. Similar studies in the Columbia River documented directed and rapid migration through the estuary (Zydlewski et al. 2008, Hering et al. 2009). With rare exception, cutthroat trout were not observed to rear in the estuary. In addition, many fish disappeared before reaching the ocean and few of the ocean migrants returned to the natal tributary. In this study we replicated the study design used in the Columbia River studies to further comparisons of estuary migration and rearing strategies between the two estuaries. The primary objective of our work in the Salmon River was to increase understanding of coastal cutthroat trout biology and the relationship between stream-resident and migratory, or “sea-run” cutthroat. Here we use the term “sea-run” to indicate migration into the tidally-inundated, or estuarine portions of the Salmon River watershed or to the ocean. Study objectives were to: 1.Estimate the distribution and abundance of coastal cutthroat trout in the Salmon River watershed 2.Quantify the proportions of the cutthroat populations that are migratory, identify which individuals migrate and describe the timing of migration 3.Describe estuary habitats used by sea-run migrants and characterize behavior within the Salmon River estuary 4.Estimate growth rate of stream and estuary resident cutthroat 5.Estimate estuary and ocean survival of sea-run individuals and document return to estuary and lower river. 6.Compare migratory behavior in Salmon River to that observed in the lower Columbia River Title: Life History Variability, Habitat Use, and Migratory Behavior of Coastal Cutthroat Trout in the Salmon River, Oregon Report Number: OPSW-ODFW-2012-10 Abstract -- Coast basins in Oregon support resident and anadromous cutthroat trout (Oncorhynchus clarki clarki). Cutthroat trout isolated above barriers are stream resident, but those with access to river, estuary, and marine environments may express a variety of life history and migratory patterns. Past studies (e.g. Giger 1972, Sumner 1972, Tipping 1981) indicated that estuaries serve primarily as a migratory corridor or short-term rearing environment. However, recent advances in marking and tracking technology have permitted researchers to gain a better understanding of the complex migratory and habitat use patterns of cutthroat. Krentz (2007) conducted studies in Salmon River on the central Oregon coast to explore migratory patterns of cutthroat and examine the role of the estuary as a rearing environment. Coastal cutthroat trout reared for extended periods of time throughout the available channel habitats in Salmon River estuary (Krentz 2007) during spring, summer, and fall. The estuarine resident population appeared to represent a significant portion of the migratory individuals, and included all older age classes. Estuary growth was similar to that of their ocean migrant counterparts, and survival in the estuary was high. Because cutthroat were collected and marked primarily within the estuary (Krentz 2007), it is unclear what portion of the migrant population reared in the estuary relative to the watershed or ocean, or whether the tagged group was representative of the migratory populations. The current study was designed to track a representative sample of the downstream migrant population, and assess the relative success (survival) of the estuary and ocean migrants. Similar studies in the Columbia River documented directed and rapid migration through the estuary (Zydlewski et al. 2008, Hering et al. 2009). With rare exception, cutthroat trout were not observed to rear in the estuary. In addition, many fish disappeared before reaching the ocean and few of the ocean migrants returned to the natal tributary. In this study we replicated the study design used in the Columbia River studies to further comparisons of estuary migration and rearing strategies between the two estuaries. The primary objective of our work in the Salmon River was to increase understanding of coastal cutthroat trout biology and the relationship between stream-resident and migratory, or “sea-run” cutthroat. Here we use the term “sea-run” to indicate migration into the tidally-inundated, or estuarine portions of the Salmon River watershed or to the ocean. Study objectives were to: 1.Estimate the distribution and abundance of coastal cutthroat trout in the Salmon River watershed 2.Quantify the proportions of the cutthroat populations that are migratory, identify which individuals migrate and describe the timing of migration 3.Describe estuary habitats used by sea-run migrants and characterize behavior within the Salmon River estuary 4.Estimate growth rate of stream and estuary resident cutthroat 5.Estimate estuary and ocean survival of sea-run individuals and document return to estuary and lower river. 6.Compare migratory behavior in Salmon River to that observed in the lower Columbia River Close

• 76. [Article] Comprehensive Plan for Production and Management of Oregon's Anadromous Salmon and Trout: Part I. General Considerations

  Abstract -- A comprehensive plan was prepared for managing Oregon's anadromous salmon and trout resources. The plan provides the basic framework for managing individual anadromous species, presenting an ...

  Citation × Citation Citation Abstract Copy Title: Comprehensive Plan for Production and Management of Oregon's Anadromous Salmon and Trout: Part I. General Considerations Abstract -- A comprehensive plan was prepared for managing Oregon's anadromous salmon and trout resources. The plan provides the basic framework for managing individual anadromous species, presenting an organized approach rather than an empirical approach to management problems. It also provides the primary focus for developing subsidiary management plans for individual subbasins. The management goals, status of the stocks, planning definitions, and administrative guidelines constraining the planning process are described or documented in developing the plan. The plan applies four fundamental concepts on wild fish, stocks, stock-recruitment relationships, and habitat requirements as underlying principles required for prudent management of anadromous fish resources. The concepts and their role in the planning effort are documented. Various economic goals and associated problems are described to attain efficient and equitable utilization of anadromous fish resources by harvesters and to satisfy the broader concerns of society in managing the stocks. Title: Comprehensive Plan for Production and Management of Oregon's Anadromous Salmon and Trout: Part I. General Considerations Abstract -- A comprehensive plan was prepared for managing Oregon's anadromous salmon and trout resources. The plan provides the basic framework for managing individual anadromous species, presenting an organized approach rather than an empirical approach to management problems. It also provides the primary focus for developing subsidiary management plans for individual subbasins. The management goals, status of the stocks, planning definitions, and administrative guidelines constraining the planning process are described or documented in developing the plan. The plan applies four fundamental concepts on wild fish, stocks, stock-recruitment relationships, and habitat requirements as underlying principles required for prudent management of anadromous fish resources. The concepts and their role in the planning effort are documented. Various economic goals and associated problems are described to attain efficient and equitable utilization of anadromous fish resources by harvesters and to satisfy the broader concerns of society in managing the stocks. Close

• 77. [Article] Fish Management Plan Hosmer Lake 1990

  Abstract -- Hosmer Lake and it's water supply are entirely in US Forest Service ownership. The lake and adjacent lands, are managed by the Forest under recreation and visual classifications. The water ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Hosmer Lake 1990 Abstract -- Hosmer Lake and it's water supply are entirely in US Forest Service ownership. The lake and adjacent lands, are managed by the Forest under recreation and visual classifications. The water of the lake is state-owned and the fish resources are managed by the Oregon Department of Fish and Wildlife (ODFW). Hosmer Lake is a natural lake located about 40 miles west of Bend via County Road 46 (Century Drive) and Forest Road 470. One main campground, one overflow campground and a concrete boat ramp are managed by the Deschutes National Forest. Hosmer Lake covers 160 surface acres and lies at an elevation of 4,950 feet. Maximum water depth is 11 feet and most of the lake is very shallow. The only inlet to the lake is Quinn Creek, a spring-fed stream with a flow of 25 cfs and a near-constant temperature of 42°F. Hosmer Lake contains Atlantic salmon ("Salmo salar") and brook trout ("Salvelinus fontinalis"). The lake was chemically treated in 1957 to remove a population of carp ("Cyprinus carpio"), Tui chub ("Siphateles bicolor") and brook trout. The treatment successfully removed all carp and Tui chub, but not all brook trout. Non-game fish have not reappeared since 1957. Originally, it was hoped the Atlantic salmon would spawn successfully in Quinn Creek. However, they cannot ascend the six-foot falls in lower Quinn Creek. The pumice bottom and annual anchor-ice scouring also nullifies egg development. The population of salmon at Hosmer has been maintained soley by hatchery fish since 1958. Title: Fish Management Plan Hosmer Lake 1990 Abstract -- Hosmer Lake and it's water supply are entirely in US Forest Service ownership. The lake and adjacent lands, are managed by the Forest under recreation and visual classifications. The water of the lake is state-owned and the fish resources are managed by the Oregon Department of Fish and Wildlife (ODFW). Hosmer Lake is a natural lake located about 40 miles west of Bend via County Road 46 (Century Drive) and Forest Road 470. One main campground, one overflow campground and a concrete boat ramp are managed by the Deschutes National Forest. Hosmer Lake covers 160 surface acres and lies at an elevation of 4,950 feet. Maximum water depth is 11 feet and most of the lake is very shallow. The only inlet to the lake is Quinn Creek, a spring-fed stream with a flow of 25 cfs and a near-constant temperature of 42°F. Hosmer Lake contains Atlantic salmon ("Salmo salar") and brook trout ("Salvelinus fontinalis"). The lake was chemically treated in 1957 to remove a population of carp ("Cyprinus carpio"), Tui chub ("Siphateles bicolor") and brook trout. The treatment successfully removed all carp and Tui chub, but not all brook trout. Non-game fish have not reappeared since 1957. Originally, it was hoped the Atlantic salmon would spawn successfully in Quinn Creek. However, they cannot ascend the six-foot falls in lower Quinn Creek. The pumice bottom and annual anchor-ice scouring also nullifies egg development. The population of salmon at Hosmer has been maintained soley by hatchery fish since 1958. Close

• 78. [Article] Fish Management Plan Siuslaw River 1979

  Abstract -- The Siuslaw River is a large system entering the Pacific Ocean near Florence. The system contains about 950 miles of stream and produces resident and anadromous cutthroat trout,winter steelhead, ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Siuslaw River 1979 Abstract -- The Siuslaw River is a large system entering the Pacific Ocean near Florence. The system contains about 950 miles of stream and produces resident and anadromous cutthroat trout,winter steelhead, and coho and fall chinook salmon. Small numbers of spring chinook are found in the system and shad and striped bass are also present. Good numbers of wild fish of all species are produced in the Siuslaw and ODFW annually releases sea-run cutthroat and winter steelhead. Extensive fisheries have developed on this combination of wild and hatchery fish. There are no special angling regulations in effect at present other than an angling deadline on Lake Creek. Three private salmon hatcheries have received permits to release fish into the Siuslaw. Although these facilities have not yet obtained significant returns of adults, the potential exists for large numbers of hatchery adults to return to the system. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage the Siuslaw River system, except for Triangle Lake and its tributaries, for wild and hatchery trout, steelhead, and salmon. Hatchery fish will be released in areas and at sizes and times to maximize their contribution to the sport fisheries in the system and to minimize their impact on the extensive wild fish populations present. Trout populations in Triangle Lake and its tributaries will be managed for wild fish. Title: Fish Management Plan Siuslaw River 1979 Abstract -- The Siuslaw River is a large system entering the Pacific Ocean near Florence. The system contains about 950 miles of stream and produces resident and anadromous cutthroat trout,winter steelhead, and coho and fall chinook salmon. Small numbers of spring chinook are found in the system and shad and striped bass are also present. Good numbers of wild fish of all species are produced in the Siuslaw and ODFW annually releases sea-run cutthroat and winter steelhead. Extensive fisheries have developed on this combination of wild and hatchery fish. There are no special angling regulations in effect at present other than an angling deadline on Lake Creek. Three private salmon hatcheries have received permits to release fish into the Siuslaw. Although these facilities have not yet obtained significant returns of adults, the potential exists for large numbers of hatchery adults to return to the system. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage the Siuslaw River system, except for Triangle Lake and its tributaries, for wild and hatchery trout, steelhead, and salmon. Hatchery fish will be released in areas and at sizes and times to maximize their contribution to the sport fisheries in the system and to minimize their impact on the extensive wild fish populations present. Trout populations in Triangle Lake and its tributaries will be managed for wild fish. Close

• 79. [Article] Fish Management Plan Yachats River, 1979

  Abstract -- The Yachats River is a moderate-sized tributary to the Pacific Ocean containing 55 stream miles and a small estuary. This is an excellent small system that is not stocked with hatchery fish ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Yachats River, 1979 Abstract -- The Yachats River is a moderate-sized tributary to the Pacific Ocean containing 55 stream miles and a small estuary. This is an excellent small system that is not stocked with hatchery fish since the habitat is capable of producing a good population of wild fish. The stream receives light angling pressure; but we believe this will increase and more restrictive angling regulations may eventually be needed, although none are necessary now. The Yachats produces resident and anadromous cutthroat trout, fall Chinook and coho salmon, and winter steelhead. Releases of hatchery steelhead were terminated in 1969; cutthroat trout in 1978; and the only known release of salmon was made in 1958. There are no special angling regulations in effect at present. Maintenance of water quality, summertime streamflows, riparian vegetation, and prevention of stream channel alterations are key elements in protecting the capability of this stream to sustain natural production of al] salmonids. In July 1979, the Oregon Fish and Wildlife Commission accepted the following Department recommendations: The Yachats River will be managed for wild trout. The Yachats River will be managed for wild steelhead for the immediate future. However, if ODFW determines that steelheaders are opposed to this option, the Fish and Wildlife Commission will consider authorizing the release of hatchery smolts to enhance the fishery. The choice of a management option for salmon will be deferred until a coast-wide salmon management plan is developed. At that time, staff biologists will decide on a final recommendation to the Fish and Wildlife Commission regarding the need or desirability for releasing hatchery salmon into the system. Title: Fish Management Plan Yachats River, 1979 Abstract -- The Yachats River is a moderate-sized tributary to the Pacific Ocean containing 55 stream miles and a small estuary. This is an excellent small system that is not stocked with hatchery fish since the habitat is capable of producing a good population of wild fish. The stream receives light angling pressure; but we believe this will increase and more restrictive angling regulations may eventually be needed, although none are necessary now. The Yachats produces resident and anadromous cutthroat trout, fall Chinook and coho salmon, and winter steelhead. Releases of hatchery steelhead were terminated in 1969; cutthroat trout in 1978; and the only known release of salmon was made in 1958. There are no special angling regulations in effect at present. Maintenance of water quality, summertime streamflows, riparian vegetation, and prevention of stream channel alterations are key elements in protecting the capability of this stream to sustain natural production of al] salmonids. In July 1979, the Oregon Fish and Wildlife Commission accepted the following Department recommendations: The Yachats River will be managed for wild trout. The Yachats River will be managed for wild steelhead for the immediate future. However, if ODFW determines that steelheaders are opposed to this option, the Fish and Wildlife Commission will consider authorizing the release of hatchery smolts to enhance the fishery. The choice of a management option for salmon will be deferred until a coast-wide salmon management plan is developed. At that time, staff biologists will decide on a final recommendation to the Fish and Wildlife Commission regarding the need or desirability for releasing hatchery salmon into the system. Close

• 80. [Article] Burnt River Basin Master Plan for Angler Access and Associated Recreational Uses 1966

  Abstract -- The Burnt River headwaters are found along the southwestern Baker County line. The North, South, and Middle Forks join at Unity Reservoir about five miles north of the town of Unity. Below ...

  Citation × Citation Citation Abstract Copy Title: Burnt River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Burnt River headwaters are found along the southwestern Baker County line. The North, South, and Middle Forks join at Unity Reservoir about five miles north of the town of Unity. Below Unity Dam, the river makes its way through the Burnt River Valley. The 63.5 miles of the main river below Unity Dam is heavily infested with rough fish. To produce a good fishery, the river would need rehabilitation that would include: 1) Chemical treatment of the river and tributaries to remove the rough fish population. 2) Reintroduction of suitable fish species. 3) Construction of a barrier at downstream end to prevent upstream migration of rough fish from lower impoundments; e.g., Brownlee Reservoir. With the removal of rough fish, trout and warm-water game fish could be established and would produce good angling. At present, the trout fishery is confined to Unity Reservoir and the area directly below the dam. Trout angling on the forks of the system is limited and restricted to the early spring. Warm-water game fish are taken in the lower river in early spring. Title: Burnt River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Burnt River headwaters are found along the southwestern Baker County line. The North, South, and Middle Forks join at Unity Reservoir about five miles north of the town of Unity. Below Unity Dam, the river makes its way through the Burnt River Valley. The 63.5 miles of the main river below Unity Dam is heavily infested with rough fish. To produce a good fishery, the river would need rehabilitation that would include: 1) Chemical treatment of the river and tributaries to remove the rough fish population. 2) Reintroduction of suitable fish species. 3) Construction of a barrier at downstream end to prevent upstream migration of rough fish from lower impoundments; e.g., Brownlee Reservoir. With the removal of rough fish, trout and warm-water game fish could be established and would produce good angling. At present, the trout fishery is confined to Unity Reservoir and the area directly below the dam. Trout angling on the forks of the system is limited and restricted to the early spring. Warm-water game fish are taken in the lower river in early spring. Close

• 81. [Article] McKenzie River Plan Summary, Mailing

  Abstract -- The McKenzie River subbasin is an area rich in natural beauty and resources. The tradition of fishing the McKenzie runs deep, and its notoriety reaches far and wide. The McKenzie River is one ...

  Citation × Citation Citation Abstract Copy Title: McKenzie River Plan Summary, Mailing Abstract -- The McKenzie River subbasin is an area rich in natural beauty and resources. The tradition of fishing the McKenzie runs deep, and its notoriety reaches far and wide. The McKenzie River is one of the most popular rivers for fishing in Oregon. During the 1983 trout season, an estimated 54,000 anglers fished from Blue River to Armitage Park. The most sought after species include native rainbow and cutthroat trout, spring chinook, and in recent years, an introduced run of summer steelhead. To meet angling demand, hatchery rainbow trout are stocked in portions of the mainstem, Blue River, and the South Fork. During the past year, Oregon Department of Fish and Wildlife biologists and a public advisory team from the McKenzie River/Eugene-Springfield area, jointly developed a draft plan to guide the management of the fisheries in the McKenzie subbasin. The draft plan includes management guidelines, objectives, priorities, and recommended actions to solve the principal fisheries' problems concerning: • Habitat • Management of major fish species or groups of species • Angling access This summary covers some of the key elements of the draft plan. Title: McKenzie River Plan Summary, Mailing Abstract -- The McKenzie River subbasin is an area rich in natural beauty and resources. The tradition of fishing the McKenzie runs deep, and its notoriety reaches far and wide. The McKenzie River is one of the most popular rivers for fishing in Oregon. During the 1983 trout season, an estimated 54,000 anglers fished from Blue River to Armitage Park. The most sought after species include native rainbow and cutthroat trout, spring chinook, and in recent years, an introduced run of summer steelhead. To meet angling demand, hatchery rainbow trout are stocked in portions of the mainstem, Blue River, and the South Fork. During the past year, Oregon Department of Fish and Wildlife biologists and a public advisory team from the McKenzie River/Eugene-Springfield area, jointly developed a draft plan to guide the management of the fisheries in the McKenzie subbasin. The draft plan includes management guidelines, objectives, priorities, and recommended actions to solve the principal fisheries' problems concerning: • Habitat • Management of major fish species or groups of species • Angling access This summary covers some of the key elements of the draft plan. Close

• 82. [Article] Silver Lake Watershed Assessment

  Abstract -- Ch. 1: Introduction; Ch. 2: Charaterization, Issues, and Key Questions; Ch. 3: Uplands; Ch. 4: Riparian Vegetation and Stream Channels; Ch. 5: Habitat for Aquatic Species; Ch. 6: Viability ...

  Citation × Citation Citation Abstract Copy Title: Silver Lake Watershed Assessment Abstract -- Ch. 1: Introduction; Ch. 2: Charaterization, Issues, and Key Questions; Ch. 3: Uplands; Ch. 4: Riparian Vegetation and Stream Channels; Ch. 5: Habitat for Aquatic Species; Ch. 6: Viability of Native Aquatic Species (Redband Trout); Ch. 7: Recommendations Title: Silver Lake Watershed Assessment Abstract -- Ch. 1: Introduction; Ch. 2: Charaterization, Issues, and Key Questions; Ch. 3: Uplands; Ch. 4: Riparian Vegetation and Stream Channels; Ch. 5: Habitat for Aquatic Species; Ch. 6: Viability of Native Aquatic Species (Redband Trout); Ch. 7: Recommendations Close

• 83. [Article] Bull Trout Habitat Distribution

  Abstract -- Oregon Resident Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by wild, natural, and/or hatchery fish populations. The ...

  Citation × Citation Citation Abstract Copy Title: Bull Trout Habitat Distribution Abstract -- Oregon Resident Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by wild, natural, and/or hatchery fish populations. The term "currently" is defined as within the past five reproductive cycles. Historical habitat includes suitable habitat that fish no longer access and will not access in the foreseeable future without human intervention. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually. These data comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in February 2011. The Standard document can be found at: http://gis.oregon.gov/DAS/EISPD/GEO/standards/docs/OregonFishHabitatDistributionDataStandardv2.pdf Historical habitat distribution data are within the scope of the standard and are identified via the habitat use (fhdUseType) attribute. Historical habitats are only identified outside of currently accessible habitat and are not comprehensive. Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the were originally developed against the Pacific Northwest Framework Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2014. Data were migrated to the National Hydrography Dataset in 2014. The attached geodatabase includes distribution for Bull trout only. Note: Bull Trout habitat distribution for the upper Clackamas basin have not yet been added to this dataset. Title: Bull Trout Habitat Distribution Abstract -- Oregon Resident Fish Habitat Distribution. These data describe areas of suitable habitat believed to be used currently or historically by wild, natural, and/or hatchery fish populations. The term "currently" is defined as within the past five reproductive cycles. Historical habitat includes suitable habitat that fish no longer access and will not access in the foreseeable future without human intervention. This information is based on sampling, the best professional opinion of Oregon Dept. of Fish and Wildlife or other natural resources agency staff biologists or modeling (see the fhdBasis field). Due to natural variations in run size, water conditions, or other environmental factors, some habitats identified may not be used annually. These data comply with the Oregon Fish Habitat Distribution Data Standard that was adopted by the Oregon Geographic Information Council in February 2011. The Standard document can be found at: http://gis.oregon.gov/DAS/EISPD/GEO/standards/docs/OregonFishHabitatDistributionDataStandardv2.pdf Historical habitat distribution data are within the scope of the standard and are identified via the habitat use (fhdUseType) attribute. Historical habitats are only identified outside of currently accessible habitat and are not comprehensive. Key features of the Oregon Fish Habitat Distribution Data include: species, run, life history, habitat use, origin, production, the basis for each record, originator name, originator entity and reference. Habitat distribution data are mapped at a 1:24,000 scale statewide and are based on the were originally developed against the Pacific Northwest Framework Hydrography dataset. The data are made available as GIS files in both shapefile and ESRI geodatabase format. The data were developed over an extensive time period ranging from 1996 to 2014. Data were migrated to the National Hydrography Dataset in 2014. The attached geodatabase includes distribution for Bull trout only. Note: Bull Trout habitat distribution for the upper Clackamas basin have not yet been added to this dataset. Close

• 84. [Article] Monthly Report November 1947

  Abstract -- None

  Citation × Citation Citation Abstract Copy Title: Monthly Report November 1947 Abstract -- None Title: Monthly Report November 1947 Abstract -- None Close

• 85. [Article] Evaluation of a Sampling Approach to Monitor the Status of Great Basin Redband Trout in Southeastern Oregon (2007 – 2009) Information Reports number 2010-02

  Abstract -- The summer 2009 field season marked the completion of the third of a six year sampling effort to assess the distribution and abundance of redband trout (Oncorhynchus mykiss newberrii) in the ...

  Citation × Citation Citation Abstract Copy Title: Evaluation of a Sampling Approach to Monitor the Status of Great Basin Redband Trout in Southeastern Oregon (2007 – 2009) Information Reports number 2010-02 Abstract -- The summer 2009 field season marked the completion of the third of a six year sampling effort to assess the distribution and abundance of redband trout (Oncorhynchus mykiss newberrii) in the six interior basins of Oregon’s high desert: Catlow Valley, Chewaucan, Fort Rock, Goose Lake, Malheur Lakes, and Warner Valley Species Management Units (SMUs). Across all sampling years, sites were randomly selected using Generalized Random Tessellation Stratified (GRTS) design, which provides a random spatially balanced sample allowing for statistically rigorous evaluation of status, trend and distribution at multiple spatial scales. A total of 700 site surveys were conducted over the course of the study covering nearly 2% of the entire 2,420 km sampling frame. Abundance of age-1+ redband trout at the SMU level has remained relatively stable throughout the course of this study but has decreased since intensively sampled in 1999. Estimates of landscape-wide abundance of age-1+ redband trout were of similar magnitude and had comparable precision across all three study years, averaging 878,000 + 16%. However, abundance at the SMU and population (stratum) level showed substantial variation, both spatially and inter-annually. Fish densities (fish/m) sampled at sites visited annually (2007-2009) showed significant differences between years, specifically between 2007 and 2009 in the Chewaucan and Fort Rock SMUs. Target levels of relative precision were achieved twice at the SMU level, and in approximately half of the strata. Increasing the number of sites sampled to increase precision is not likely, given limited funding. Yet, the current study design falls short of providing precise information to develop conservation management plans. Alternative sampling designs that would maximize data acquisition at the population level, while allowing for estimates of yearly variation were explored and suggested. Title: Evaluation of a Sampling Approach to Monitor the Status of Great Basin Redband Trout in Southeastern Oregon (2007 – 2009) Information Reports number 2010-02 Abstract -- The summer 2009 field season marked the completion of the third of a six year sampling effort to assess the distribution and abundance of redband trout (Oncorhynchus mykiss newberrii) in the six interior basins of Oregon’s high desert: Catlow Valley, Chewaucan, Fort Rock, Goose Lake, Malheur Lakes, and Warner Valley Species Management Units (SMUs). Across all sampling years, sites were randomly selected using Generalized Random Tessellation Stratified (GRTS) design, which provides a random spatially balanced sample allowing for statistically rigorous evaluation of status, trend and distribution at multiple spatial scales. A total of 700 site surveys were conducted over the course of the study covering nearly 2% of the entire 2,420 km sampling frame. Abundance of age-1+ redband trout at the SMU level has remained relatively stable throughout the course of this study but has decreased since intensively sampled in 1999. Estimates of landscape-wide abundance of age-1+ redband trout were of similar magnitude and had comparable precision across all three study years, averaging 878,000 + 16%. However, abundance at the SMU and population (stratum) level showed substantial variation, both spatially and inter-annually. Fish densities (fish/m) sampled at sites visited annually (2007-2009) showed significant differences between years, specifically between 2007 and 2009 in the Chewaucan and Fort Rock SMUs. Target levels of relative precision were achieved twice at the SMU level, and in approximately half of the strata. Increasing the number of sites sampled to increase precision is not likely, given limited funding. Yet, the current study design falls short of providing precise information to develop conservation management plans. Alternative sampling designs that would maximize data acquisition at the population level, while allowing for estimates of yearly variation were explored and suggested. Close

• 86. [Article] Lake Billy Chinook Creel Survey - 1999 Length Frequency

  Abstract -- Lake Billy Chinook Creel Survey - 1999, Length Frequency of bull trout measured in March and June of 1999

  Citation × Citation Citation Abstract Copy Title: Lake Billy Chinook Creel Survey - 1999 Length Frequency Abstract -- Lake Billy Chinook Creel Survey - 1999, Length Frequency of bull trout measured in March and June of 1999 Title: Lake Billy Chinook Creel Survey - 1999 Length Frequency Abstract -- Lake Billy Chinook Creel Survey - 1999, Length Frequency of bull trout measured in March and June of 1999 Close

• 87. [Article] Lake Billy Chinook Creel Survey - 1997, Length Frequency

  Abstract -- Lake Billy Chinook Creel Survey, 1997. Length frequency in March-August for bull trout.

  Citation × Citation Citation Abstract Copy Title: Lake Billy Chinook Creel Survey - 1997, Length Frequency Abstract -- Lake Billy Chinook Creel Survey, 1997. Length frequency in March-August for bull trout. Title: Lake Billy Chinook Creel Survey - 1997, Length Frequency Abstract -- Lake Billy Chinook Creel Survey, 1997. Length frequency in March-August for bull trout. Close

• 88. [Article] Fish Management Plan for Diamond Lake 1990

  Abstract -- Diamond Lake is a natural lake located about 80 miles east of Roseburg. The lake resulted from the melting of an extensive glacier held behind a lava flow from Mt. Thielson. The outlet is Lake ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan for Diamond Lake 1990 Abstract -- Diamond Lake is a natural lake located about 80 miles east of Roseburg. The lake resulted from the melting of an extensive glacier held behind a lava flow from Mt. Thielson. The outlet is Lake Creek, a major tributary to the North Umpqua River. Over 100 summer homes, three large U.S. Forest Service (USFS) campgrounds, and one major private resort are located around the lake. An improved road encompasses the lake. Heaviest use of the lake is by anglers, but snow-oriented recreation has increased. We estimate angler visits in excess of 100,000 annually. Under agreement with USFW, ODFW is responsible to maintenance of the lake level through manipulation of the outlet control weir. Consensus between agencies and user groups is necessary to prevent property damage to summer homeowners and USFS facilities but still maximize fish production in the lake. Diamond Lake has always been managed for rainbow trout fishery. The first trout were probably planted about 1910. Tui chubs (roach) appeared in 1940 - apparently as a result of angler using live bait. The lake was chemically treated in 1954 to remove the population. A few golden shiners are present now but it appears that they are having no impact on the trout population. Title: Fish Management Plan for Diamond Lake 1990 Abstract -- Diamond Lake is a natural lake located about 80 miles east of Roseburg. The lake resulted from the melting of an extensive glacier held behind a lava flow from Mt. Thielson. The outlet is Lake Creek, a major tributary to the North Umpqua River. Over 100 summer homes, three large U.S. Forest Service (USFS) campgrounds, and one major private resort are located around the lake. An improved road encompasses the lake. Heaviest use of the lake is by anglers, but snow-oriented recreation has increased. We estimate angler visits in excess of 100,000 annually. Under agreement with USFW, ODFW is responsible to maintenance of the lake level through manipulation of the outlet control weir. Consensus between agencies and user groups is necessary to prevent property damage to summer homeowners and USFS facilities but still maximize fish production in the lake. Diamond Lake has always been managed for rainbow trout fishery. The first trout were probably planted about 1910. Tui chubs (roach) appeared in 1940 - apparently as a result of angler using live bait. The lake was chemically treated in 1954 to remove the population. A few golden shiners are present now but it appears that they are having no impact on the trout population. Close

• 89. [Article] Fish Management Plan Sycan River 1981

  Abstract -- The Sycan River is a tributary to the Sprague River, entering at RM 70, near the town of Beatty. The elevation of the river ranges from 6,800 to 4,300 feet. In July 1981, the Oregon Fish and ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Sycan River 1981 Abstract -- The Sycan River is a tributary to the Sprague River, entering at RM 70, near the town of Beatty. The elevation of the river ranges from 6,800 to 4,300 feet. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the Sycan River for wild trout. Title: Fish Management Plan Sycan River 1981 Abstract -- The Sycan River is a tributary to the Sprague River, entering at RM 70, near the town of Beatty. The elevation of the river ranges from 6,800 to 4,300 feet. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage the Sycan River for wild trout. Close

• 90. [Article] Lake Creek (Jefferson County) Restoration Project: Biological Assessment

  Abstract -- The species population addressed in this document is the Columbia River Bull Trout Distinct Population Segment (DPS), which is under the jurisdiction of the U.S.Fish and Wildlife Service. Chapter ...

  Citation × Citation Citation Abstract Copy Title: Lake Creek (Jefferson County) Restoration Project: Biological Assessment Abstract -- The species population addressed in this document is the Columbia River Bull Trout Distinct Population Segment (DPS), which is under the jurisdiction of the U.S.Fish and Wildlife Service. Chapter headings include: introduction, evaluation methods, project description, avoidance minimization and conservation, natural history and species occurrence, environmental baseline conditions, analysis of effect of the action, interdependent and interrelated actions, finding of effect (take statement request), analysis of the effect of the action, and references. 37pp. Title: Lake Creek (Jefferson County) Restoration Project: Biological Assessment Abstract -- The species population addressed in this document is the Columbia River Bull Trout Distinct Population Segment (DPS), which is under the jurisdiction of the U.S.Fish and Wildlife Service. Chapter headings include: introduction, evaluation methods, project description, avoidance minimization and conservation, natural history and species occurrence, environmental baseline conditions, analysis of effect of the action, interdependent and interrelated actions, finding of effect (take statement request), analysis of the effect of the action, and references. 37pp. Close

• 91. [Article] Trout lakes of the Oregon Cascades; A review of fish management

  Abstract -- In 1990 the author, a former Oregon Department of Fish and Wildlife (ODFW) career fish biologist, retired and began gathering material to pen a brief description of Oregon's Cascade Mountain ...

  Citation × Citation Citation Abstract Copy Title: Trout lakes of the Oregon Cascades; A review of fish management Abstract -- In 1990 the author, a former Oregon Department of Fish and Wildlife (ODFW) career fish biologist, retired and began gathering material to pen a brief description of Oregon's Cascade Mountain lakes and their trout. He shortly set the collected records aside, opting to travel and go fishing instead. Upon recent discovery of the stored information, he decided to prepare this summary, largely to provide a partial list of aging documents which might otherwise become lost or forgotten. Many reports have been written regarding Cascade Range lakes and their fish. Unfortunately, a large number of those were unpublished, so may now be difficult to find. Larson and Donaldson (1971) probably offer the most comprehensive bibliography of those reports. The reference list herein adds several documents not contained in Larson and Donaldson, but only limited effort was made to identify or include those written after the late 1980s. Title: Trout lakes of the Oregon Cascades; A review of fish management Abstract -- In 1990 the author, a former Oregon Department of Fish and Wildlife (ODFW) career fish biologist, retired and began gathering material to pen a brief description of Oregon's Cascade Mountain lakes and their trout. He shortly set the collected records aside, opting to travel and go fishing instead. Upon recent discovery of the stored information, he decided to prepare this summary, largely to provide a partial list of aging documents which might otherwise become lost or forgotten. Many reports have been written regarding Cascade Range lakes and their fish. Unfortunately, a large number of those were unpublished, so may now be difficult to find. Larson and Donaldson (1971) probably offer the most comprehensive bibliography of those reports. The reference list herein adds several documents not contained in Larson and Donaldson, but only limited effort was made to identify or include those written after the late 1980s. Close

• 92. [Article] Big Lake Trout Management Plan 1982.pdf

  Abstract -- Big Lake lies near the summit of the Cascade Mountains at an elevation of 4,639 ft, has a maximum depth of 66 ft, and has no visible inlet or outlet. The lake is heavily used in the summer ...

  Citation × Citation Citation Abstract Copy Title: Big Lake Trout Management Plan 1982.pdf Abstract -- Big Lake lies near the summit of the Cascade Mountains at an elevation of 4,639 ft, has a maximum depth of 66 ft, and has no visible inlet or outlet. The lake is heavily used in the summer months for water-skiing, canoeing, sailing, swimming, and fishing. The USFS maintains a campground, a boat ramp with parking, and a day use swimming site. An organizational church camp is located on the east shore of the lake. Trail heads near the lake provide access to the Pacific Crest trail and the Patjens Lakes trail, both of which enter the Mt. Washington Wilderness Area. In July 1982, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Big Lake for hatchery fish. Title: Big Lake Trout Management Plan 1982.pdf Abstract -- Big Lake lies near the summit of the Cascade Mountains at an elevation of 4,639 ft, has a maximum depth of 66 ft, and has no visible inlet or outlet. The lake is heavily used in the summer months for water-skiing, canoeing, sailing, swimming, and fishing. The USFS maintains a campground, a boat ramp with parking, and a day use swimming site. An organizational church camp is located on the east shore of the lake. Trail heads near the lake provide access to the Pacific Crest trail and the Patjens Lakes trail, both of which enter the Mt. Washington Wilderness Area. In July 1982, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Big Lake for hatchery fish. Close

• 93. [Article] Clear Lake Fish Management Plan 1990

  Abstract -- Clear Lake, the origin of the McKenzie River, is located about 80 miles east of Eugene in Linn County, Oregon. The 148 acre lake is within the Willamette National Forest at an elevation of ...

  Citation × Citation Citation Abstract Copy Title: Clear Lake Fish Management Plan 1990 Abstract -- Clear Lake, the origin of the McKenzie River, is located about 80 miles east of Eugene in Linn County, Oregon. The 148 acre lake is within the Willamette National Forest at an elevation of 3,012 feet. Clear Lake is biologically unusual. Although the underwater trees are not petrified, decomposition has been very slow because of the _low level of biological activity in the water. Biological activity is confined mainly to benthic algae in the northern end of the lake and to planktonic diatoms (primarily "Asterionella" and "Fragilaria") in the southern portion. Cutthroat trout is apparently the only indigenous salmonid species in Clear Lake. A 1922 Forest Service report describes Fish Lake and Hackleman Creek as being the most important spawning and juvenile rearing habitat for Clear Lake trout. Title: Clear Lake Fish Management Plan 1990 Abstract -- Clear Lake, the origin of the McKenzie River, is located about 80 miles east of Eugene in Linn County, Oregon. The 148 acre lake is within the Willamette National Forest at an elevation of 3,012 feet. Clear Lake is biologically unusual. Although the underwater trees are not petrified, decomposition has been very slow because of the _low level of biological activity in the water. Biological activity is confined mainly to benthic algae in the northern end of the lake and to planktonic diatoms (primarily "Asterionella" and "Fragilaria") in the southern portion. Cutthroat trout is apparently the only indigenous salmonid species in Clear Lake. A 1922 Forest Service report describes Fish Lake and Hackleman Creek as being the most important spawning and juvenile rearing habitat for Clear Lake trout. Close

• 94. [Article] Upper Deschutes River Fish Management Plan - Draft

  Abstract -- The Upper Deschutes River Fish Management Plan provides information on habitat, fish management, location and ownership, fish stocking history, angling regulations, management issues and management ...

  Citation × Citation Citation Abstract Copy Title: Upper Deschutes River Fish Management Plan - Draft Abstract -- The Upper Deschutes River Fish Management Plan provides information on habitat, fish management, location and ownership, fish stocking history, angling regulations, management issues and management alternatives. In the Habitat and Fish Management sections of the following discussion, the Deschutes River will be divided into two sections; Wickiup Dam to Benham Falls, and Benham Falls to Bend (North Canal Dam). The reason for this is based on stream morphology and changes in fish populations. Benham Falls is a high gradient natural cascade which separates the Deschutes River into two logical sections with low gradient above the falls and high gradient below. Similarly, fish population composition changes at Benham Falls with brown trout dominant above and rainbow trout dominant below. The remaining sections; location and ownership, fish stocking history, angling regulations, management issues, summary of alternatives and alternatives will be presented as (1) Deschutes River, and (2) Tributaries. Title: Upper Deschutes River Fish Management Plan - Draft Abstract -- The Upper Deschutes River Fish Management Plan provides information on habitat, fish management, location and ownership, fish stocking history, angling regulations, management issues and management alternatives. In the Habitat and Fish Management sections of the following discussion, the Deschutes River will be divided into two sections; Wickiup Dam to Benham Falls, and Benham Falls to Bend (North Canal Dam). The reason for this is based on stream morphology and changes in fish populations. Benham Falls is a high gradient natural cascade which separates the Deschutes River into two logical sections with low gradient above the falls and high gradient below. Similarly, fish population composition changes at Benham Falls with brown trout dominant above and rainbow trout dominant below. The remaining sections; location and ownership, fish stocking history, angling regulations, management issues, summary of alternatives and alternatives will be presented as (1) Deschutes River, and (2) Tributaries. Close

• 95. [Article] Fish Management Plan Middle Creek (Tributary of North Fork Coquille River) 1979

  Abstract -- Middle Creek is a large tributary of the North Fork Coquille River, entering at RM 19. The stream is about 62 miles long, but only 45 miles are available to anadromous fish. The watershed contains ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Middle Creek (Tributary of North Fork Coquille River) 1979 Abstract -- Middle Creek is a large tributary of the North Fork Coquille River, entering at RM 19. The stream is about 62 miles long, but only 45 miles are available to anadromous fish. The watershed contains fair to good habitat, and physical stream survey information has been collected. Middle Creek contains resident and anadromous cutthroat trout, winter steelhead, and coho salmon. Hatchery fish are not released into the system. There are no special angling regulations in effect at present. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Middle Creek for wild trout and steelhead. Choosing a management option for salmon will be deferred until ODFW develops a coast-wide salmon management plan. At that time, staff biologists will decide on a final recommendation to the Commission regarding the need or desirability for releasing hatchery salmon into Middle Creek. Title: Fish Management Plan Middle Creek (Tributary of North Fork Coquille River) 1979 Abstract -- Middle Creek is a large tributary of the North Fork Coquille River, entering at RM 19. The stream is about 62 miles long, but only 45 miles are available to anadromous fish. The watershed contains fair to good habitat, and physical stream survey information has been collected. Middle Creek contains resident and anadromous cutthroat trout, winter steelhead, and coho salmon. Hatchery fish are not released into the system. There are no special angling regulations in effect at present. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Middle Creek for wild trout and steelhead. Choosing a management option for salmon will be deferred until ODFW develops a coast-wide salmon management plan. At that time, staff biologists will decide on a final recommendation to the Commission regarding the need or desirability for releasing hatchery salmon into Middle Creek. Close

• 96. [Article] Management Plan Thompson Valley Reservoir 1986

  Abstract -- Thompson Valley Reservoir is an irrigation impoundment on Silver Creek in Lake County. It is located within the Fremont National Forest approximately 15 miles south of the town of Silver Lake. ...

  Citation × Citation Citation Abstract Copy Title: Management Plan Thompson Valley Reservoir 1986 Abstract -- Thompson Valley Reservoir is an irrigation impoundment on Silver Creek in Lake County. It is located within the Fremont National Forest approximately 15 miles south of the town of Silver Lake. The reservoir was constructed in 1926 and is owned and operated by the Silver Lake Irrigation District. There is no minimum pool stipulation. However, under normal operation, the reservoir maintains enough water to support a year-around fish population. The Department of Fish and Wildlife manages the reservoir for a trout fishery. The Fremont National Forest constructed and maintains two campgrounds with boat launching facilities. Angling is the most popular recreational activity, while other uses include camping, hunting and bird-watching. The Forest Service estimated that the reservoir received 9,000 recreational visitor-days of use in 1983. Use in 1984 was substantially higher. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Thompson Valley Reservoir for hatchery trout and look at the potential of eventually introducting bass or bass hybrids. Title: Management Plan Thompson Valley Reservoir 1986 Abstract -- Thompson Valley Reservoir is an irrigation impoundment on Silver Creek in Lake County. It is located within the Fremont National Forest approximately 15 miles south of the town of Silver Lake. The reservoir was constructed in 1926 and is owned and operated by the Silver Lake Irrigation District. There is no minimum pool stipulation. However, under normal operation, the reservoir maintains enough water to support a year-around fish population. The Department of Fish and Wildlife manages the reservoir for a trout fishery. The Fremont National Forest constructed and maintains two campgrounds with boat launching facilities. Angling is the most popular recreational activity, while other uses include camping, hunting and bird-watching. The Forest Service estimated that the reservoir received 9,000 recreational visitor-days of use in 1983. Use in 1984 was substantially higher. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Thompson Valley Reservoir for hatchery trout and look at the potential of eventually introducting bass or bass hybrids. Close

• 97. [Article] Fish Management Plan Winchuck River 1979

  Abstract -- The Winchuck River enters the Pacific Ocean just north of the California border. The South Fork is located entirely in California. Above the confluence of Wheeler Creek, at RM 12, the main ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Winchuck River 1979 Abstract -- The Winchuck River enters the Pacific Ocean just north of the California border. The South Fork is located entirely in California. Above the confluence of Wheeler Creek, at RM 12, the main stem continues as the East Fork Winchuck River. A US Forest Service campground is located near the mouth of Bear Creek. Resident and anadromous cutthroat, winter steelhead, and fall Chinook are produced in the system. The Winchuck is closed to all angling from a floating device and is closed to angling for salmon and steelhead upstream of Wheeler Creek. Salmon angling is not allowed from December 1 through March 31 of the following year. Prior to the writing of this plan, the Winchuck River was managed for wild steelhead and salmon and less than 1,000 catchable cutthroat trout were released into the stream annually. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage the Winchuck River for wild trout, steelhead, and salmon. Stocking of hatchery cutthroat, therefore, terminated with the 1979 release. Title: Fish Management Plan Winchuck River 1979 Abstract -- The Winchuck River enters the Pacific Ocean just north of the California border. The South Fork is located entirely in California. Above the confluence of Wheeler Creek, at RM 12, the main stem continues as the East Fork Winchuck River. A US Forest Service campground is located near the mouth of Bear Creek. Resident and anadromous cutthroat, winter steelhead, and fall Chinook are produced in the system. The Winchuck is closed to all angling from a floating device and is closed to angling for salmon and steelhead upstream of Wheeler Creek. Salmon angling is not allowed from December 1 through March 31 of the following year. Prior to the writing of this plan, the Winchuck River was managed for wild steelhead and salmon and less than 1,000 catchable cutthroat trout were released into the stream annually. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage the Winchuck River for wild trout, steelhead, and salmon. Stocking of hatchery cutthroat, therefore, terminated with the 1979 release. Close

• 98. [Article] Hood River Basin Master Plan for Angler Access and Associated Recreational Uses 1968

  Abstract -- Hood River, located in the north central part of the State, heads on the north slopes of Mount Hood and flows in a northerly direction to enter the Columbia River at the town of Hood River. ...

  Citation × Citation Citation Abstract Copy Title: Hood River Basin Master Plan for Angler Access and Associated Recreational Uses 1968 Abstract -- Hood River, located in the north central part of the State, heads on the north slopes of Mount Hood and flows in a northerly direction to enter the Columbia River at the town of Hood River. The fishery of Hood River consists of two types. The main stem of Hood River is managed primarily for anadromous fish, although there is also a light trout fishery. The East and Middle Forks, closed to angling in the winter, have a resident trout fishery in the spring and summer. The West Fork, at the present time, is being managed as a rearing area for steelhead and is closed to angling throughout the year. Although some anglers do come from the nearby metropolitan areas, the lower river is used mainly by local anglers during the winter fishing season. During the summer, however, the majority of the use is by vacation anglers from around the state. Angler access in the Hood River Basin is generally good, but needs improvement to assure future access where it is now available by implied consent by private landowners. Title: Hood River Basin Master Plan for Angler Access and Associated Recreational Uses 1968 Abstract -- Hood River, located in the north central part of the State, heads on the north slopes of Mount Hood and flows in a northerly direction to enter the Columbia River at the town of Hood River. The fishery of Hood River consists of two types. The main stem of Hood River is managed primarily for anadromous fish, although there is also a light trout fishery. The East and Middle Forks, closed to angling in the winter, have a resident trout fishery in the spring and summer. The West Fork, at the present time, is being managed as a rearing area for steelhead and is closed to angling throughout the year. Although some anglers do come from the nearby metropolitan areas, the lower river is used mainly by local anglers during the winter fishing season. During the summer, however, the majority of the use is by vacation anglers from around the state. Angler access in the Hood River Basin is generally good, but needs improvement to assure future access where it is now available by implied consent by private landowners. Close

• 99. [Article] Josephine and Jackson Counties Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1968

  Abstract -- Josephine and Jackson Counties are located in the southwestern part of the state. The famous Rogue River Valley is the nucleus of the area. Most of the Jackson County lakes are in the Cascade ...

  Citation × Citation Citation Abstract Copy Title: Josephine and Jackson Counties Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1968 Abstract -- Josephine and Jackson Counties are located in the southwestern part of the state. The famous Rogue River Valley is the nucleus of the area. Most of the Jackson County lakes are in the Cascade Mountains. Josephine County has a few lakes in the Siskiyou Mountains at the south end of the county. The lakes included in this plan are either reservoirs or back country lakes. Some of the reservoirs were natural lakes but have been enlarged with the construction of a dam; others were formed by flooding a low meadow area. The fisheries differ as to locality and type of lake. The back country lakes have rainbow and brook trout; the large reservoirs are stocked with rainbow, cutthroat, and brook trout, and one reservoir has kokanee salmon. The warm-water lakes and ponds support populations of bass, bluegill, crappie, and catfish. We have attempted to include are those existing and potential bodies of water that provide or could be developed to provide significant recreation at economically feasible costs. Title: Josephine and Jackson Counties Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1968 Abstract -- Josephine and Jackson Counties are located in the southwestern part of the state. The famous Rogue River Valley is the nucleus of the area. Most of the Jackson County lakes are in the Cascade Mountains. Josephine County has a few lakes in the Siskiyou Mountains at the south end of the county. The lakes included in this plan are either reservoirs or back country lakes. Some of the reservoirs were natural lakes but have been enlarged with the construction of a dam; others were formed by flooding a low meadow area. The fisheries differ as to locality and type of lake. The back country lakes have rainbow and brook trout; the large reservoirs are stocked with rainbow, cutthroat, and brook trout, and one reservoir has kokanee salmon. The warm-water lakes and ponds support populations of bass, bluegill, crappie, and catfish. We have attempted to include are those existing and potential bodies of water that provide or could be developed to provide significant recreation at economically feasible costs. Close

• 100. [Article] Klamath County Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1968

  Abstract -- Water orientated recreation in Klamath County falls into three broad categories: (1) Trout angling in the multitude of mountain lakes, (2) Trout and warm-water angling in the open water at ...

  Citation × Citation Citation Abstract Copy Title: Klamath County Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1968 Abstract -- Water orientated recreation in Klamath County falls into three broad categories: (1) Trout angling in the multitude of mountain lakes, (2) Trout and warm-water angling in the open water at lower elevations, and (3) Waterfowl hunting on the marshlands and adjacent waters of the county. Public access to the mountain lakes is generally adequate with a few exceptions. A few of the larger lakes receive so much pressure from state-wide users that improved ramps and frontage roads would help to relieve crowded conditions. The U.S. Forest Service maintains many extensive campgrounds at the larger lakes and provides trail maintenance to most of the "pack-in" lakes. Reservoirs and lakes at the lower elevations, however, are in many cases surrounded by private ownership or/are utilized almost exclusively for irrigation purposes. In order to provide and maintain a fishery resource in many of these reservoirs a minimum pool will have to be secured in addition to providing boat and bank access. Waterfowl hunting will also be available at many sites where angling access is secured. Title: Klamath County Lakes and Reservoirs Master Plan for Angler Access and Associated Recreational Uses 1968 Abstract -- Water orientated recreation in Klamath County falls into three broad categories: (1) Trout angling in the multitude of mountain lakes, (2) Trout and warm-water angling in the open water at lower elevations, and (3) Waterfowl hunting on the marshlands and adjacent waters of the county. Public access to the mountain lakes is generally adequate with a few exceptions. A few of the larger lakes receive so much pressure from state-wide users that improved ramps and frontage roads would help to relieve crowded conditions. The U.S. Forest Service maintains many extensive campgrounds at the larger lakes and provides trail maintenance to most of the "pack-in" lakes. Reservoirs and lakes at the lower elevations, however, are in many cases surrounded by private ownership or/are utilized almost exclusively for irrigation purposes. In order to provide and maintain a fishery resource in many of these reservoirs a minimum pool will have to be secured in addition to providing boat and bank access. Waterfowl hunting will also be available at many sites where angling access is secured. Close