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• 1. [Article] Clear and Foster Creek Watershed Assessment

  Abstract -- A watershed assessment was completed in the Clear and Foster Creek watersheds to evaluate existing conditions and make recommendations to protect or enhance watershed natural resources. Clear ...

  Citation × Citation Citation Abstract Copy Title: Clear and Foster Creek Watershed Assessment Abstract -- A watershed assessment was completed in the Clear and Foster Creek watersheds to evaluate existing conditions and make recommendations to protect or enhance watershed natural resources. Clear and Foster Creek are tributaries to the Clackamas River below any major dams on the system; consequently these tributaries are positioned favorably to contribute to recovery of important anadromous fish populations. Anadromous fish species in the Clackamas basin include spring and fall chinook, coho salmon, winter steelhead, summer steelhead (non-native), migratory cutthroat trout and lamprey. Clear and Foster Creeks are utilized by fall chinook, winter steelhead and coho salmon. The assessment generally followed the framework described in the Oregon Watershed Enhancement Board’s Watershed Assessment Manual (WPN, 1999). The assessment focused on the following components: Channel habitat classification and modification; hydrology and water use; riparian/wetlands; sediment sources; water quality; fisheries; and wildlife and upland vegetation. Generally the approach builds on existing information, and enhances this information with aerial photo interpretation and limited field checking. Additional fieldwork was used to verify channel habitat types and to characterize fish habitat condition. GIS was used as a critical assessment tool and method of displaying results. Title: Clear and Foster Creek Watershed Assessment Abstract -- A watershed assessment was completed in the Clear and Foster Creek watersheds to evaluate existing conditions and make recommendations to protect or enhance watershed natural resources. Clear and Foster Creek are tributaries to the Clackamas River below any major dams on the system; consequently these tributaries are positioned favorably to contribute to recovery of important anadromous fish populations. Anadromous fish species in the Clackamas basin include spring and fall chinook, coho salmon, winter steelhead, summer steelhead (non-native), migratory cutthroat trout and lamprey. Clear and Foster Creeks are utilized by fall chinook, winter steelhead and coho salmon. The assessment generally followed the framework described in the Oregon Watershed Enhancement Board’s Watershed Assessment Manual (WPN, 1999). The assessment focused on the following components: Channel habitat classification and modification; hydrology and water use; riparian/wetlands; sediment sources; water quality; fisheries; and wildlife and upland vegetation. Generally the approach builds on existing information, and enhances this information with aerial photo interpretation and limited field checking. Additional fieldwork was used to verify channel habitat types and to characterize fish habitat condition. GIS was used as a critical assessment tool and method of displaying results. Close

• 2. [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

• 3. [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

• 4. [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

• 5. [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

• 6. [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

• 7. [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

• 8. [Article] Mahogany Creek Culvert Replacement Project Annual Monitoring Report

  Abstract -- This annual monitoring report covers activities under the Grande Ronde Model Watershed/Bonneville Power Administration contract No. 27255, entitled Mahogany Creek Culvert Replacement Project. ...

  Citation × Citation Citation Abstract Copy Title: Mahogany Creek Culvert Replacement Project Annual Monitoring Report Abstract -- This annual monitoring report covers activities under the Grande Ronde Model Watershed/Bonneville Power Administration contract No. 27255, entitled Mahogany Creek Culvert Replacement Project. Prior to the completion of this project, the Mahogany culvert was undersized, had an outlet drop of two feet and was considered a barrier to all life history stages of all aquatic species. The primary project objective was to replace the culvert with a 15 feet wide open-bottom arch that allows passage of all life stages of all aquatic species. The stream channel was reconstructed through the newly installed culvert utilizing stream simulation techniques. This project re-opened 3.5 miles of spawning and rearing habitat for Snake River steelhead, and rearing habitat for Chinook and bull trout, upstream of the structure. This project continues to meet project objectives one year post-implementation. Title: Mahogany Creek Culvert Replacement Project Annual Monitoring Report Abstract -- This annual monitoring report covers activities under the Grande Ronde Model Watershed/Bonneville Power Administration contract No. 27255, entitled Mahogany Creek Culvert Replacement Project. Prior to the completion of this project, the Mahogany culvert was undersized, had an outlet drop of two feet and was considered a barrier to all life history stages of all aquatic species. The primary project objective was to replace the culvert with a 15 feet wide open-bottom arch that allows passage of all life stages of all aquatic species. The stream channel was reconstructed through the newly installed culvert utilizing stream simulation techniques. This project re-opened 3.5 miles of spawning and rearing habitat for Snake River steelhead, and rearing habitat for Chinook and bull trout, upstream of the structure. This project continues to meet project objectives one year post-implementation. Close

• 9. [Article] Effectiveness Monitoring for LWD Placement in South Slough Tidal Wetlands (OWEB #205-111)

  Abstract -- Effectiveness monitoring of LWD placed in South Slough’s upper estuary wasdesigned to accomplish the following: - Determine presence/absence and behavior of juvenile salmonids (i.e., cohoand ...

  Citation × Citation Citation Abstract Copy Title: Effectiveness Monitoring for LWD Placement in South Slough Tidal Wetlands (OWEB #205-111) Abstract -- Effectiveness monitoring of LWD placed in South Slough’s upper estuary wasdesigned to accomplish the following: - Determine presence/absence and behavior of juvenile salmonids (i.e., cohoand cutthroat trout) in and around LWD using underwater videographyand acoustic tagging methods (a late addition to the project); - Monitor abundance and species composition of juvenile salmonids in tidal creeks with (and without) LWD using fyke nets; - Monitor fish use of other subtidal habitats with beach seines; - Track changes in invertebrate abundance and composition; - Detect wood movement with sub-meter GPS tracking; - Record changes in channel profile around LWD with detailed elevationsurveys; and, - Track water temperature and flow in locations near and away from LWD. Large woody debris was placed in 29 locations in South Slough’s upper estuary. The effectiveness monitoring project focused on 12 sites, six pairs based on configuration and location Title: Effectiveness Monitoring for LWD Placement in South Slough Tidal Wetlands (OWEB #205-111) Abstract -- Effectiveness monitoring of LWD placed in South Slough’s upper estuary wasdesigned to accomplish the following: - Determine presence/absence and behavior of juvenile salmonids (i.e., cohoand cutthroat trout) in and around LWD using underwater videographyand acoustic tagging methods (a late addition to the project); - Monitor abundance and species composition of juvenile salmonids in tidal creeks with (and without) LWD using fyke nets; - Monitor fish use of other subtidal habitats with beach seines; - Track changes in invertebrate abundance and composition; - Detect wood movement with sub-meter GPS tracking; - Record changes in channel profile around LWD with detailed elevationsurveys; and, - Track water temperature and flow in locations near and away from LWD. Large woody debris was placed in 29 locations in South Slough’s upper estuary. The effectiveness monitoring project focused on 12 sites, six pairs based on configuration and location Close

• 10. [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

• 11. [Article] Little Deschutes Subbasin Watershed Assessment

  Abstract -- Many of the impacts to fish and wildlife habitat and water quality in the Little Deschutes River Subbasin are concentrated in the areas of housing, roads, and other human development. Most ...

  Citation × Citation Citation Abstract Copy Title: Little Deschutes Subbasin Watershed Assessment Abstract -- Many of the impacts to fish and wildlife habitat and water quality in the Little Deschutes River Subbasin are concentrated in the areas of housing, roads, and other human development. Most of the human population in the subbasin is concentrated around the community centers of La Pine, Gilchrist, Crescent, and Crescent Lake. There is significant dispersed development along the lower reaches of the Little Deschutes River between the communities of Sunriver and La Pine -an area characterized by gentle topography and depressions with forested wetlands, marshes and shallow lakes. Streams in this area, as illustrated by the Little Deschutes River , are low gradient and originate in the high elevation areas in the southwest portion of the watershed where there is higher precipitation. This ownership pattern has significant implications for natural resource management, as lower gradient floodplain areas tend to provide important wetland, fish, and wildlife habitat. Key Findings Fuel Loading: Having homes safe from wildfires is a concern for many residents. Fire suppression has increased the amount of dry wood in the area, creating a ready source for major wildfires. Riparian Areas and Wetlands: Loss of wetland and riparian areas , especially in the lower areas along the Little Deschutes River , has affected a number of resources. Water quality has been affected by the reduced wetlands that act as filters of nitrogen; the loss of streamside trees and other vegetation reduces shade that helps to cool water temperatures. Finally, loss ofwetlands and riparian vegetation has reduced important fish and wildlife habitats. Wildlife: The growth and development have altered wildlife habitats. Loss of wetlands, streamside vegetation, and other changes in the watershed have reduced important wildlife habitat. Roads and development have impacted migrating mule deer, increasing collisions between deer and cars and altering their migration pathways. Fish: There has been a significant loss of native trout and an increase in introduced brook and brown trout in the Little Deschutes River and tributaries. Loss of native trout is from competition with introduced species and changes in aquatic habitat and water temperatures. Water Quality: A major concern about the water in the river is unusually high temperatures in the summer and the abnormal growth of algae. Other studies indicated that there are problems with groundwater loading ofnitrogen. The high water table (with associated wetlands), and porous pumice soils contributes to increased nitrates, a by-product of septic systems and an indicator of human pathogens. Title: Little Deschutes Subbasin Watershed Assessment Abstract -- Many of the impacts to fish and wildlife habitat and water quality in the Little Deschutes River Subbasin are concentrated in the areas of housing, roads, and other human development. Most of the human population in the subbasin is concentrated around the community centers of La Pine, Gilchrist, Crescent, and Crescent Lake. There is significant dispersed development along the lower reaches of the Little Deschutes River between the communities of Sunriver and La Pine -an area characterized by gentle topography and depressions with forested wetlands, marshes and shallow lakes. Streams in this area, as illustrated by the Little Deschutes River , are low gradient and originate in the high elevation areas in the southwest portion of the watershed where there is higher precipitation. This ownership pattern has significant implications for natural resource management, as lower gradient floodplain areas tend to provide important wetland, fish, and wildlife habitat. Key Findings Fuel Loading: Having homes safe from wildfires is a concern for many residents. Fire suppression has increased the amount of dry wood in the area, creating a ready source for major wildfires. Riparian Areas and Wetlands: Loss of wetland and riparian areas , especially in the lower areas along the Little Deschutes River , has affected a number of resources. Water quality has been affected by the reduced wetlands that act as filters of nitrogen; the loss of streamside trees and other vegetation reduces shade that helps to cool water temperatures. Finally, loss ofwetlands and riparian vegetation has reduced important fish and wildlife habitats. Wildlife: The growth and development have altered wildlife habitats. Loss of wetlands, streamside vegetation, and other changes in the watershed have reduced important wildlife habitat. Roads and development have impacted migrating mule deer, increasing collisions between deer and cars and altering their migration pathways. Fish: There has been a significant loss of native trout and an increase in introduced brook and brown trout in the Little Deschutes River and tributaries. Loss of native trout is from competition with introduced species and changes in aquatic habitat and water temperatures. Water Quality: A major concern about the water in the river is unusually high temperatures in the summer and the abnormal growth of algae. Other studies indicated that there are problems with groundwater loading ofnitrogen. The high water table (with associated wetlands), and porous pumice soils contributes to increased nitrates, a by-product of septic systems and an indicator of human pathogens. Close

• 12. [Article] Upper Chewaucan Watershed Assessment

  Abstract -- Several assessment elements have good overall ratings and include the following: riparian vegetation/bank stability, Rosgen stream types, and pool numbers. However, the remaining elements need ...

  Citation × Citation Citation Abstract Copy Title: Upper Chewaucan Watershed Assessment Abstract -- Several assessment elements have good overall ratings and include the following: riparian vegetation/bank stability, Rosgen stream types, and pool numbers. However, the remaining elements need significant improvement to reach desired levels of high canopy coverage in forested sites, dense juniper woodlands, moderate road densities, lack of LWD, moderate to high stream temperatures, moderate to high spawning gravel fines, and culvert barriers. The less than desired conditions of these elements inhibit the Upper Chewaucan River Watershed from functioning appropriately as a redband trout reserve. As a result, this assessment element is functioning appropriately but-at-risk. Title: Upper Chewaucan Watershed Assessment Abstract -- Several assessment elements have good overall ratings and include the following: riparian vegetation/bank stability, Rosgen stream types, and pool numbers. However, the remaining elements need significant improvement to reach desired levels of high canopy coverage in forested sites, dense juniper woodlands, moderate road densities, lack of LWD, moderate to high stream temperatures, moderate to high spawning gravel fines, and culvert barriers. The less than desired conditions of these elements inhibit the Upper Chewaucan River Watershed from functioning appropriately as a redband trout reserve. As a result, this assessment element is functioning appropriately but-at-risk. Close

• 13. [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

• 14. [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

• 15. [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

• 16. [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

• 17. [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

• 18. [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

• 19. [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

• 20. [Article] LCMP - Fish Habitat Restoration in Tenmile Creek

  Abstract -- The Tenmile Watershed Restoration Study was initiated in 1991 to examine the effects of watershed restoration activities in Tenmile Creek (including the addition of large wood into the stream ...

  Citation × Citation Citation Abstract Copy Title: LCMP - Fish Habitat Restoration in Tenmile Creek Abstract -- The Tenmile Watershed Restoration Study was initiated in 1991 to examine the effects of watershed restoration activities in Tenmile Creek (including the addition of large wood into the stream channel) on the production of downstream migrant salmonids, particularly steelhead and cutthroat trout. This study combines a treatment(Tenmile Creek) and control (Cummins Creek) stream approach with a pre- and postproject evaluation. Tenmile Creek and Cummins Creek are both ocean tributary streams on the central Oregon coast. Pre treatment sampling of fish populations and habitat in Tenmile and Cummins creeks began in 1991. Most of the restoration activities in the Tenmile Creek study took place in 1996, and the post-restoration sampling of fish populations and habitat is ongoing in Tenmile Creek and the control stream, Cummins Creek. Title: LCMP - Fish Habitat Restoration in Tenmile Creek Abstract -- The Tenmile Watershed Restoration Study was initiated in 1991 to examine the effects of watershed restoration activities in Tenmile Creek (including the addition of large wood into the stream channel) on the production of downstream migrant salmonids, particularly steelhead and cutthroat trout. This study combines a treatment(Tenmile Creek) and control (Cummins Creek) stream approach with a pre- and postproject evaluation. Tenmile Creek and Cummins Creek are both ocean tributary streams on the central Oregon coast. Pre treatment sampling of fish populations and habitat in Tenmile and Cummins creeks began in 1991. Most of the restoration activities in the Tenmile Creek study took place in 1996, and the post-restoration sampling of fish populations and habitat is ongoing in Tenmile Creek and the control stream, Cummins Creek. Close

• 21. [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

• 22. [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

• 23. [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

• 24. [Article] CRTCP - Monitoring of Downstream Fish Passage at Cougar Dam in the South Fork McKenzie River, Oregon 1998-00

  Abstract -- In 1993, Oregon Department of Fish and Wildlife (ODFW) began placing adult chinook salmon that were excess to hatchery operations at McKenzie and Willamette Hatchery above Cougar Dam in an ...

  Citation × Citation Citation Abstract Copy Title: CRTCP - Monitoring of Downstream Fish Passage at Cougar Dam in the South Fork McKenzie River, Oregon 1998-00 Abstract -- In 1993, Oregon Department of Fish and Wildlife (ODFW) began placing adult chinook salmon that were excess to hatchery operations at McKenzie and Willamette Hatchery above Cougar Dam in an attempt to restore some of the biological contributions salmon made to the ecology of the South Fork McKenzie River prior to Cougar Dam construction (Table 1). Contributions included increased nutrient input to the ecosystem and an additional food source for predators, including bull trout. In addition, the progeny of these adult salmon provided a landlocked chinook fishery in the reservoir and ODFW was able to discontinue annual releases of juvenile salmon reared in ODFW hatcheries (1996). ODFW assumed most of the salmon attempting to leave the reservoir would be killed by various means upon passage through the turbines or regulating outlet. Between 1994-97, ODFW field observations provided circumstantial evidence that some juvenile chinook were surviving passage through the dam. In 1998, we began monitoring juvenile chinook migration out of the reservoir to determine the number, size, age, and mortality rate of fish passing through the turbines and regulating outlet of Cougar Dam. Title: CRTCP - Monitoring of Downstream Fish Passage at Cougar Dam in the South Fork McKenzie River, Oregon 1998-00 Abstract -- In 1993, Oregon Department of Fish and Wildlife (ODFW) began placing adult chinook salmon that were excess to hatchery operations at McKenzie and Willamette Hatchery above Cougar Dam in an attempt to restore some of the biological contributions salmon made to the ecology of the South Fork McKenzie River prior to Cougar Dam construction (Table 1). Contributions included increased nutrient input to the ecosystem and an additional food source for predators, including bull trout. In addition, the progeny of these adult salmon provided a landlocked chinook fishery in the reservoir and ODFW was able to discontinue annual releases of juvenile salmon reared in ODFW hatcheries (1996). ODFW assumed most of the salmon attempting to leave the reservoir would be killed by various means upon passage through the turbines or regulating outlet. Between 1994-97, ODFW field observations provided circumstantial evidence that some juvenile chinook were surviving passage through the dam. In 1998, we began monitoring juvenile chinook migration out of the reservoir to determine the number, size, age, and mortality rate of fish passing through the turbines and regulating outlet of Cougar Dam. Close

• 25. [Article] The Distribution and Abundance of Great Basin Redband Trout: An Application of Variable Probability Sampling in a 1999 Status Review

  Abstract -- Using a variable probability sampling design, streams throughout the entire range of Great Basin redband trout (Oncorhynchus mykiss ssp.) were randomly sampled use the EMAP sampling protocol, ...

  Citation × Citation Citation Abstract Copy Title: The Distribution and Abundance of Great Basin Redband Trout: An Application of Variable Probability Sampling in a 1999 Status Review Abstract -- Using a variable probability sampling design, streams throughout the entire range of Great Basin redband trout (Oncorhynchus mykiss ssp.) were randomly sampled use the EMAP sampling protocol, such that 35 sample sites were apportioned to each of six subbasins (Silver Lake, Lake Abert, Goose Lake, Warner Valley, Catlow Valley, and Malheur Lakes). A total of 185 sites (out of a target of 210) were visited by three-person crews that conducted habitat surveys and population estimates in sample reaches whose length were nearly 20 times their channel width. A minimal sampling intensity was based on previously encountered levels of between site variance in abundance estimates for the species. The population estimate for age 1+ redband trout was 948,852 fish (+/– 21%), with confidence limits ranging from 26% to 43% of individual subbasin estimates. Age 1+ fish abundance in terms of density (fish m-2) showed no significant differences between any subbasin, while there were significant differences in biomass (g m-2), where one subbasin had significantly higher (Catlow Valley) biomasses, and one significantly lower (Goose Lake). These comparisons were supported by like differences in mean weight (g fish-2). Analysis of stream habitat characteristics and fish abundance revealed no relationship, or model, that was generally consistent throughout the Great Basin, though interpretable patterns were evident within some stream systems where sampling intensity happened to be sufficiently high. Thus while a landscape level sampling design was well suited to address a regional estimate of abundance, useful interpretation of fish and habitat relationships appeared to be embedded within the stream level of organization, and could not be addressed by the variable probability sampling design set for a minimal sampling intensity. Title: The Distribution and Abundance of Great Basin Redband Trout: An Application of Variable Probability Sampling in a 1999 Status Review Abstract -- Using a variable probability sampling design, streams throughout the entire range of Great Basin redband trout (Oncorhynchus mykiss ssp.) were randomly sampled use the EMAP sampling protocol, such that 35 sample sites were apportioned to each of six subbasins (Silver Lake, Lake Abert, Goose Lake, Warner Valley, Catlow Valley, and Malheur Lakes). A total of 185 sites (out of a target of 210) were visited by three-person crews that conducted habitat surveys and population estimates in sample reaches whose length were nearly 20 times their channel width. A minimal sampling intensity was based on previously encountered levels of between site variance in abundance estimates for the species. The population estimate for age 1+ redband trout was 948,852 fish (+/– 21%), with confidence limits ranging from 26% to 43% of individual subbasin estimates. Age 1+ fish abundance in terms of density (fish m-2) showed no significant differences between any subbasin, while there were significant differences in biomass (g m-2), where one subbasin had significantly higher (Catlow Valley) biomasses, and one significantly lower (Goose Lake). These comparisons were supported by like differences in mean weight (g fish-2). Analysis of stream habitat characteristics and fish abundance revealed no relationship, or model, that was generally consistent throughout the Great Basin, though interpretable patterns were evident within some stream systems where sampling intensity happened to be sufficiently high. Thus while a landscape level sampling design was well suited to address a regional estimate of abundance, useful interpretation of fish and habitat relationships appeared to be embedded within the stream level of organization, and could not be addressed by the variable probability sampling design set for a minimal sampling intensity. Close

• 26. [Article] AI - Year 2000 Stream Habitat Conditions in Western Oregon

  Abstract -- The goals of the habitat monitoring portion of the Oregon Plan program are to develop baseline statistics, describe current conditions and track trends in habitat condition over time. This ...

  Citation × Citation Citation Abstract Copy Title: AI - Year 2000 Stream Habitat Conditions in Western Oregon Abstract -- The goals of the habitat monitoring portion of the Oregon Plan program are to develop baseline statistics, describe current conditions and track trends in habitat condition over time. This program functions as the landscape link in the overall Oregon Plan monitoring program. Field work for the habitat monitoring program began in 1998 with coordinated site visitations conducted with the two other Oregon Plan monitoring programs; juvenile rearing survey and adult salmon spawning survey programs. The Oregon Plan Habitat Survey program is nested within the Aquatic Inventories Project (AIP). The AIP was begun by the Oregon Department of Fish and Wildlife (ODFW) in 1990 and has expanded to include a wide variety of inventory, modeling and monitoring efforts. The central purpose of these diverse projects is the inventory of physical aspects of the environment that are important for aquatic life and the habitat needs of salmonids and other fishes during the freshwater stages of their life history. Some of the significant ongoing or recently completed projects that are part of the AIP are: Basinwide cesus surveys, Oregon plan Habitat surveys, Restoration Project Monitoring, Salmonid Habitat and Diversity Watersheds Project, Fish Inventories, Great Basin Redband Trout, Oregon Chub Status and Recovery Project, Salmon River Estuary, and Columbia River Estuary Project. Title: AI - Year 2000 Stream Habitat Conditions in Western Oregon Abstract -- The goals of the habitat monitoring portion of the Oregon Plan program are to develop baseline statistics, describe current conditions and track trends in habitat condition over time. This program functions as the landscape link in the overall Oregon Plan monitoring program. Field work for the habitat monitoring program began in 1998 with coordinated site visitations conducted with the two other Oregon Plan monitoring programs; juvenile rearing survey and adult salmon spawning survey programs. The Oregon Plan Habitat Survey program is nested within the Aquatic Inventories Project (AIP). The AIP was begun by the Oregon Department of Fish and Wildlife (ODFW) in 1990 and has expanded to include a wide variety of inventory, modeling and monitoring efforts. The central purpose of these diverse projects is the inventory of physical aspects of the environment that are important for aquatic life and the habitat needs of salmonids and other fishes during the freshwater stages of their life history. Some of the significant ongoing or recently completed projects that are part of the AIP are: Basinwide cesus surveys, Oregon plan Habitat surveys, Restoration Project Monitoring, Salmonid Habitat and Diversity Watersheds Project, Fish Inventories, Great Basin Redband Trout, Oregon Chub Status and Recovery Project, Salmon River Estuary, and Columbia River Estuary Project. Close

• 27. [Image] Memorandum: John E. Doerr writing to Crater Lake National Park Superintendent, 1938

  	Memorandum to Superintendent Leavitt dated May 16, 1938 also mentions, Fish and Fishing in Crater Lake, (Mr. Madsen's letter of May 9, 1938); "John E Doerr, Jr., Park-Naturalist."
  	Citation × Citation Citation Abstract Copy Title: Memorandum: John E. Doerr writing to Crater Lake National Park Superintendent, 1938 Author: Doerr, John E., Jr. Year: 1938, 2010 Memorandum to Superintendent Leavitt dated May 16, 1938 also mentions, Fish and Fishing in Crater Lake, (Mr. Madsen's letter of May 9, 1938); "John E Doerr, Jr., Park-Naturalist." Title: Memorandum: John E. Doerr writing to Crater Lake National Park Superintendent, 1938 Author: Doerr, John E., Jr. Year: 1938, 2010 Memorandum to Superintendent Leavitt dated May 16, 1938 also mentions, Fish and Fishing in Crater Lake, (Mr. Madsen's letter of May 9, 1938); "John E Doerr, Jr., Park-Naturalist." Close

• 28. [Image] The growth of trout and salmon in Crater Lake, Oregon and its bearing on fish management

  	Citation × Citation Citation Abstract Copy Title: The growth of trout and salmon in Crater Lake, Oregon and its bearing on fish management Author: United States. National Park Service Year: 1938, 2010 Title: The growth of trout and salmon in Crater Lake, Oregon and its bearing on fish management Author: United States. National Park Service Year: 1938, 2010 Close

• 29. [Image] Report on fish stomach contents analyzed during the summer of 1956

  	"Dick S. Baird, Seasonal Ranger Naturalist."
  	Citation × Citation Citation Abstract Copy Title: Report on fish stomach contents analyzed during the summer of 1956 Author: Baird, Dick S. Year: 1956, 2010 "Dick S. Baird, Seasonal Ranger Naturalist." Title: Report on fish stomach contents analyzed during the summer of 1956 Author: Baird, Dick S. Year: 1956, 2010 "Dick S. Baird, Seasonal Ranger Naturalist." Close

• 30. [Image] A report on Crater Lake water quality: Crater Lake National Park, Oregon, 1988-1989

  	1982-2002; ill, maps; Report title; CA 9000-3-0003 Subagreement 8; Includes appendices: Crater Lake Liminological Studies 1988 and 1989; "Submitted by Robert E. Benton, Superintendent Crater Lake National ...
  	Citation × Citation Citation Abstract Copy Title: A report on Crater Lake water quality: Crater Lake National Park, Oregon, 1988-1989 Author: National Park Service, Crater Lake National Park Year: 1988, 2009 1982-2002; ill, maps; Report title; CA 9000-3-0003 Subagreement 8; Includes appendices: Crater Lake Liminological Studies 1988 and 1989; "Submitted by Robert E. Benton, Superintendent Crater Lake National Park." - T.p.; Includes bibliographical references; Issues lack volume numbering Title: A report on Crater Lake water quality: Crater Lake National Park, Oregon, 1988-1989 Author: National Park Service, Crater Lake National Park Year: 1988, 2009 1982-2002; ill, maps; Report title; CA 9000-3-0003 Subagreement 8; Includes appendices: Crater Lake Liminological Studies 1988 and 1989; "Submitted by Robert E. Benton, Superintendent Crater Lake National Park." - T.p.; Includes bibliographical references; Issues lack volume numbering Close

• 31. [Image] Crater Lake limnological studies: final report

  	ill., maps; July 1993."; "Cooperative Park Studies Unit, College of Forestry, Oregon State University."; Includes bibliographical references.; This title is a culmination of the first 10-years of the Crater ...
  	Citation × Citation Citation Abstract Copy Title: Crater Lake limnological studies: final report Author: Gary L. Larson; McIntire, David C.; Jacobs, Ruth W; Year: 1993, 2009 ill., maps; July 1993."; "Cooperative Park Studies Unit, College of Forestry, Oregon State University."; Includes bibliographical references.; This title is a culmination of the first 10-years of the Crater Lake limnological studies and a long-term monitoring proposal to investigate new hypotheses. Title: Crater Lake limnological studies: final report Author: Gary L. Larson; McIntire, David C.; Jacobs, Ruth W; Year: 1993, 2009 ill., maps; July 1993."; "Cooperative Park Studies Unit, College of Forestry, Oregon State University."; Includes bibliographical references.; This title is a culmination of the first 10-years of the Crater Lake limnological studies and a long-term monitoring proposal to investigate new hypotheses. Close

• 32. [Image] Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon)

  	ill.; Thesis (M.S.)-Oregon State University, 1988; Includes bibliographical references (leaves 74-80)
  	Citation × Citation Citation Abstract Copy Title: Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon) Author: Buktenica, M. W., (Mark W.) Year: 1988, 2009 ill.; Thesis (M.S.)-Oregon State University, 1988; Includes bibliographical references (leaves 74-80) Title: Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon) Author: Buktenica, M. W., (Mark W.) Year: 1988, 2009 ill.; Thesis (M.S.)-Oregon State University, 1988; Includes bibliographical references (leaves 74-80) Close

• 33. [Image] The pine beetle situation-Klamath Indian Reservation Emergency Conservation Work report

  	ill.; "Harold Weaver (1903?-1983) was an American forester best known for his work on prescribed burning." - Forest History Society website;
  	Citation × Citation Citation Abstract Copy Title: The pine beetle situation-Klamath Indian Reservation Emergency Conservation Work report Author: Weaver, Harold; 1903?-1983 Year: 1934, 2010 ill.; "Harold Weaver (1903?-1983) was an American forester best known for his work on prescribed burning." - Forest History Society website; Title: The pine beetle situation-Klamath Indian Reservation Emergency Conservation Work report Author: Weaver, Harold; 1903?-1983 Year: 1934, 2010 ill.; "Harold Weaver (1903?-1983) was an American forester best known for his work on prescribed burning." - Forest History Society website; Close

• 34. [Image] Memorandum on fishing, 1941

  	Date of memorandum: September 3, 1941; "Donald S. Farner, Ranger-Naturalist."
  	Citation × Citation Citation Abstract Copy Title: Memorandum on fishing, 1941 Author: Farner, Donald Sankey, 1915- Year: 1941, 2010 Date of memorandum: September 3, 1941; "Donald S. Farner, Ranger-Naturalist." Title: Memorandum on fishing, 1941 Author: Farner, Donald Sankey, 1915- Year: 1941, 2010 Date of memorandum: September 3, 1941; "Donald S. Farner, Ranger-Naturalist." Close

• 35. [Image] Memorandum on fishing [August 1948]

  	Date of memorandum: August 4, 1948; Includes: "Creel Census Report for July, 1948."; "Donald S. Farner, Ranger-Naturalist."
  	Citation × Citation Citation Abstract Copy Title: Memorandum on fishing [August 1948] Author: Farner, Donald Sankey, 1915- Year: 1948, 2010 Date of memorandum: August 4, 1948; Includes: "Creel Census Report for July, 1948."; "Donald S. Farner, Ranger-Naturalist." Title: Memorandum on fishing [August 1948] Author: Farner, Donald Sankey, 1915- Year: 1948, 2010 Date of memorandum: August 4, 1948; Includes: "Creel Census Report for July, 1948."; "Donald S. Farner, Ranger-Naturalist." Close

• 36. [Image] Memorandum on fish stocking policy for Crater Lake

  	Date of memorandum: July 27, 1940; "Donald S. Farner, Ranger-Naturalist."
  	Citation × Citation Citation Abstract Copy Title: Memorandum on fish stocking policy for Crater Lake Author: Farner, Donald Sankey, 1915- Year: 1940, 2010 Date of memorandum: July 27, 1940; "Donald S. Farner, Ranger-Naturalist." Title: Memorandum on fish stocking policy for Crater Lake Author: Farner, Donald Sankey, 1915- Year: 1940, 2010 Date of memorandum: July 27, 1940; "Donald S. Farner, Ranger-Naturalist." Close

• 37. [Image] Memorandum on fishing, 1950

  	Date of memorandum: September 15, 1950; "R.S. Robinson, Ranger-Naturalist."; Includes: "Creel Census Report for July and August, 1950."
  	Citation × Citation Citation Abstract Copy Title: Memorandum on fishing, 1950 Author: Robinson, R.S. Year: 1950, 2010 Date of memorandum: September 15, 1950; "R.S. Robinson, Ranger-Naturalist."; Includes: "Creel Census Report for July and August, 1950." Title: Memorandum on fishing, 1950 Author: Robinson, R.S. Year: 1950, 2010 Date of memorandum: September 15, 1950; "R.S. Robinson, Ranger-Naturalist."; Includes: "Creel Census Report for July and August, 1950." Close

• 38. [Image] Fish liberations in Crater Lake, Crater Lake National Park

  	Fish liberations are in Crater Lake and the following streams of Crater Lake National Park: Annie, Bybee, Copeland, Castle, National, Sun, Redblanket, Munson, Lost, Bear, Sand and Crater Creeks.
  	Citation × Citation Citation Abstract Copy Title: Fish liberations in Crater Lake, Crater Lake National Park Author: United States. National Park Service Year: 1940, 2010 Fish liberations are in Crater Lake and the following streams of Crater Lake National Park: Annie, Bybee, Copeland, Castle, National, Sun, Redblanket, Munson, Lost, Bear, Sand and Crater Creeks. Title: Fish liberations in Crater Lake, Crater Lake National Park Author: United States. National Park Service Year: 1940, 2010 Fish liberations are in Crater Lake and the following streams of Crater Lake National Park: Annie, Bybee, Copeland, Castle, National, Sun, Redblanket, Munson, Lost, Bear, Sand and Crater Creeks. Close

• 39. [Image] Fish planted in Crater Lake

  	Stocking dates include 1888, 1910, 1914, 1922-1939
  	Citation × Citation Citation Abstract Copy Title: Fish planted in Crater Lake Author: United States. National Park Service Year: 1939, 2010 Stocking dates include 1888, 1910, 1914, 1922-1939 Title: Fish planted in Crater Lake Author: United States. National Park Service Year: 1939, 2010 Stocking dates include 1888, 1910, 1914, 1922-1939 Close

• 40. [Image] Fish liberations in Crater Lake

  	"No fish have been planted in the lake since 1941. (1967)"; Stocking dates include 1910, 1914, 1922-1941
  	Citation × Citation Citation Abstract Copy Title: Fish liberations in Crater Lake Author: United States. National Park Service. Year: 1967, 2010 "No fish have been planted in the lake since 1941. (1967)"; Stocking dates include 1910, 1914, 1922-1941 Title: Fish liberations in Crater Lake Author: United States. National Park Service. Year: 1967, 2010 "No fish have been planted in the lake since 1941. (1967)"; Stocking dates include 1910, 1914, 1922-1941 Close

• 41. [Image] Memorandum on fishing for the season of 1952

  	"C. Warren Fairbanks, Ranger Naturalist."
  	Citation × Citation Citation Abstract Copy Title: Memorandum on fishing for the season of 1952 Author: Fairbanks, C. Warren Year: 1952, 2010 "C. Warren Fairbanks, Ranger Naturalist." Title: Memorandum on fishing for the season of 1952 Author: Fairbanks, C. Warren Year: 1952, 2010 "C. Warren Fairbanks, Ranger Naturalist." Close

• 42. [Image] Distribution and habitat use of bull trout following the removal of nonnative brook trout

  	ill.; Printout; Thesis (M.S.)--Oregon State University, 2006; Includes bibliographical references (leaves 55-61)
  	Citation × Citation Citation Abstract Copy Title: Distribution and habitat use of bull trout following the removal of nonnative brook trout Author: Renner, Dirk Year: 2005, 2009 ill.; Printout; Thesis (M.S.)--Oregon State University, 2006; Includes bibliographical references (leaves 55-61) Title: Distribution and habitat use of bull trout following the removal of nonnative brook trout Author: Renner, Dirk Year: 2005, 2009 ill.; Printout; Thesis (M.S.)--Oregon State University, 2006; Includes bibliographical references (leaves 55-61) Close

• 43. [Image] Crater Lake National Park bull trout restoration program: status review and study plan

  	ill.; Report title; "Prepared for: U.S. Fish and Wildlife Service, Klamath Falls, Oregon." - T.p.; Includes bibliographic references
  	Citation × Citation Citation Abstract Copy Title: Crater Lake National Park bull trout restoration program: status review and study plan Author: Buktenica, Mark Year: 2000, 2010 ill.; Report title; "Prepared for: U.S. Fish and Wildlife Service, Klamath Falls, Oregon." - T.p.; Includes bibliographic references Title: Crater Lake National Park bull trout restoration program: status review and study plan Author: Buktenica, Mark Year: 2000, 2010 ill.; Report title; "Prepared for: U.S. Fish and Wildlife Service, Klamath Falls, Oregon." - T.p.; Includes bibliographic references Close

• 44. [Image] The Bull trout (salvelinus confluentus) population within Crater Lake National Park: summarized information relating to its conservation and perpetuation

  	ill.,; Report title; "On October 7 and 8, 1991 an advisory panel\recovery team met at Crater Lake National Park to review the status of the park's only native fish population, and to develop recommendations ...
  	Citation × Citation Citation Abstract Copy Title: The Bull trout (salvelinus confluentus) population within Crater Lake National Park: summarized information relating to its conservation and perpetuation Author: Pister, Edwin P. Year: 1992, 2010 ill.,; Report title; "On October 7 and 8, 1991 an advisory panel\recovery team met at Crater Lake National Park to review the status of the park's only native fish population, and to develop recommendations for a recovery program to restore the Sun Creek Bull Trout population to historic range and abundance within Crater Lake National Park." - P. [ii].; Title: The Bull trout (salvelinus confluentus) population within Crater Lake National Park: summarized information relating to its conservation and perpetuation Author: Pister, Edwin P. Year: 1992, 2010 ill.,; Report title; "On October 7 and 8, 1991 an advisory panel\recovery team met at Crater Lake National Park to review the status of the park's only native fish population, and to develop recommendations for a recovery program to restore the Sun Creek Bull Trout population to historic range and abundance within Crater Lake National Park." - P. [ii].; Close

• 45. [Image] Bull trout recovery program for Sun Creek Crater Lake National Park, Oregon

  	ill.; Report title; "Crater Lake National Park RMP Number: CRLA N-016.101." - P. 1.; Includes bibliographic references
  	Citation × Citation Citation Abstract Copy Title: Bull trout recovery program for Sun Creek Crater Lake National Park, Oregon Author: Buktenica, Mark Year: 2010 ill.; Report title; "Crater Lake National Park RMP Number: CRLA N-016.101." - P. 1.; Includes bibliographic references Title: Bull trout recovery program for Sun Creek Crater Lake National Park, Oregon Author: Buktenica, Mark Year: 2010 ill.; Report title; "Crater Lake National Park RMP Number: CRLA N-016.101." - P. 1.; Includes bibliographic references Close

• 46. [Image] Trout Farming in Montana

  	Due to the abundant supply of clean fresh water, many areas of Montana are natural locations for trout farming. Many trout ponds are planted and maintained privately for the sole use of the owner; however, ...
  	Citation × Citation Citation Abstract Copy Title: Trout Farming in Montana Author: Quarve, P.L. Year: 1973 Due to the abundant supply of clean fresh water, many areas of Montana are natural locations for trout farming. Many trout ponds are planted and maintained privately for the sole use of the owner; however, the opportunity exists for commercial trout farming in Montana. Some commercial trout farming is currently being done, but this is only a small fraction of what could be developed Title: Trout Farming in Montana Author: Quarve, P.L. Year: 1973 Due to the abundant supply of clean fresh water, many areas of Montana are natural locations for trout farming. Many trout ponds are planted and maintained privately for the sole use of the owner; however, the opportunity exists for commercial trout farming in Montana. Some commercial trout farming is currently being done, but this is only a small fraction of what could be developed Close

• 47. [Image] Trout studies and a stream survey of Crater Lake National Park, Oregon

  	Ill., map; Typescript; Map of Crater Lake National Park and vicinity, issued by the U.S. Geological Survey, edition of 1946; Thesis (M.S.)--Oregon State College, 1948; Includes bibliographical references ...
  	Citation × Citation Citation Abstract Copy Title: Trout studies and a stream survey of Crater Lake National Park, Oregon Author: Wallis, O. L. Year: 1948, 2008 Ill., map; Typescript; Map of Crater Lake National Park and vicinity, issued by the U.S. Geological Survey, edition of 1946; Thesis (M.S.)--Oregon State College, 1948; Includes bibliographical references (leaves 118-120) Title: Trout studies and a stream survey of Crater Lake National Park, Oregon Author: Wallis, O. L. Year: 1948, 2008 Ill., map; Typescript; Map of Crater Lake National Park and vicinity, issued by the U.S. Geological Survey, edition of 1946; Thesis (M.S.)--Oregon State College, 1948; Includes bibliographical references (leaves 118-120) Close

• 48. [Image] Memorandum on fishing

  	ill.; Date of memorandum: September 3, 1947; "Orthello L. Wallis, Ranger-Naturalist."
  	Citation × Citation Citation Abstract Copy Title: Memorandum on fishing Author: Wallis, Orthello L. Year: 1947, 2008 ill.; Date of memorandum: September 3, 1947; "Orthello L. Wallis, Ranger-Naturalist." Title: Memorandum on fishing Author: Wallis, Orthello L. Year: 1947, 2008 ill.; Date of memorandum: September 3, 1947; "Orthello L. Wallis, Ranger-Naturalist." Close

• 49. [Image] Occurrence of sockeye salmon in Crater Lake, Oregon

  	ill.; Report title
  	Citation × Citation Citation Abstract Copy Title: Occurrence of sockeye salmon in Crater Lake, Oregon Author: Wallis, Orthello L. Year: 1948, 2008 ill.; Report title Title: Occurrence of sockeye salmon in Crater Lake, Oregon Author: Wallis, Orthello L. Year: 1948, 2008 ill.; Report title Close

• 50. [Image] Fish study - 1958

  	ill.; "Norman D. Wild, Ranger-Naturalist"
  	Citation × Citation Citation Abstract Copy Title: Fish study - 1958 Author: Wild, Norman D. Year: 1958, 2008 ill.; "Norman D. Wild, Ranger-Naturalist" Title: Fish study - 1958 Author: Wild, Norman D. Year: 1958, 2008 ill.; "Norman D. Wild, Ranger-Naturalist" Close