Search

Search Results

• 5341. [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

• 5342. [Article] Warner Valley Fish Investigations- Warner Suckers Progress Reports 2008

  Abstract -- The Warner sucker (Catostomus warnerensis) is endemic to the Warner Valley, an endorheic subbasin of the Great Basin in southeastern Oregon and northwestern Nevada. This species was historically ...

  Citation × Citation Citation Abstract Copy Title: Warner Valley Fish Investigations- Warner Suckers Progress Reports 2008 Abstract -- The Warner sucker (Catostomus warnerensis) is endemic to the Warner Valley, an endorheic subbasin of the Great Basin in southeastern Oregon and northwestern Nevada. This species was historically abundant and its historical range includes three permanent lakes (Hart, Crump, and Pelican), several ephemeral lakes, a network of sloughs and diversion canals, and three major tributary drainages (Honey, Deep, and Twentymile Creeks). Warner sucker abundance and distribution has declined over the past century and it was federally listed as threatened in 1985 due to habitat fragmentation and threats posed by the proliferation of piscivorous non-native game fishes (U.S. Fish and Wildlife Service 1985). The Warner Valley is a northeast-southwest trending endorheic basin which extends approximately 90 km (Figure 1). The elevation of the valley floor is approximately 1,370 m and the basin is bound by fault block escarpments, the Warner Rim on the west and Hart Mountain and Poker Jim Ridge on the east. The Warner basin was formed during the middle Tertiary and late Quaternary geologic periods as a result of volcanic and tectonic activity (Baldwin 1976). Abundant precipitation during the Pleistocene Epoch resulted in the formation of Pluvial Lake Warner (Hubbs and Miller 1948). At its maximum extent approximately 11,000 years ago, the lake reached approximately 100 m in depth and 1,300 km2 in area (Snyder et al. 1964, Weide 1975). In 2008, precipitation and snow pack were near average and Hart and Crump Lakes never filled completely. In 2007, Crump Lake water levels were very low with less than a quarter of the surface area wetted during the winter. Both lakes have been watered continuously since 1993. The Warner sucker inhabits the lakes and low gradient stream reaches of the Warner Valley. Two life history forms are present that comprise the metapopulation of Warner suckers: lake and stream morphs. The lake suckers are lacustrine adfluvial or potamodromous fish which normally spawn in the streams. However, upstream migration may be blocked by low stream flows during dry water years or by irrigation diversion dams and spawning may occur in nearshore areas of the lakes (White et al. 1990). The stream suckers inhabit and spawn in the three major tributary drainages (Honey, Deep, and Twentymile Creeks). Large lake-dwelling populations of introduced fishes in the lakes likely reduce sucker recruitment by predation on young suckers (U.S. Fish and Wildlife Service 1998). The Recovery Plan for the Threatened and Rare Native Fishes of the Warner Basin and Alkali Subbasin (U.S. Fish and Wildlife Service 1998) sets recovery criteria for delisting the species. These criteria require that (1) a self-sustaining metapopulation is distributed throughout the Twentymile, Honey, and Deep Creek (below the falls) drainages, and in Pelican, Crump, and Hart Lakes, (2) passage is restored within and among the Twentymile, Honey, and Deep Creek (below the falls) drainages so that the individual populations of Warner suckers can function as a metapopulation, and (3) no threats exist that would likely threaten the survival of the species over a significant portion of its range. In 2008, we conducted investigations in Hart and Crump Lakes to quantify the abundance and distribution of Warner suckers, to search for evidence of recent recruitment, and to estimate sucker abundance relative to nonnative fish abundance. In addition we investigated growth and movement patterns. We used Passive Integrated Transponder (PIT) tagged suckers to determine growth rates and movements, tracked radio-tagged suckers to document seasonal spawning migrations, fished a screw trap in Twelvemile Creek to monitor downstream movements, and operated a trap at the Dyke diversion dam on Twentymile Creek to monitor upstream movements. Title: Warner Valley Fish Investigations- Warner Suckers Progress Reports 2008 Abstract -- The Warner sucker (Catostomus warnerensis) is endemic to the Warner Valley, an endorheic subbasin of the Great Basin in southeastern Oregon and northwestern Nevada. This species was historically abundant and its historical range includes three permanent lakes (Hart, Crump, and Pelican), several ephemeral lakes, a network of sloughs and diversion canals, and three major tributary drainages (Honey, Deep, and Twentymile Creeks). Warner sucker abundance and distribution has declined over the past century and it was federally listed as threatened in 1985 due to habitat fragmentation and threats posed by the proliferation of piscivorous non-native game fishes (U.S. Fish and Wildlife Service 1985). The Warner Valley is a northeast-southwest trending endorheic basin which extends approximately 90 km (Figure 1). The elevation of the valley floor is approximately 1,370 m and the basin is bound by fault block escarpments, the Warner Rim on the west and Hart Mountain and Poker Jim Ridge on the east. The Warner basin was formed during the middle Tertiary and late Quaternary geologic periods as a result of volcanic and tectonic activity (Baldwin 1976). Abundant precipitation during the Pleistocene Epoch resulted in the formation of Pluvial Lake Warner (Hubbs and Miller 1948). At its maximum extent approximately 11,000 years ago, the lake reached approximately 100 m in depth and 1,300 km2 in area (Snyder et al. 1964, Weide 1975). In 2008, precipitation and snow pack were near average and Hart and Crump Lakes never filled completely. In 2007, Crump Lake water levels were very low with less than a quarter of the surface area wetted during the winter. Both lakes have been watered continuously since 1993. The Warner sucker inhabits the lakes and low gradient stream reaches of the Warner Valley. Two life history forms are present that comprise the metapopulation of Warner suckers: lake and stream morphs. The lake suckers are lacustrine adfluvial or potamodromous fish which normally spawn in the streams. However, upstream migration may be blocked by low stream flows during dry water years or by irrigation diversion dams and spawning may occur in nearshore areas of the lakes (White et al. 1990). The stream suckers inhabit and spawn in the three major tributary drainages (Honey, Deep, and Twentymile Creeks). Large lake-dwelling populations of introduced fishes in the lakes likely reduce sucker recruitment by predation on young suckers (U.S. Fish and Wildlife Service 1998). The Recovery Plan for the Threatened and Rare Native Fishes of the Warner Basin and Alkali Subbasin (U.S. Fish and Wildlife Service 1998) sets recovery criteria for delisting the species. These criteria require that (1) a self-sustaining metapopulation is distributed throughout the Twentymile, Honey, and Deep Creek (below the falls) drainages, and in Pelican, Crump, and Hart Lakes, (2) passage is restored within and among the Twentymile, Honey, and Deep Creek (below the falls) drainages so that the individual populations of Warner suckers can function as a metapopulation, and (3) no threats exist that would likely threaten the survival of the species over a significant portion of its range. In 2008, we conducted investigations in Hart and Crump Lakes to quantify the abundance and distribution of Warner suckers, to search for evidence of recent recruitment, and to estimate sucker abundance relative to nonnative fish abundance. In addition we investigated growth and movement patterns. We used Passive Integrated Transponder (PIT) tagged suckers to determine growth rates and movements, tracked radio-tagged suckers to document seasonal spawning migrations, fished a screw trap in Twelvemile Creek to monitor downstream movements, and operated a trap at the Dyke diversion dam on Twentymile Creek to monitor upstream movements. Close

• 5343. [Article] Ana Reservoir Fish Management Plan 1981.pdf

  Abstract -- Ana Reservoir is a 62-acre impoundment located approximately 5 miles north of Summer Lake and 2 miles northeast of the community of Summer Lake in Lake County. It is owned by the Summer Lake ...

  Citation × Citation Citation Abstract Copy Title: Ana Reservoir Fish Management Plan 1981.pdf Abstract -- Ana Reservoir is a 62-acre impoundment located approximately 5 miles north of Summer Lake and 2 miles northeast of the community of Summer Lake in Lake County. It is owned by the Summer Lake Irrigation District and was created in 1922 by construction of an earthen dam just downstream from a group of springs that formed Ana River. Various trout management programs have been tried at Ana Reservoir, but maintenance of an acceptable fishery has required periodic chemical treatment to reduce competition from tui chubs. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to introduce a new fish species (striped X white bass hybrid) into the reservoir. This is a good game fish, which will utilize chubs as forage. Title: Ana Reservoir Fish Management Plan 1981.pdf Abstract -- Ana Reservoir is a 62-acre impoundment located approximately 5 miles north of Summer Lake and 2 miles northeast of the community of Summer Lake in Lake County. It is owned by the Summer Lake Irrigation District and was created in 1922 by construction of an earthen dam just downstream from a group of springs that formed Ana River. Various trout management programs have been tried at Ana Reservoir, but maintenance of an acceptable fishery has required periodic chemical treatment to reduce competition from tui chubs. In July 1981, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to introduce a new fish species (striped X white bass hybrid) into the reservoir. This is a good game fish, which will utilize chubs as forage. Close

• 5344. [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

• 5345. [Article] Fish Management Plan Howard Prairie Reservoir 1986

  Abstract -- Howard Prairie Reservoir is a Bureau of Reclamation impoundment, which lies on Grizzly Creek in the western headwaters of the Klamath River drainage approximately 20 miles northeast of Ashland. ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Howard Prairie Reservoir 1986 Abstract -- Howard Prairie Reservoir is a Bureau of Reclamation impoundment, which lies on Grizzly Creek in the western headwaters of the Klamath River drainage approximately 20 miles northeast of Ashland. It was built in 1959 as part of the Talent Irrigation District which diverts water from the Klamath Basin to Bear Creek, a tributary of the Rogue River, in Jackson County. Recreation development includes five campgrounds, four boat ramps, a resort with store and marina and minimal lodging. The campgrounds are operated by Jackson County Parks Department. Howard Prairie is one of the most popular and productive fisheries in the state. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Howard Prairie Reservoir for hatchery trout and wild brown bullheads. Title: Fish Management Plan Howard Prairie Reservoir 1986 Abstract -- Howard Prairie Reservoir is a Bureau of Reclamation impoundment, which lies on Grizzly Creek in the western headwaters of the Klamath River drainage approximately 20 miles northeast of Ashland. It was built in 1959 as part of the Talent Irrigation District which diverts water from the Klamath Basin to Bear Creek, a tributary of the Rogue River, in Jackson County. Recreation development includes five campgrounds, four boat ramps, a resort with store and marina and minimal lodging. The campgrounds are operated by Jackson County Parks Department. Howard Prairie is one of the most popular and productive fisheries in the state. In November 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Howard Prairie Reservoir for hatchery trout and wild brown bullheads. Close

• 5346. [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

• 5347. [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

• 5348. [Article] Fish Management Plan Prineville Reservoir 1986

  Abstract -- Prineville Reservoir is a Bureau of Reclamation (BOR) on-stream multi-purpose reservoir on the Crooked River in Crook County, approximately 17 miles south of Prineville. The project was authorized ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Prineville Reservoir 1986 Abstract -- Prineville Reservoir is a Bureau of Reclamation (BOR) on-stream multi-purpose reservoir on the Crooked River in Crook County, approximately 17 miles south of Prineville. The project was authorized by Congress in 1956 with functions including irrigation, flood control and industrial water. Recreation and downstream fish and wildlife benefits were not included as project functions. Water impounding began December 12, 1960 and the reservoir became functional during the winter of 1960-61. No upstream fish passage was provided. Various agencies are involved in the reservoir operation. Ochoco Irrigation District, under BOR guidelines, operates the water control structure, thus controlling reservoir pool level as well as stream flow below the reservoir. Prineville Reservoir State Park is managed and maintained by State Parks. Crook County maintains two boat ramps on the reservoir. The Department of Fish and Wildlife manages the fish resources of the reservoir and has entered into an agreement with BOR and Crook County to manage an 18 square mile area adjacent to the upper one-third of the reservoir for waterfowl, big game and other wildlife. Prineville Reservoir is heavily used by recreationists. The 1983 BOR Recreation and Wildlife Summary indicated that the reservoir was used by 285,031 anglers, hunters, boaters, swimmers and campers. In October 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Prineville Reservoir for hatchery trout and wild bass and brown bullheads. Title: Fish Management Plan Prineville Reservoir 1986 Abstract -- Prineville Reservoir is a Bureau of Reclamation (BOR) on-stream multi-purpose reservoir on the Crooked River in Crook County, approximately 17 miles south of Prineville. The project was authorized by Congress in 1956 with functions including irrigation, flood control and industrial water. Recreation and downstream fish and wildlife benefits were not included as project functions. Water impounding began December 12, 1960 and the reservoir became functional during the winter of 1960-61. No upstream fish passage was provided. Various agencies are involved in the reservoir operation. Ochoco Irrigation District, under BOR guidelines, operates the water control structure, thus controlling reservoir pool level as well as stream flow below the reservoir. Prineville Reservoir State Park is managed and maintained by State Parks. Crook County maintains two boat ramps on the reservoir. The Department of Fish and Wildlife manages the fish resources of the reservoir and has entered into an agreement with BOR and Crook County to manage an 18 square mile area adjacent to the upper one-third of the reservoir for waterfowl, big game and other wildlife. Prineville Reservoir is heavily used by recreationists. The 1983 BOR Recreation and Wildlife Summary indicated that the reservoir was used by 285,031 anglers, hunters, boaters, swimmers and campers. In October 1986, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Prineville Reservoir for hatchery trout and wild bass and brown bullheads. Close

• 5349. [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

• 5350. [Article] Fish Management Plan Wallowa Lake 1980

  Abstract -- Wallowa Lake is a 1,600-acre glacial lake, 4,400 ft in elevation, located 2 mi south of Joseph. It has a maximum depth of 283 ft and is 4 mi long and 1 mi wide. The Wallowa River flows into ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Wallowa Lake 1980 Abstract -- Wallowa Lake is a 1,600-acre glacial lake, 4,400 ft in elevation, located 2 mi south of Joseph. It has a maximum depth of 283 ft and is 4 mi long and 1 mi wide. The Wallowa River flows into and out of the lake. Road access to the lake is via a paved highway. Cabins and resorts are present and a large state park exists on the south end of the lake. The lake receives heavy recreation use (swimming, fishing, boating) during the summer. The Wallowa River was a prime spawning area for Columbia River sockeye salmon about the turn of the century. By 1915, however, sightings of adult sockeye in the Wallowa River system were rare due to construction of Wallowa Lake Dam, exploitation of the species, and fish losses through unscreened irrigation diversions. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Wallowa Lake for wild and hatchery fish. Title: Fish Management Plan Wallowa Lake 1980 Abstract -- Wallowa Lake is a 1,600-acre glacial lake, 4,400 ft in elevation, located 2 mi south of Joseph. It has a maximum depth of 283 ft and is 4 mi long and 1 mi wide. The Wallowa River flows into and out of the lake. Road access to the lake is via a paved highway. Cabins and resorts are present and a large state park exists on the south end of the lake. The lake receives heavy recreation use (swimming, fishing, boating) during the summer. The Wallowa River was a prime spawning area for Columbia River sockeye salmon about the turn of the century. By 1915, however, sightings of adult sockeye in the Wallowa River system were rare due to construction of Wallowa Lake Dam, exploitation of the species, and fish losses through unscreened irrigation diversions. In September 1980, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to continue to manage Wallowa Lake for wild and hatchery fish. Close