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• 111. [Article] Coho Life History in Tide Gated Lowland Streams 2014-2016_OWEB 214-2031

  Abstract -- Coos Watershed Association’s (CoosWA) coho life history in tide gated lowland coastal streams, a life cycle monitoring (LCM) project, adapts and advances a long-term monitoring study initiated ...

  Citation × Citation Citation Abstract Copy Title: Coho Life History in Tide Gated Lowland Streams 2014-2016_OWEB 214-2031 Abstract -- Coos Watershed Association’s (CoosWA) coho life history in tide gated lowland coastal streams, a life cycle monitoring (LCM) project, adapts and advances a long-term monitoring study initiated in 2004 to explicitly examine coho salmon abundance, survival, life histories and habitat use in tide gated coastal lowland streams. Evidence from this project and across the range of coho strongly indicates that connectivity in diverse and dynamic tidal habitats provides alternative rearing pathways critical for the sustainability and recovery of Oregon Coastal (OC) coho stocks. Specifically, this project reestablished innovative PIT tag mark recapture techniques to monitor coho movements and migrations. Temporal and spatial components of over-winter rearing strategies, in relation to habitat use and project effectiveness monitoring, is the focus in these paired study streams. Notably, monitoring was shifted to Willanch Creek from Larson Creek. Juvenile coho diet analyses revealed seasonal and diurnal variation in foraging strategies between early migrating sub-yearlings and yearling smolts across their range in estuarine habitats. These results reveal the fundamental mechanisms that promote increased juvenile coho growth and survival in the estuarine ecotone. In conjunction with prior and current data, results highlight the critical importance of these diverse habitats for recovering viable OC coho populations. Title: Coho Life History in Tide Gated Lowland Streams 2014-2016_OWEB 214-2031 Abstract -- Coos Watershed Association’s (CoosWA) coho life history in tide gated lowland coastal streams, a life cycle monitoring (LCM) project, adapts and advances a long-term monitoring study initiated in 2004 to explicitly examine coho salmon abundance, survival, life histories and habitat use in tide gated coastal lowland streams. Evidence from this project and across the range of coho strongly indicates that connectivity in diverse and dynamic tidal habitats provides alternative rearing pathways critical for the sustainability and recovery of Oregon Coastal (OC) coho stocks. Specifically, this project reestablished innovative PIT tag mark recapture techniques to monitor coho movements and migrations. Temporal and spatial components of over-winter rearing strategies, in relation to habitat use and project effectiveness monitoring, is the focus in these paired study streams. Notably, monitoring was shifted to Willanch Creek from Larson Creek. Juvenile coho diet analyses revealed seasonal and diurnal variation in foraging strategies between early migrating sub-yearlings and yearling smolts across their range in estuarine habitats. These results reveal the fundamental mechanisms that promote increased juvenile coho growth and survival in the estuarine ecotone. In conjunction with prior and current data, results highlight the critical importance of these diverse habitats for recovering viable OC coho populations. Close

• 112. [Article] Clear and Foster Creek Fish Passage Assessment and Prioritization Project

  Abstract -- The project was initiated by Clackamas River Basin Council (CRBC) to address the fact that the vast majority of information on barriers pertains only to public roads. Although public agencies ...

  Citation × Citation Citation Abstract Copy Title: Clear and Foster Creek Fish Passage Assessment and Prioritization Project Abstract -- The project was initiated by Clackamas River Basin Council (CRBC) to address the fact that the vast majority of information on barriers pertains only to public roads. Although public agencies have shown leadership and started to replace culverts (the County and ODFW and US Forest) they were unable to determine whether there were barriers just up stream on private roads or dams. In order to spend public dollars efficiently and to get a sense of biological and cost related priorities, a comprehensive approach, a watershed approach, that included the cooperation of willing private landowners and better information on natural barriers was needed to understand the real priorities for replacement. For this reason, the goal of the basin stakeholders working in partnership with the CRBC was to create a truly comprehensive assessment and prioritization of public and private barriers. Title: Clear and Foster Creek Fish Passage Assessment and Prioritization Project Abstract -- The project was initiated by Clackamas River Basin Council (CRBC) to address the fact that the vast majority of information on barriers pertains only to public roads. Although public agencies have shown leadership and started to replace culverts (the County and ODFW and US Forest) they were unable to determine whether there were barriers just up stream on private roads or dams. In order to spend public dollars efficiently and to get a sense of biological and cost related priorities, a comprehensive approach, a watershed approach, that included the cooperation of willing private landowners and better information on natural barriers was needed to understand the real priorities for replacement. For this reason, the goal of the basin stakeholders working in partnership with the CRBC was to create a truly comprehensive assessment and prioritization of public and private barriers. Close

• 113. [Article] Coho Life History in Tide Gated Lowland Coastal Streams

  Abstract -- Coos Watershed Association’s (CoosWA) coho Life Cycle Monitoring Project (LCM) is a continuation of a long-term monitoring study initiated in 2004 to examine coho salmon abundance, survival, ...

  Citation × Citation Citation Abstract Copy Title: Coho Life History in Tide Gated Lowland Coastal Streams Abstract -- Coos Watershed Association’s (CoosWA) coho Life Cycle Monitoring Project (LCM) is a continuation of a long-term monitoring study initiated in 2004 to examine coho salmon abundance, survival, life histories and habitat use in two tide gated coastal lowland streams, Larson and Palouse Creeks. Productive utilization of these remarkable habitat types is critical for the recovery and sustainability of Oregon Coastal coho. Specifically, this project developed, and adapted innovative mark recapture techniques using PIT tags to monitor the coho life cycle, further evaluated over-winter rearing strategies in relation to temporal and spatial habitat use and continued project effectiveness monitoring in these study streams. In addition, coho diet analyses were designed and conducted and will be analyzed in relation to seasonal and diurnal variations in environmental factors in order to assess proximal causes of habitat productivity. Title: Coho Life History in Tide Gated Lowland Coastal Streams Abstract -- Coos Watershed Association’s (CoosWA) coho Life Cycle Monitoring Project (LCM) is a continuation of a long-term monitoring study initiated in 2004 to examine coho salmon abundance, survival, life histories and habitat use in two tide gated coastal lowland streams, Larson and Palouse Creeks. Productive utilization of these remarkable habitat types is critical for the recovery and sustainability of Oregon Coastal coho. Specifically, this project developed, and adapted innovative mark recapture techniques using PIT tags to monitor the coho life cycle, further evaluated over-winter rearing strategies in relation to temporal and spatial habitat use and continued project effectiveness monitoring in these study streams. In addition, coho diet analyses were designed and conducted and will be analyzed in relation to seasonal and diurnal variations in environmental factors in order to assess proximal causes of habitat productivity. Close

• 114. [Article] Mosby Creek Limiting Factors Analysis and Restoration Plan

  Abstract -- The Mosby Creek Limiting Factors Analysis (Rapid Bio-Assessment) assessed stream conditions for native salmonids and prioritized projects of benefit to spring Chinook, cutthroat trout, rainbow ...

  Citation × Citation Citation Abstract Copy Title: Mosby Creek Limiting Factors Analysis and Restoration Plan Abstract -- The Mosby Creek Limiting Factors Analysis (Rapid Bio-Assessment) assessed stream conditions for native salmonids and prioritized projects of benefit to spring Chinook, cutthroat trout, rainbow trout, and Pacific lamprey in this high-priority, free-flowing stream in the Coast Fork Willamette Watershed. To gain access to private properties adjacent to the 75 miles of surveyed streams, the applicant conducted landowner outreach and coordinated two years of continuous temperature data collection by volunteers. The contractor conducted a modified limiting factors analysis and a snorkel survey in the Mosby Creek main stem and tributaries up to 6 percent gradient. The resulting study results include a prioritized restoration plan that has been shared with local landowners and restoration partners and used for restoration planning. Title: Mosby Creek Limiting Factors Analysis and Restoration Plan Abstract -- The Mosby Creek Limiting Factors Analysis (Rapid Bio-Assessment) assessed stream conditions for native salmonids and prioritized projects of benefit to spring Chinook, cutthroat trout, rainbow trout, and Pacific lamprey in this high-priority, free-flowing stream in the Coast Fork Willamette Watershed. To gain access to private properties adjacent to the 75 miles of surveyed streams, the applicant conducted landowner outreach and coordinated two years of continuous temperature data collection by volunteers. The contractor conducted a modified limiting factors analysis and a snorkel survey in the Mosby Creek main stem and tributaries up to 6 percent gradient. The resulting study results include a prioritized restoration plan that has been shared with local landowners and restoration partners and used for restoration planning. Close

• 115. [Article] Status and Distribution of Native Fishes in the Goose Lake Basin Information Reports number 2008-02

  Abstract -- This study describes the current distribution of the nine native fish species in the Oregon portion of the Goose Lake basin (Lake County): Goose Lake redband trout Oncorhynchus mykiss ssp., ...

  Citation × Citation Citation Abstract Copy Title: Status and Distribution of Native Fishes in the Goose Lake Basin Information Reports number 2008-02 Abstract -- This study describes the current distribution of the nine native fish species in the Oregon portion of the Goose Lake basin (Lake County): Goose Lake redband trout Oncorhynchus mykiss ssp., Goose Lake lamprey Entosphenus sp., Goose Lake tui chub Siphateles bicolor thalassinus, Goose Lake sucker Catostomus occidentalis lacusanserinus, Modoc sucker Catostomus microps, Pit-Klamath brook lamprey Entosphenus lethophagus, speckled dace Rhinichthys osculus, Pit roach Lavinia symmetricus mitrulus, and Pit sculpin Cottus pitensis. The Goose Lake basin is an endorheic, or topographically closed basin located in south central Oregon and northeastern California. The basin is within the usually closed northeastern extremity of the adjoining Sacramento River basin, astride the Oregon-California boundary. Although most of the lake lies in California, most of its valley and nearly two-thirds of the total drainage area (~722 sq. mi.) are in Oregon. The largest streams in the basin are Drews, Cottonwood, and Thomas Creeks. Annual precipitation averages about 36 cm per year (Phillips and van Denburgh 1971). Goose Lake overflowed briefly into the North Fork Pit River in 1868 and 1881, but storage and diversion of irrigation water has substantially reduced the inflow and future overflow is unlikely (USGS 1971). The lakebed was dry in the summers of 1926, 1929- 1934, and 1992. About half the basin is forestland, 20% is hay fields and pastureland, and 16% is shrub and rangeland. Currently, almost 35% of the inflow is diverted for irrigation (OWRD 1989). The Goose Lake basin is home to four endemic fish taxa: the Goose Lake redband trout, lamprey, sucker, and tui chub. Endemic fishes of the Goose Lake basin split their life histories between Goose Lake and its tributaries, as opposed to the five native but non-endemic species that primarily occupy stream habitats. Pit roach and all endemic fishes except Goose Lake tui chub are listed as a “species of concern” by the USFWS, a designation that implies there is concern about species viability, but not enough information is known to initiate a listing review for threatened or endangered status. The Modoc sucker was listed as a federally endangered species in 1985 (USFWS 1985). No formal recovery plan was required due to an existing “Action Plan for the Recovery of the Modoc Sucker” (USFWS 1984). Most of the recovery actions outlined in the action plan were either completed or are no longer relevant (Stewart Reid, Western Fishes, personal communication). However, actions 26 and 27 pertaining to range expansion remain incomplete. Action 26 suggests reclassification to threatened upon establishment of safe populations (for 3-5 years) throughout the Rush and Turner Creek watersheds in the Pit River basin. Action 27 suggests delisting upon establishing safe populations in two other historic streams. At the time of listing, the historic range of Modoc sucker was thought to have included only two small tributaries of the Pit River in Modoc and Lassen Counties, Ash and Turner Creeks (USFWS 1985). Therefore, a major recovery goal was to expand the species’ range with additional populations (USFWS 1984). In 2001, reexamination of historical documents and museum specimens established that Modoc suckers had also historically occupied Thomas Creek in the Goose Lake basin. Field collections in 2001, with subsequent morphological and genetic analysis, confirmed that the population was still present in Thomas Creek (Stewart Reid, Western Fishes, personal communication); however, the broader range of Modoc sucker in the Goose Lake watershed was not known. In 1995, the Goose Lake Fishes Working Group drafted a conservation plan for “prelisting” recovery of all native fish in response to severe drought and habitat degradation (GLFWG 1995). The Aquatic Inventories Project of the Oregon Department of Fish and Wildlife (ODFW) conducted habitat and fish distribution surveys (1991-1995) to obtain baseline information to help inform recovery efforts (ODFW, unpublished data). Since then, field work to monitor the distribution and abundance of Goose Lake fishes has been limited and sporadic, targeting only Goose Lake redband trout and Modoc sucker (Dambacher 2001; Reid 2007). No comprehensive follow up work has been conducted to evaluate fish response to climatic conditions, habitat restoration projects, and continued irrigation activities. ODFW recently drafted a status review of native fish of Oregon (ODFW 2005). Except for redband trout, Goose Lake fishes were not included in the status review due to a lack of new information since the previous status review in 1995 (Kostow et al. 1995). Further, the review of Goose Lake redband trout was limited by a lack of long-term data series. The first objective of this study was to document the current distribution of native fishes in Oregon’s portion of the Goose Lake basin and assess changes in distribution that may have occurred since the last surveys were conducted 12 years ago. The second objective was to provide new information about the distribution of Modoc suckers within the basin. The third objective was to determine relative abundance and age-class diversity of native fishes at randomly selected sample sites. All objectives were addressed throughout the potential riverine distribution of fish in the Oregon portion of the Goose Lake basin. Information gathered in this study is critical to effective conservation and management of each species and its habitat. In addition, this report describes the distribution and relative abundance of nonnative fishes (fathead minnow (Pimephales promelas), brown bullhead (Ameiurus nebulosus), white crappie (Pomoxis annularis), yellow perch (Perca flavescens), pumpkinseed (Lepomis gibbosus), and brook trout (Salvelinus fontinalis)) in the basin. Unlike prior efforts, this study used a statisticallybased design to select sample points with the aim of achieving a representative sample across the Oregon portion of the Goose Lake watershed. Additionally, a wide array of fish sampling gear was employed to maximize our ability to capture all fish species present across the diversity of habitat types encountered. Title: Status and Distribution of Native Fishes in the Goose Lake Basin Information Reports number 2008-02 Abstract -- This study describes the current distribution of the nine native fish species in the Oregon portion of the Goose Lake basin (Lake County): Goose Lake redband trout Oncorhynchus mykiss ssp., Goose Lake lamprey Entosphenus sp., Goose Lake tui chub Siphateles bicolor thalassinus, Goose Lake sucker Catostomus occidentalis lacusanserinus, Modoc sucker Catostomus microps, Pit-Klamath brook lamprey Entosphenus lethophagus, speckled dace Rhinichthys osculus, Pit roach Lavinia symmetricus mitrulus, and Pit sculpin Cottus pitensis. The Goose Lake basin is an endorheic, or topographically closed basin located in south central Oregon and northeastern California. The basin is within the usually closed northeastern extremity of the adjoining Sacramento River basin, astride the Oregon-California boundary. Although most of the lake lies in California, most of its valley and nearly two-thirds of the total drainage area (~722 sq. mi.) are in Oregon. The largest streams in the basin are Drews, Cottonwood, and Thomas Creeks. Annual precipitation averages about 36 cm per year (Phillips and van Denburgh 1971). Goose Lake overflowed briefly into the North Fork Pit River in 1868 and 1881, but storage and diversion of irrigation water has substantially reduced the inflow and future overflow is unlikely (USGS 1971). The lakebed was dry in the summers of 1926, 1929- 1934, and 1992. About half the basin is forestland, 20% is hay fields and pastureland, and 16% is shrub and rangeland. Currently, almost 35% of the inflow is diverted for irrigation (OWRD 1989). The Goose Lake basin is home to four endemic fish taxa: the Goose Lake redband trout, lamprey, sucker, and tui chub. Endemic fishes of the Goose Lake basin split their life histories between Goose Lake and its tributaries, as opposed to the five native but non-endemic species that primarily occupy stream habitats. Pit roach and all endemic fishes except Goose Lake tui chub are listed as a “species of concern” by the USFWS, a designation that implies there is concern about species viability, but not enough information is known to initiate a listing review for threatened or endangered status. The Modoc sucker was listed as a federally endangered species in 1985 (USFWS 1985). No formal recovery plan was required due to an existing “Action Plan for the Recovery of the Modoc Sucker” (USFWS 1984). Most of the recovery actions outlined in the action plan were either completed or are no longer relevant (Stewart Reid, Western Fishes, personal communication). However, actions 26 and 27 pertaining to range expansion remain incomplete. Action 26 suggests reclassification to threatened upon establishment of safe populations (for 3-5 years) throughout the Rush and Turner Creek watersheds in the Pit River basin. Action 27 suggests delisting upon establishing safe populations in two other historic streams. At the time of listing, the historic range of Modoc sucker was thought to have included only two small tributaries of the Pit River in Modoc and Lassen Counties, Ash and Turner Creeks (USFWS 1985). Therefore, a major recovery goal was to expand the species’ range with additional populations (USFWS 1984). In 2001, reexamination of historical documents and museum specimens established that Modoc suckers had also historically occupied Thomas Creek in the Goose Lake basin. Field collections in 2001, with subsequent morphological and genetic analysis, confirmed that the population was still present in Thomas Creek (Stewart Reid, Western Fishes, personal communication); however, the broader range of Modoc sucker in the Goose Lake watershed was not known. In 1995, the Goose Lake Fishes Working Group drafted a conservation plan for “prelisting” recovery of all native fish in response to severe drought and habitat degradation (GLFWG 1995). The Aquatic Inventories Project of the Oregon Department of Fish and Wildlife (ODFW) conducted habitat and fish distribution surveys (1991-1995) to obtain baseline information to help inform recovery efforts (ODFW, unpublished data). Since then, field work to monitor the distribution and abundance of Goose Lake fishes has been limited and sporadic, targeting only Goose Lake redband trout and Modoc sucker (Dambacher 2001; Reid 2007). No comprehensive follow up work has been conducted to evaluate fish response to climatic conditions, habitat restoration projects, and continued irrigation activities. ODFW recently drafted a status review of native fish of Oregon (ODFW 2005). Except for redband trout, Goose Lake fishes were not included in the status review due to a lack of new information since the previous status review in 1995 (Kostow et al. 1995). Further, the review of Goose Lake redband trout was limited by a lack of long-term data series. The first objective of this study was to document the current distribution of native fishes in Oregon’s portion of the Goose Lake basin and assess changes in distribution that may have occurred since the last surveys were conducted 12 years ago. The second objective was to provide new information about the distribution of Modoc suckers within the basin. The third objective was to determine relative abundance and age-class diversity of native fishes at randomly selected sample sites. All objectives were addressed throughout the potential riverine distribution of fish in the Oregon portion of the Goose Lake basin. Information gathered in this study is critical to effective conservation and management of each species and its habitat. In addition, this report describes the distribution and relative abundance of nonnative fishes (fathead minnow (Pimephales promelas), brown bullhead (Ameiurus nebulosus), white crappie (Pomoxis annularis), yellow perch (Perca flavescens), pumpkinseed (Lepomis gibbosus), and brook trout (Salvelinus fontinalis)) in the basin. Unlike prior efforts, this study used a statisticallybased design to select sample points with the aim of achieving a representative sample across the Oregon portion of the Goose Lake watershed. Additionally, a wide array of fish sampling gear was employed to maximize our ability to capture all fish species present across the diversity of habitat types encountered. Close

• 116. [Article] Coho Life History in Tide Gated Lowland Coastal Streams, 2016-2018

  Abstract -- Coos Watershed Association’s (CoosWA) coho life history in tide gated lowland coastal streams, a life cycle monitoring (LCM) project, examines the ecology of tidal rearing for coho in the Coos ...

  Citation × Citation Citation Abstract Copy Title: Coho Life History in Tide Gated Lowland Coastal Streams, 2016-2018 Abstract -- Coos Watershed Association’s (CoosWA) coho life history in tide gated lowland coastal streams, a life cycle monitoring (LCM) project, examines the ecology of tidal rearing for coho in the Coos River Basin. This project has adapted to and advanced the recent paradigm shift in juvenile coho life histories, rearing and foraging strategies, growth, survival, migrations, and sub-basin level population productivity in the tidal zone. Temporal and spatial components of coho over-winter rearing strategies, in relation to habitat use and project effectiveness monitoring, is the monitoring focus in the paired study streams of Palouse and Willanch Creeks. Project results further reveal the fundamental mechanisms that promote juvenile coho growth and survival in the estuarine ecotone. In conjunction with prior and current data, results highlight the critical importance of these diverse habitats for recovering viable and resilient Oregon Coast coho populations. Title: Coho Life History in Tide Gated Lowland Coastal Streams, 2016-2018 Abstract -- Coos Watershed Association’s (CoosWA) coho life history in tide gated lowland coastal streams, a life cycle monitoring (LCM) project, examines the ecology of tidal rearing for coho in the Coos River Basin. This project has adapted to and advanced the recent paradigm shift in juvenile coho life histories, rearing and foraging strategies, growth, survival, migrations, and sub-basin level population productivity in the tidal zone. Temporal and spatial components of coho over-winter rearing strategies, in relation to habitat use and project effectiveness monitoring, is the monitoring focus in the paired study streams of Palouse and Willanch Creeks. Project results further reveal the fundamental mechanisms that promote juvenile coho growth and survival in the estuarine ecotone. In conjunction with prior and current data, results highlight the critical importance of these diverse habitats for recovering viable and resilient Oregon Coast coho populations. Close

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

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

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

• 118. [Article] Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2012 Annual Progress Report

  Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus ...

  Citation × Citation Citation Abstract Copy Title: Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2012 Annual Progress Report Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus mykiss). We report on juvenile steelhead rearing and release activities for the 2011 brood year (BY) released in 2012. Included are collection, spawning, and adult characteristics for the 2012 returns, returns from experimental releases, supplementation in Little Sheep Creek, and success toward achieving compensation goals. The Grande Ronde and Imnaha river steelhead hatchery programs were initiated in 1976 and 1982 in response to the rapid decline in Snake River steelhead abundance. Annual adult mitigation, brood year specific smolt-to-adult return and total smolt-to-adult survival rates, and annual smolt production goals were established to compensate for the estimated annual loss of 48% of adult production. Adaptive management has resulted in current interim smolt production goals of 800,000 (Wallowa stock released into the Grande Ronde) and 215,000 (Imnaha stock) smolts; less than the original goals of 1,350,000 and 330,000 smolts. Based on original smolt production goals it was assumed that 27,552 Wallowa stock and 6,000 Imnaha stock adults would be produced annually. Furthermore, 66.7% of these fish were expected to be harvested below the compensation area, defined as the watershed above Lower Granite Dam, resulting in compensation area adult return goals of 9,184 (Wallowa stock) and 2,000 (Imnaha stock). In general, the data in this report were derived from hatchery inventories and standard databases (e.g., Pacific States Marine Fisheries Commission Regional Mark Information System (RMIS), ODFW mark recovery) or through standard measuring techniques. As such, specific protocols are usually not described. In cases where expansions of data or unique methodologies were used, protocols are described in more detail. Additional descriptions of protocols can be found in our work statements (Carmichael et al. 2009, Carmichael et al. 2010). Coded-wire tag (CWT) data collected from 2012 adult returns were used to evaluate smolt-to-adult survival rates in experimental rearing and release groups. In 2012, experimental treatments from which fish returned included unmarked releases, off-station direct-stream releases, and progeny from early returning (fall-collected) broodstock release strategies. In 2012, smolts were released at Wallowa Hatchery that were second generation progeny of early returning (fall-collected) broodstock for an experimental comparison with progeny of standard production broodstock. Methods for the fall broodstock experiment are described in Warren et al. (2011). Analysis of specific survival studies will be completed and published in separate reports once all brood years have returned and CWT data are complete for each experiment. In addition, much of the data that we discuss in this report will be used in separate and specific evaluations of ongoing supplementation programs for steelhead in the Imnaha River basin. Lower Snake River Compensation Plan (LSRCP) ODFW- Eastern Oregon Fish Research (EOFR) Title: Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2012 Annual Progress Report Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus mykiss). We report on juvenile steelhead rearing and release activities for the 2011 brood year (BY) released in 2012. Included are collection, spawning, and adult characteristics for the 2012 returns, returns from experimental releases, supplementation in Little Sheep Creek, and success toward achieving compensation goals. The Grande Ronde and Imnaha river steelhead hatchery programs were initiated in 1976 and 1982 in response to the rapid decline in Snake River steelhead abundance. Annual adult mitigation, brood year specific smolt-to-adult return and total smolt-to-adult survival rates, and annual smolt production goals were established to compensate for the estimated annual loss of 48% of adult production. Adaptive management has resulted in current interim smolt production goals of 800,000 (Wallowa stock released into the Grande Ronde) and 215,000 (Imnaha stock) smolts; less than the original goals of 1,350,000 and 330,000 smolts. Based on original smolt production goals it was assumed that 27,552 Wallowa stock and 6,000 Imnaha stock adults would be produced annually. Furthermore, 66.7% of these fish were expected to be harvested below the compensation area, defined as the watershed above Lower Granite Dam, resulting in compensation area adult return goals of 9,184 (Wallowa stock) and 2,000 (Imnaha stock). In general, the data in this report were derived from hatchery inventories and standard databases (e.g., Pacific States Marine Fisheries Commission Regional Mark Information System (RMIS), ODFW mark recovery) or through standard measuring techniques. As such, specific protocols are usually not described. In cases where expansions of data or unique methodologies were used, protocols are described in more detail. Additional descriptions of protocols can be found in our work statements (Carmichael et al. 2009, Carmichael et al. 2010). Coded-wire tag (CWT) data collected from 2012 adult returns were used to evaluate smolt-to-adult survival rates in experimental rearing and release groups. In 2012, experimental treatments from which fish returned included unmarked releases, off-station direct-stream releases, and progeny from early returning (fall-collected) broodstock release strategies. In 2012, smolts were released at Wallowa Hatchery that were second generation progeny of early returning (fall-collected) broodstock for an experimental comparison with progeny of standard production broodstock. Methods for the fall broodstock experiment are described in Warren et al. (2011). Analysis of specific survival studies will be completed and published in separate reports once all brood years have returned and CWT data are complete for each experiment. In addition, much of the data that we discuss in this report will be used in separate and specific evaluations of ongoing supplementation programs for steelhead in the Imnaha River basin. Lower Snake River Compensation Plan (LSRCP) ODFW- Eastern Oregon Fish Research (EOFR) Close

• 119. [Article] Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2013 Annual Progress Report

  Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus ...

  Citation × Citation Citation Abstract Copy Title: Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2013 Annual Progress Report Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus mykiss). We report on juvenile steelhead rearing and release activities for the 2012 brood year (BY) released in 2013. Included are collection, spawning, and adult characteristics for the 2012 returns, returns from experimental releases, supplementation in Little Sheep Creek, and success toward achieving compensation goals. The Grande Ronde and Imnaha river steelhead hatchery programs were initiated in 1976 and 1982 in response to the rapid decline in Snake River steelhead abundance. Annual adult mitigation, brood year specific smolt-to-adult return and total smolt-to-adult survival rates, and annual smolt production goals were established to compensate for the estimated annual loss of 48% of adult production. Adaptive management has resulted in current interim smolt production goals of 800,000 (Wallowa stock released into the Grande Ronde) and 215,000 (Imnaha stock) smolts; less than the original goals of 1,350,000 and 330,000 smolts. Based on original smolt production goals it was assumed that 27,552 Wallowa stock and 6,000 Imnaha stock adults would be produced annually. Furthermore, 66.7% of these fish were expected to be harvested below the compensation area, defined as the watershed above Lower Granite Dam, resulting in compensation area adult return goals of 9,184 (Wallowa stock) and 2,000 (Imnaha stock). In general, the data in this report were derived from hatchery inventories and standard databases (e.g., Pacific States Marine Fisheries Commission Regional Mark Information System (RMIS), ODFW mark recovery) or through standard measuring techniques. As such, specific protocols are usually not described. In cases where expansions of data or unique methodologies were used, protocols are described in more detail. Additional descriptions of protocols can be found in our work statements (Carmichael et al. 2012, Carmichael et al. 2013). Coded-wire tag (CWT) data collected from 2013 adult returns were used to evaluate smolt-to-adult survival rates in experimental rearing and release groups. In 2013, the only experimental treatments from which fish returned were second generation progeny from early returning (fall-collected) broodstock. In 2013, smolts were released at Wallowa Hatchery that were third generation progeny of early returning (fall-collected) broodstock for an experimental comparison with progeny of standard production broodstock. Methods for the fall broodstock experiment are described in Warren et al. (2011a). Analysis of specific survival studies will be completed and published in separate reports once all brood years have returned and CWT data are complete for each experiment. In addition, much of the data that we discuss in this report will be used in separate and specific evaluations of ongoing supplementation programs for steelhead in the Imnaha River basin. Lower Snake River Compensation Plan (LSRCP) ODFW- Eastern Oregon Fish Research (EOFR) Title: Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2013 Annual Progress Report Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus mykiss). We report on juvenile steelhead rearing and release activities for the 2012 brood year (BY) released in 2013. Included are collection, spawning, and adult characteristics for the 2012 returns, returns from experimental releases, supplementation in Little Sheep Creek, and success toward achieving compensation goals. The Grande Ronde and Imnaha river steelhead hatchery programs were initiated in 1976 and 1982 in response to the rapid decline in Snake River steelhead abundance. Annual adult mitigation, brood year specific smolt-to-adult return and total smolt-to-adult survival rates, and annual smolt production goals were established to compensate for the estimated annual loss of 48% of adult production. Adaptive management has resulted in current interim smolt production goals of 800,000 (Wallowa stock released into the Grande Ronde) and 215,000 (Imnaha stock) smolts; less than the original goals of 1,350,000 and 330,000 smolts. Based on original smolt production goals it was assumed that 27,552 Wallowa stock and 6,000 Imnaha stock adults would be produced annually. Furthermore, 66.7% of these fish were expected to be harvested below the compensation area, defined as the watershed above Lower Granite Dam, resulting in compensation area adult return goals of 9,184 (Wallowa stock) and 2,000 (Imnaha stock). In general, the data in this report were derived from hatchery inventories and standard databases (e.g., Pacific States Marine Fisheries Commission Regional Mark Information System (RMIS), ODFW mark recovery) or through standard measuring techniques. As such, specific protocols are usually not described. In cases where expansions of data or unique methodologies were used, protocols are described in more detail. Additional descriptions of protocols can be found in our work statements (Carmichael et al. 2012, Carmichael et al. 2013). Coded-wire tag (CWT) data collected from 2013 adult returns were used to evaluate smolt-to-adult survival rates in experimental rearing and release groups. In 2013, the only experimental treatments from which fish returned were second generation progeny from early returning (fall-collected) broodstock. In 2013, smolts were released at Wallowa Hatchery that were third generation progeny of early returning (fall-collected) broodstock for an experimental comparison with progeny of standard production broodstock. Methods for the fall broodstock experiment are described in Warren et al. (2011a). Analysis of specific survival studies will be completed and published in separate reports once all brood years have returned and CWT data are complete for each experiment. In addition, much of the data that we discuss in this report will be used in separate and specific evaluations of ongoing supplementation programs for steelhead in the Imnaha River basin. Lower Snake River Compensation Plan (LSRCP) ODFW- Eastern Oregon Fish Research (EOFR) Close

• 120. [Article] Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2014 Annual Progress Report

  Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus ...

  Citation × Citation Citation Abstract Copy Title: Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2014 Annual Progress Report Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus mykiss). We report on juvenile steelhead rearing and release activities for the 2013 brood year (BY) released in 2014. Included are collection, spawning, and adult characteristics for the 2014 returns, returns from experimental releases, supplementation in Little Sheep Creek, and success toward achieving compensation goals. The Grande Ronde and Imnaha river steelhead hatchery programs were initiated in 1976 and 1982 in response to the rapid decline in Snake River steelhead abundance. Annual adult mitigation, brood year specific smolt-to-adult return and total smolt-to-adult survival rates, and annual smolt production goals were established to compensate for the estimated annual loss of 48% of adult production. Adaptive management has resulted in current interim smolt production goals of 800,000 (ODFW Wallowa stock released into the Grande Ronde) and 215,000 (Imnaha stock) smolts; less than the original goals of 1,350,000 and 330,000 smolts. Based on original smolt production goals it was assumed that 27,552 Wallowa stock and 6,000 Imnaha stock adults would be produced annually. Furthermore, 66.7% of these fish were expected to be harvested below the compensation area, defined as the watershed above Lower Granite Dam, resulting in compensation area adult return goals of 9,184 Wallowa stock and 2,000 Imnaha stock. In general, the data in this report were derived from hatchery inventories and standard databases (e.g., Pacific States Marine Fisheries Commission Regional Mark Information System (RMIS), ODFW mark recovery) or through standard measuring techniques. As such, specific protocols are usually not described. In cases where expansions of data or unique methodologies were used, protocols are described in more detail. Additional descriptions of protocols can be found in our work statements (Carmichael et al. 2012, Carmichael et al. 2013). Coded-wire tag (CWT) data collected from 2014 adult returns were used to evaluate smolt-to-adult survival rates in experimental rearing and release groups. In 2014, the only experimental treatments from which fish returned were second generation progeny from early returning (fall-collected) broodstock. In 2014, smolts were released at Wallowa Hatchery that were third generation progeny of early returning (fall-collected) broodstock for an experimental comparison with progeny of standard production broodstock. Methods for the fall broodstock experiment are described in Warren et al. (2011a). Analysis of specific survival studies will be completed and published in separate reports once all brood years have returned and CWT data are complete for each experiment. In addition, much of the data that we discuss in this report will be used in separate and specific evaluations of ongoing supplementation programs for steelhead in the Imnaha River basin. Lower Snake River Compensation Plan (LSRCP) ODFW- Eastern Oregon Fish Research (EOFR) Title: Lower Snake River Compensation Plan; Oregon Summer Steelhead Evaluation Studies - 2014 Annual Progress Report Abstract -- The objectives of this report are to document fish culture practices, describe adult returns, and assess progress toward meeting LSRCP goals for Grande Ronde and Imnaha steelhead (Oncorhynchus mykiss). We report on juvenile steelhead rearing and release activities for the 2013 brood year (BY) released in 2014. Included are collection, spawning, and adult characteristics for the 2014 returns, returns from experimental releases, supplementation in Little Sheep Creek, and success toward achieving compensation goals. The Grande Ronde and Imnaha river steelhead hatchery programs were initiated in 1976 and 1982 in response to the rapid decline in Snake River steelhead abundance. Annual adult mitigation, brood year specific smolt-to-adult return and total smolt-to-adult survival rates, and annual smolt production goals were established to compensate for the estimated annual loss of 48% of adult production. Adaptive management has resulted in current interim smolt production goals of 800,000 (ODFW Wallowa stock released into the Grande Ronde) and 215,000 (Imnaha stock) smolts; less than the original goals of 1,350,000 and 330,000 smolts. Based on original smolt production goals it was assumed that 27,552 Wallowa stock and 6,000 Imnaha stock adults would be produced annually. Furthermore, 66.7% of these fish were expected to be harvested below the compensation area, defined as the watershed above Lower Granite Dam, resulting in compensation area adult return goals of 9,184 Wallowa stock and 2,000 Imnaha stock. In general, the data in this report were derived from hatchery inventories and standard databases (e.g., Pacific States Marine Fisheries Commission Regional Mark Information System (RMIS), ODFW mark recovery) or through standard measuring techniques. As such, specific protocols are usually not described. In cases where expansions of data or unique methodologies were used, protocols are described in more detail. Additional descriptions of protocols can be found in our work statements (Carmichael et al. 2012, Carmichael et al. 2013). Coded-wire tag (CWT) data collected from 2014 adult returns were used to evaluate smolt-to-adult survival rates in experimental rearing and release groups. In 2014, the only experimental treatments from which fish returned were second generation progeny from early returning (fall-collected) broodstock. In 2014, smolts were released at Wallowa Hatchery that were third generation progeny of early returning (fall-collected) broodstock for an experimental comparison with progeny of standard production broodstock. Methods for the fall broodstock experiment are described in Warren et al. (2011a). Analysis of specific survival studies will be completed and published in separate reports once all brood years have returned and CWT data are complete for each experiment. In addition, much of the data that we discuss in this report will be used in separate and specific evaluations of ongoing supplementation programs for steelhead in the Imnaha River basin. Lower Snake River Compensation Plan (LSRCP) ODFW- Eastern Oregon Fish Research (EOFR) Close