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• 401. [Article] Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2014

  Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August ...

  Citation × Citation Citation Abstract Copy Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2014 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2014 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Close

• 402. [Article] Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2015

  Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August ...

  Citation × Citation Citation Abstract Copy Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2015 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2015 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Close

• 403. [Article] Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2016

  Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August ...

  Citation × Citation Citation Abstract Copy Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2016 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2016 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Close

• 404. [Article] Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2017

  Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August ...

  Citation × Citation Citation Abstract Copy Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2017 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Title: Steelhead Escapement Monitoring in the Upper Grande Ronde River and Joseph Creek Basins - Annual Technical Report 2017 Abstract -- Summer steelhead in the Grande Ronde River basin fall within the Snake River Distinct Population Segment (DPS) and are listed as threatened under the Endangered Species Act (62 FR 43937; August 18, 1997). The Upper Grande Ronde River (UGRR) and Joseph Creek basins support two of the four populations in the Grande Ronde Major Population Group (MPG). These populations are segregated based on topographic, genetic, and behavioral evidence of interactions. Historically, the Grande Ronde River was one of the more significant anadromous fish producing rivers in the Columbia River basin. Despite recovery efforts, these populations remain depressed relative to historic levels. The goal of this project is to annually evaluate summer steelhead population abundance for the UGRR, and recently Joseph Creek, by conducting surveys of redds and spawning activity. These surveys provide those data needed to estimate adult steelhead escapement, improve our understanding of habitat utilization, and contribute to productivity and survival estimates for these populations. ODFW- Eastern Oregon Fish Research (EOFR) BPA Contract 60987 Close

• 405. [Article] Prevalence of Bacterial Kidney Disease in Natural vs. Hatchery-Reared Adult Chinook Salmon Spawned in a Hatchery and in Nature Information Reports number 2009-06

  Abstract -- Bacterial kidney disease (BKD) is a major health problem of cultured Pacific salmon, Oncorhynchus sp. It has been particularly problematic in captive broodstock programs, where the interests ...

  Citation × Citation Citation Abstract Copy Title: Prevalence of Bacterial Kidney Disease in Natural vs. Hatchery-Reared Adult Chinook Salmon Spawned in a Hatchery and in Nature Information Reports number 2009-06 Abstract -- Bacterial kidney disease (BKD) is a major health problem of cultured Pacific salmon, Oncorhynchus sp. It has been particularly problematic in captive broodstock programs, where the interests of gene conservation and fish health can conflict when spawning females with signs of BKD. Not rearing those fish reduces the genetic diversity of an already depleted population, while rearing those fish may increase the prevalence of BKD in the natural population. We used data collected during spawning at Lookingglass Fish hatchery and on spawning ground surveys to examine the prevalence of BKD, based on enzyme-linked immunosorbent assay optical density (ELISA OD) values, to monitor the prevalence of BKD in natural and hatchery-reared Chinook salmon O. tshawytscha from Grande Ronde and Imnaha basin streams in northeast Oregon. Mean ELISA OD levels differed among all sampled streams from 2004-2008 and was lowest in the Imnaha River salmon (0.0839) and highest in the Minam River (0.1750). Salmon spawned at LFH had a lower mean ELISA OD level (0.086) than those collected from carcasses on spawning ground surveys (0.118). Natural salmon mean ELISA OD level was 0.1058 and 97% were from salmon with ELISA OD level <0.2 and in hatchery salmon, 96% had an ELISA OD level <0.2 and mean ELISA OD level was 0.1138, with no difference between the groups. Over 17 years in the Imnaha River we see no difference in mean ELISA OD levels between natural and hatchery Chinook salmon. There was no difference in mean ELISA OD levels between adult Chinook salmon from wilderness (0.1663) vs. supplemented (0.1184) streams. However, when comparing mean ELISA OD for only natural Chinook salmon carcasses recovered in these streams, we found that mean ELISA OD level was higher in the wilderness streams (0.1676) than in the supplemented streams. Returning adults from the Captive Broodstock F1 generation had a higher mean ELISA OD level (0.1349) than those of Conventional Hatchery Program offspring (0.0957). Annual mean ELISA OD level decreased over time in the Lostine River stock but did not change for any of the other stocks. The data for BKD in Chinook salmon from northeast Oregon streams and hatcheries show that this disease is not prevalent and we found no evidence that the release of hatchery salmon is causing an increase in BKD prevalence in the monitored streams. However, we will continue to monitor this disease. Title: Prevalence of Bacterial Kidney Disease in Natural vs. Hatchery-Reared Adult Chinook Salmon Spawned in a Hatchery and in Nature Information Reports number 2009-06 Abstract -- Bacterial kidney disease (BKD) is a major health problem of cultured Pacific salmon, Oncorhynchus sp. It has been particularly problematic in captive broodstock programs, where the interests of gene conservation and fish health can conflict when spawning females with signs of BKD. Not rearing those fish reduces the genetic diversity of an already depleted population, while rearing those fish may increase the prevalence of BKD in the natural population. We used data collected during spawning at Lookingglass Fish hatchery and on spawning ground surveys to examine the prevalence of BKD, based on enzyme-linked immunosorbent assay optical density (ELISA OD) values, to monitor the prevalence of BKD in natural and hatchery-reared Chinook salmon O. tshawytscha from Grande Ronde and Imnaha basin streams in northeast Oregon. Mean ELISA OD levels differed among all sampled streams from 2004-2008 and was lowest in the Imnaha River salmon (0.0839) and highest in the Minam River (0.1750). Salmon spawned at LFH had a lower mean ELISA OD level (0.086) than those collected from carcasses on spawning ground surveys (0.118). Natural salmon mean ELISA OD level was 0.1058 and 97% were from salmon with ELISA OD level <0.2 and in hatchery salmon, 96% had an ELISA OD level <0.2 and mean ELISA OD level was 0.1138, with no difference between the groups. Over 17 years in the Imnaha River we see no difference in mean ELISA OD levels between natural and hatchery Chinook salmon. There was no difference in mean ELISA OD levels between adult Chinook salmon from wilderness (0.1663) vs. supplemented (0.1184) streams. However, when comparing mean ELISA OD for only natural Chinook salmon carcasses recovered in these streams, we found that mean ELISA OD level was higher in the wilderness streams (0.1676) than in the supplemented streams. Returning adults from the Captive Broodstock F1 generation had a higher mean ELISA OD level (0.1349) than those of Conventional Hatchery Program offspring (0.0957). Annual mean ELISA OD level decreased over time in the Lostine River stock but did not change for any of the other stocks. The data for BKD in Chinook salmon from northeast Oregon streams and hatcheries show that this disease is not prevalent and we found no evidence that the release of hatchery salmon is causing an increase in BKD prevalence in the monitored streams. However, we will continue to monitor this disease. Close

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

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

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

• 407. [Article] Grande Ronde River Fish Management Plan 1993- Draft

  Abstract -- The Fish Management Policy of the Oregon Department of Fish and Wildlife directs that fish management plans will be prepared for each basin or management unit. The Fish Management Plan for ...

  Citation × Citation Citation Abstract Copy Title: Grande Ronde River Fish Management Plan 1993- Draft Abstract -- The Fish Management Policy of the Oregon Department of Fish and Wildlife directs that fish management plans will be prepared for each basin or management unit. The Fish Management Plan for the Grande Ronde River Basin (hereafter referred to as the Grande Ronde River Basin Plan or the Plan) is just one part of the overall planning effort of the ODFW. Individual species plans contain statewide policies and guidelines, and provide general direction for writing basin plans. The Grande Ronde River Basin Plan incorporates appropriate portions of the above plans, and will be the primary document used to guide fishery management of the public resource in this basin. The Grande Ronde River Basin Plan was developed through an advisory process that included ODFW staff, tribal agencies, a committee of citizen advisors [Public Advisory Committee (PAC)] representing a diversity of interests in the basin, and a Technical Advisory Committee (TAC) with members representing several agencies including land management and tribal representation. Title: Grande Ronde River Fish Management Plan 1993- Draft Abstract -- The Fish Management Policy of the Oregon Department of Fish and Wildlife directs that fish management plans will be prepared for each basin or management unit. The Fish Management Plan for the Grande Ronde River Basin (hereafter referred to as the Grande Ronde River Basin Plan or the Plan) is just one part of the overall planning effort of the ODFW. Individual species plans contain statewide policies and guidelines, and provide general direction for writing basin plans. The Grande Ronde River Basin Plan incorporates appropriate portions of the above plans, and will be the primary document used to guide fishery management of the public resource in this basin. The Grande Ronde River Basin Plan was developed through an advisory process that included ODFW staff, tribal agencies, a committee of citizen advisors [Public Advisory Committee (PAC)] representing a diversity of interests in the basin, and a Technical Advisory Committee (TAC) with members representing several agencies including land management and tribal representation. Close

• 408. [Article] Fishery Management and Evaluation Plan: Snake River Steelhead ESU and Snake, Grande Ronde, Imnaha Rivers Warmwater and Sturgeon Recreational Fisheries

  Abstract -- The fisheries management area is the Snake River and its tributaries in Oregon below Hells Canyon Dam. The Snake River white sturgeon fishery occurs between the Oregon-Washington border at ...

  Citation × Citation Citation Abstract Copy Title: Fishery Management and Evaluation Plan: Snake River Steelhead ESU and Snake, Grande Ronde, Imnaha Rivers Warmwater and Sturgeon Recreational Fisheries Abstract -- The fisheries management area is the Snake River and its tributaries in Oregon below Hells Canyon Dam. The Snake River white sturgeon fishery occurs between the Oregon-Washington border at RM 176 and Hells Canyon Dam at RM 248. The warm water fishery occurs in the above described reach of the Snake River, as well as, within the lower 10 miles of the Imnaha River, the lower 20 miles of Joseph Creek in Oregon, the lower 5 miles of the Wenaha River, the lower 20 miles of Catherine Creek and between the Oregon-Washington border at RM 38 and RM 173 above the town of La Grande on the Grande Ronde River. Title: Fishery Management and Evaluation Plan: Snake River Steelhead ESU and Snake, Grande Ronde, Imnaha Rivers Warmwater and Sturgeon Recreational Fisheries Abstract -- The fisheries management area is the Snake River and its tributaries in Oregon below Hells Canyon Dam. The Snake River white sturgeon fishery occurs between the Oregon-Washington border at RM 176 and Hells Canyon Dam at RM 248. The warm water fishery occurs in the above described reach of the Snake River, as well as, within the lower 10 miles of the Imnaha River, the lower 20 miles of Joseph Creek in Oregon, the lower 5 miles of the Wenaha River, the lower 20 miles of Catherine Creek and between the Oregon-Washington border at RM 38 and RM 173 above the town of La Grande on the Grande Ronde River. Close

• 409. [Article] Grande Ronde River Basin Master Plan for Angler Access and Associated Recreational Uses 1966

  Abstract -- The Grande Ronde Basin is quite a large basin that drains most of the northeastern corner of our State. The system has five tributary rivers. Two are accessible by trail only, the Wenaha near ...

  Citation × Citation Citation Abstract Copy Title: Grande Ronde River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Grande Ronde Basin is quite a large basin that drains most of the northeastern corner of our State. The system has five tributary rivers. Two are accessible by trail only, the Wenaha near the Washington state line and the Minam that flows northward between La Grande and Enterprise. Catherine Creek drains the upper eastern part of the Grande Ronde Valley; the Wallowa and Lostine Rivers flow out of the Wallowa Valley. The Grande Ronde system supports a good fishery for salmon and steelhead. These fish migrate up the Columbia and Snake Rivers and travel approximately 650 river miles before they reach the spawning areas in the upper reaches of the basin. The Lower Grande Ronde enjoys a fall steelhead fishery; the upper tributaries have spring salmon and in some instances spring steelhead. In the peak of the season angling pressure is heavy and success is good. This report details a plan that we hope can be followed to solve the access problems of the Grande Ronde Basin. Title: Grande Ronde River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Grande Ronde Basin is quite a large basin that drains most of the northeastern corner of our State. The system has five tributary rivers. Two are accessible by trail only, the Wenaha near the Washington state line and the Minam that flows northward between La Grande and Enterprise. Catherine Creek drains the upper eastern part of the Grande Ronde Valley; the Wallowa and Lostine Rivers flow out of the Wallowa Valley. The Grande Ronde system supports a good fishery for salmon and steelhead. These fish migrate up the Columbia and Snake Rivers and travel approximately 650 river miles before they reach the spawning areas in the upper reaches of the basin. The Lower Grande Ronde enjoys a fall steelhead fishery; the upper tributaries have spring salmon and in some instances spring steelhead. In the peak of the season angling pressure is heavy and success is good. This report details a plan that we hope can be followed to solve the access problems of the Grande Ronde Basin. Close

• 410. [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