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• 61. [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

• 62. [Article] Tenmile Lake Basin Partnership - OWEB Final Report: Grant 217-2051

  Abstract -- Pacific Lamprey are native to the Tenmile Watershed and culturally important to the local Native American Tribes. Likewise, Salmon and Steelhead have both an economic and cultural significance ...

  Citation × Citation Citation Abstract Copy Title: Tenmile Lake Basin Partnership - OWEB Final Report: Grant 217-2051 Abstract -- Pacific Lamprey are native to the Tenmile Watershed and culturally important to the local Native American Tribes. Likewise, Salmon and Steelhead have both an economic and cultural significance to the local citizens and Tribes. Pacific Lamprey were historically harvested by the people of the Confederated Tribes of the Coos, Lower Umpqua and Siuslaw Indians (CTCLUSI), but it was unknown if Pacific Lamprey were still present in the Tenmile Watershed. A fish trap was built on Eel Lake by the Oregon Department of Fish and Wildlife (ODFW) in 1989 for the purpose of fish capture and rearing. The trap is effective in capturing Salmon and Steelhead but may act as a barrier to the passage of Pacific Lamprey. This monitoring effort was designed to assess the presence/absence of Pacific Lamprey in the Tenmile Watershed, identify migration timing, potential lamprey passage barriers and rearing/spawning habitats, and collect and organize data from Eel Lake Trap on native Coho, Cutthroat, and native/hatchery Steelhead returns and trends. Lamprey larvae (ammocoete) monitoring was conducted in the summer of 2017 using electro-shockers. Shocking occurred on 3 tributaries of Tenmile Lakes (Big Creek, Johnson Creek, and Shutter Creek), and 3 creeks within the Eel Lake basin (Eel Creek, Clear Creek, and Winters Arm Creek). Two species of lamprey were identified, Western Brook (Lampetra richardsoni) and Pacific (Entosphenus tridentatus). Western Brook were found in all sampled Tenmile Lakes Basin streams, but only in the streams above Eel Lake Trap in the Eel Lake Basin. No Western Brook were identified in Eel Creek below the Trap. Pacific Lamprey were found in Johnson Creek and Big Creek in the Tenmile Lakes Basin, and in Eel Creek in the Eel Lake Basin. No Pacific Lamprey were identified above the Eel Lake Trap, suggesting that it may act as a complete passage barrier to that species. In addition, over 200 adult Pacific Lamprey were salvaged from an ODOT culvert enhancement project on Eel Creek near Hwy 101. Pacific Lamprey larvae were identified upstream of this project, but it is likely that it was a partial barrier. Two other ODOT culverts were identified as potential partial lamprey barriers on Eel Cr. Spawning areas for Pacific and Western Brook Lamprey are similar to spawning areas for salmon. Upper reaches of all the Tenmile Lake tributaries have appropriate spawning gravel. Lower stream areas are often high in sediment which is conducive to rearing lamprey larvae. This was confirmed in Johnson creek with high numbers of Pacific Lamprey larvae found at the mouth as it enters South Tenmile Lake. Farther upstream in the Johnson Creek system, larvae were abundant, but much smaller with many being too small to identify (<65mm). Western Brook larvae were found, but no Pacific Lamprey larvae were identified, perhaps amongst those unidentified specimens. Western Brook ammocoetes were also found at the lower site on Johnson Creek, and in Big Creek and Shutter Creek. Pacific Lamprey migration into the watershed is difficult to determine due to the elusive nature of the species and their life cycle trait of migrating in from the ocean in the spring of one year, then holding over until the next spring before spawning. When specimens are captured, it is difficult to determine whether it is a fresh migrant or last year’s holdover. Even if it can be determined which year it is from, it is still difficult to know how long it has been in the system before it was captured. In Phase 2 of this project, we will capture Pacific Lamprey either in traps near the mouth of Eel Cr, or at the lower culverts. This should give us a better sense of migration timing. Native Coho salmon counts at Eel Lake Trap were down significantly from the recorded high at the Trap of 441 in 2012, with only 66 native Coho returning in 2018 (the winter of 2017-2018). The previous 2 years were also low with 2016 and 2017 showing returns of only 53 and 118 respectively. The Coho numbers for most of the Oregon Coast also showed low returns. Hatchery Winter Steelhead counts were 502 for 2018. This compares to a record high of 828 in 2007, 595 in 2016, and 226 in 2017. Returning native Steelhead only numbered 10 for the 2018 season. The average return for Native Steelhead is 24. In 2018, 60 Steelhead were spawned including 2 native males, but no native females. 252 hatchery Steelhead were recycled into Saunders Lake, and 148 into Butterfield Lake. ODFW allocated 25,000 smolts for the Tenmile Watershed, which were acclimated and then released in April 2018. Title: Tenmile Lake Basin Partnership - OWEB Final Report: Grant 217-2051 Abstract -- Pacific Lamprey are native to the Tenmile Watershed and culturally important to the local Native American Tribes. Likewise, Salmon and Steelhead have both an economic and cultural significance to the local citizens and Tribes. Pacific Lamprey were historically harvested by the people of the Confederated Tribes of the Coos, Lower Umpqua and Siuslaw Indians (CTCLUSI), but it was unknown if Pacific Lamprey were still present in the Tenmile Watershed. A fish trap was built on Eel Lake by the Oregon Department of Fish and Wildlife (ODFW) in 1989 for the purpose of fish capture and rearing. The trap is effective in capturing Salmon and Steelhead but may act as a barrier to the passage of Pacific Lamprey. This monitoring effort was designed to assess the presence/absence of Pacific Lamprey in the Tenmile Watershed, identify migration timing, potential lamprey passage barriers and rearing/spawning habitats, and collect and organize data from Eel Lake Trap on native Coho, Cutthroat, and native/hatchery Steelhead returns and trends. Lamprey larvae (ammocoete) monitoring was conducted in the summer of 2017 using electro-shockers. Shocking occurred on 3 tributaries of Tenmile Lakes (Big Creek, Johnson Creek, and Shutter Creek), and 3 creeks within the Eel Lake basin (Eel Creek, Clear Creek, and Winters Arm Creek). Two species of lamprey were identified, Western Brook (Lampetra richardsoni) and Pacific (Entosphenus tridentatus). Western Brook were found in all sampled Tenmile Lakes Basin streams, but only in the streams above Eel Lake Trap in the Eel Lake Basin. No Western Brook were identified in Eel Creek below the Trap. Pacific Lamprey were found in Johnson Creek and Big Creek in the Tenmile Lakes Basin, and in Eel Creek in the Eel Lake Basin. No Pacific Lamprey were identified above the Eel Lake Trap, suggesting that it may act as a complete passage barrier to that species. In addition, over 200 adult Pacific Lamprey were salvaged from an ODOT culvert enhancement project on Eel Creek near Hwy 101. Pacific Lamprey larvae were identified upstream of this project, but it is likely that it was a partial barrier. Two other ODOT culverts were identified as potential partial lamprey barriers on Eel Cr. Spawning areas for Pacific and Western Brook Lamprey are similar to spawning areas for salmon. Upper reaches of all the Tenmile Lake tributaries have appropriate spawning gravel. Lower stream areas are often high in sediment which is conducive to rearing lamprey larvae. This was confirmed in Johnson creek with high numbers of Pacific Lamprey larvae found at the mouth as it enters South Tenmile Lake. Farther upstream in the Johnson Creek system, larvae were abundant, but much smaller with many being too small to identify (<65mm). Western Brook larvae were found, but no Pacific Lamprey larvae were identified, perhaps amongst those unidentified specimens. Western Brook ammocoetes were also found at the lower site on Johnson Creek, and in Big Creek and Shutter Creek. Pacific Lamprey migration into the watershed is difficult to determine due to the elusive nature of the species and their life cycle trait of migrating in from the ocean in the spring of one year, then holding over until the next spring before spawning. When specimens are captured, it is difficult to determine whether it is a fresh migrant or last year’s holdover. Even if it can be determined which year it is from, it is still difficult to know how long it has been in the system before it was captured. In Phase 2 of this project, we will capture Pacific Lamprey either in traps near the mouth of Eel Cr, or at the lower culverts. This should give us a better sense of migration timing. Native Coho salmon counts at Eel Lake Trap were down significantly from the recorded high at the Trap of 441 in 2012, with only 66 native Coho returning in 2018 (the winter of 2017-2018). The previous 2 years were also low with 2016 and 2017 showing returns of only 53 and 118 respectively. The Coho numbers for most of the Oregon Coast also showed low returns. Hatchery Winter Steelhead counts were 502 for 2018. This compares to a record high of 828 in 2007, 595 in 2016, and 226 in 2017. Returning native Steelhead only numbered 10 for the 2018 season. The average return for Native Steelhead is 24. In 2018, 60 Steelhead were spawned including 2 native males, but no native females. 252 hatchery Steelhead were recycled into Saunders Lake, and 148 into Butterfield Lake. ODFW allocated 25,000 smolts for the Tenmile Watershed, which were acclimated and then released in April 2018. Close

• 63. [Article] Aquatic Habitat in Oregon Coastal Streams: Winter, 1999-2001

  Abstract -- We compared summer and winter aquatic habitat conditions to determine patterns of seasonal habitat dynamics for coho salmon (Oncorhynchus kisutch). Winter sites corresponded to summer sites, ...

  Citation × Citation Citation Abstract Copy Title: Aquatic Habitat in Oregon Coastal Streams: Winter, 1999-2001 Abstract -- We compared summer and winter aquatic habitat conditions to determine patterns of seasonal habitat dynamics for coho salmon (Oncorhynchus kisutch). Winter sites corresponded to summer sites, facilitating a direct comparison between seasons on a site specific and regional scale. The data sets included 128 sites selected from the Oregon Plan habitat sites (OPHS) surveyed in the summers of 1999 and 2000 and surveyed again in the winters of 2000 and 2001. We found significant differences among geomorphic, hydrologic, and physical habitat variables measured along identical reaches in streams between winter and summer. Increases in water volume corresponded with increased deep pool density, secondary channel habitats, and wood density. These differences highlight the importance of high winter flows in terms of their contribution towards essential habitat for coho survival and reproduction. Differences among habitat variables from consecutive winters were minimal, indicating that any differences in habitat variables may be a result of variation in annual precipitation. Moreover, minimal differences in habitat variables were observed between Basin and OPHS surveys, also leading to the suggestion that OPHS surveys, conducted during the summer may provide important baseline information on habitat variables within and among watersheds. Habitat quality, as measured by benchmarks, was shown to be independent of land ownership but not independent of monitoring area. This investigation allowed us to quantify seasonal changes in summer-to-winter habitat dynamics in coastal Oregon streams. Future research could involve the addition of juvenile salmon surveys with habitat surveys to determine any significant associations between fish density and habitat quality. Furthermore, habitat variables measured during the summer might be used to determine winter habitat conditions (i.e. and thus quality), after accounting for variation in annual precipitation. Attribute means and estimates of variation, measured at identical sites in summer and winter over the long-term, may be beneficial when linking summer to winter habitat variables and ultimately to fish density estimates, thereby increasing sample size and predictability. Title: Aquatic Habitat in Oregon Coastal Streams: Winter, 1999-2001 Abstract -- We compared summer and winter aquatic habitat conditions to determine patterns of seasonal habitat dynamics for coho salmon (Oncorhynchus kisutch). Winter sites corresponded to summer sites, facilitating a direct comparison between seasons on a site specific and regional scale. The data sets included 128 sites selected from the Oregon Plan habitat sites (OPHS) surveyed in the summers of 1999 and 2000 and surveyed again in the winters of 2000 and 2001. We found significant differences among geomorphic, hydrologic, and physical habitat variables measured along identical reaches in streams between winter and summer. Increases in water volume corresponded with increased deep pool density, secondary channel habitats, and wood density. These differences highlight the importance of high winter flows in terms of their contribution towards essential habitat for coho survival and reproduction. Differences among habitat variables from consecutive winters were minimal, indicating that any differences in habitat variables may be a result of variation in annual precipitation. Moreover, minimal differences in habitat variables were observed between Basin and OPHS surveys, also leading to the suggestion that OPHS surveys, conducted during the summer may provide important baseline information on habitat variables within and among watersheds. Habitat quality, as measured by benchmarks, was shown to be independent of land ownership but not independent of monitoring area. This investigation allowed us to quantify seasonal changes in summer-to-winter habitat dynamics in coastal Oregon streams. Future research could involve the addition of juvenile salmon surveys with habitat surveys to determine any significant associations between fish density and habitat quality. Furthermore, habitat variables measured during the summer might be used to determine winter habitat conditions (i.e. and thus quality), after accounting for variation in annual precipitation. Attribute means and estimates of variation, measured at identical sites in summer and winter over the long-term, may be beneficial when linking summer to winter habitat variables and ultimately to fish density estimates, thereby increasing sample size and predictability. Close

• 64. [Article] Salmon, Steelhead and Bull Trout (SSBT) Pre-cursor Layer for Western Oregon

  Abstract -- This dataset represents both a derivation and synthesis of seven Oregon Fish Habitat Distribution datasets (winter steelhead, summer steelhead, coho salmon, spring Chinook, fall Chinook, chum ...

  Citation × Citation Citation Abstract Copy Title: Salmon, Steelhead and Bull Trout (SSBT) Pre-cursor Layer for Western Oregon Abstract -- This dataset represents both a derivation and synthesis of seven Oregon Fish Habitat Distribution datasets (winter steelhead, summer steelhead, coho salmon, spring Chinook, fall Chinook, chum salmon and Bull Trout) into a single SSBT dataset to support forestry related water protection rules. Stream reaches were filtered to include only the currently accessible habitat for the aforementioned species within the four Oregon Dept. of Forestry georegions in western Oregon: Western Cascade, Interior, Coast Range and South Coast. Basis categories were generalized into the following categories: observation-based or opinion-based. Observation based records include those records with a basis of: "Documented Observation of Fish" or observations of fish made during a protocol based survey, "Undocumented Observation of Fish" or observations of fish made during a non-protocol based survey, "Documented Observation of Habitat" or observation of habitat during a protocol based survey, and "Downstream of Documented Observation of Fish". Opinion based records include only those records which have a "Concurrence of Professional Opinion" amongst multiple fisheries biologists. The Oregon Fish Habitat Distribution Data Standard includes descriptions of these basis categories as well as the rules required for implementing updates. Data were synthesized into this single GIS dataset by selecting the "highest" record basis present across all 7 datasets. If an observation based record occurred within any one of the seven datasets, it was retained. If no observation based records were present across all seven species, the record was identified as opinion based. These data include all ODF stream size classes and also all ownerships and will be processed further by the Oregon Dept. of Forestry to identify where SSBT stream reaches occur on small and medium streams and on private lands in Western Oregon. Original source data are referenced to the National Hydrography Dataset (NHD). In some rare cases, records for different species describing the same stream reach may be represented by different stream geometry due to mapping that referenced different versions of the NHD. Title: Salmon, Steelhead and Bull Trout (SSBT) Pre-cursor Layer for Western Oregon Abstract -- This dataset represents both a derivation and synthesis of seven Oregon Fish Habitat Distribution datasets (winter steelhead, summer steelhead, coho salmon, spring Chinook, fall Chinook, chum salmon and Bull Trout) into a single SSBT dataset to support forestry related water protection rules. Stream reaches were filtered to include only the currently accessible habitat for the aforementioned species within the four Oregon Dept. of Forestry georegions in western Oregon: Western Cascade, Interior, Coast Range and South Coast. Basis categories were generalized into the following categories: observation-based or opinion-based. Observation based records include those records with a basis of: "Documented Observation of Fish" or observations of fish made during a protocol based survey, "Undocumented Observation of Fish" or observations of fish made during a non-protocol based survey, "Documented Observation of Habitat" or observation of habitat during a protocol based survey, and "Downstream of Documented Observation of Fish". Opinion based records include only those records which have a "Concurrence of Professional Opinion" amongst multiple fisheries biologists. The Oregon Fish Habitat Distribution Data Standard includes descriptions of these basis categories as well as the rules required for implementing updates. Data were synthesized into this single GIS dataset by selecting the "highest" record basis present across all 7 datasets. If an observation based record occurred within any one of the seven datasets, it was retained. If no observation based records were present across all seven species, the record was identified as opinion based. These data include all ODF stream size classes and also all ownerships and will be processed further by the Oregon Dept. of Forestry to identify where SSBT stream reaches occur on small and medium streams and on private lands in Western Oregon. Original source data are referenced to the National Hydrography Dataset (NHD). In some rare cases, records for different species describing the same stream reach may be represented by different stream geometry due to mapping that referenced different versions of the NHD. Close

• 65. [Article] Status of Winter Rearing Habitat in Four Coho Population Units_ODFW AQI Winter Report Final 2008

  Abstract -- We described the status of habitat in four Oregon coastal coho salmon (Oncorhynchus kisutch) population units (Nehalem, Siuslaw, Coquille, South Umpqua) during winter 2007, estimated the potential ...

  Citation × Citation Citation Abstract Copy Title: Status of Winter Rearing Habitat in Four Coho Population Units_ODFW AQI Winter Report Final 2008 Abstract -- We described the status of habitat in four Oregon coastal coho salmon (Oncorhynchus kisutch) population units (Nehalem, Siuslaw, Coquille, South Umpqua) during winter 2007, estimated the potential winter rearing capacity of streams within those population units, and described the differences observed in stream habitat between winter and summer with emphasis on slow water and secondary channel habitats. Sample sites were randomly selected and spatially balanced within the distribution of coho salmon (juvenile and adult) in Oregon coastal watersheds south of the Columbia River. Twenty five sites were targeted within each of the four population units. Each survey was approximately 1000 m in length and adhered to protocols in Moore et al (2007). The Habitat Limiting Factors Model (HLFM) was used to estimate habitat capacity and quality for rearing juvenile coho. The HLFM predicted that the Nehalem and Siuslaw basins could support the highest density of juvenile coho, and the South Umpqua the least. Seasonal changes in habitat were similar to that reported in a previous study. Winter surveys facilitated the assessment of habitat status and estimating capacity because the surveys were conducted at the time when habitat is most limiting to survival of juvenile coho. Winter surveys were particularly valuable in capturing secondary channel and slow water habitat units such as beaver ponds and alcoves. We also performed a sensitivity analysis to determine the number of survey sites necessary to represent each population unit within the desired confidence range of 30% recommended in the Coho Conservation Plan. Twenty five target sites were not adequate to describe the winter parr capacity within a 95% confidence interval of +30% in each population unit. Confidence intervals of estimates of parr per km ranged from 34 to 60% and mean parr per m2 ranged from 20 to 45%. Title: Status of Winter Rearing Habitat in Four Coho Population Units_ODFW AQI Winter Report Final 2008 Abstract -- We described the status of habitat in four Oregon coastal coho salmon (Oncorhynchus kisutch) population units (Nehalem, Siuslaw, Coquille, South Umpqua) during winter 2007, estimated the potential winter rearing capacity of streams within those population units, and described the differences observed in stream habitat between winter and summer with emphasis on slow water and secondary channel habitats. Sample sites were randomly selected and spatially balanced within the distribution of coho salmon (juvenile and adult) in Oregon coastal watersheds south of the Columbia River. Twenty five sites were targeted within each of the four population units. Each survey was approximately 1000 m in length and adhered to protocols in Moore et al (2007). The Habitat Limiting Factors Model (HLFM) was used to estimate habitat capacity and quality for rearing juvenile coho. The HLFM predicted that the Nehalem and Siuslaw basins could support the highest density of juvenile coho, and the South Umpqua the least. Seasonal changes in habitat were similar to that reported in a previous study. Winter surveys facilitated the assessment of habitat status and estimating capacity because the surveys were conducted at the time when habitat is most limiting to survival of juvenile coho. Winter surveys were particularly valuable in capturing secondary channel and slow water habitat units such as beaver ponds and alcoves. We also performed a sensitivity analysis to determine the number of survey sites necessary to represent each population unit within the desired confidence range of 30% recommended in the Coho Conservation Plan. Twenty five target sites were not adequate to describe the winter parr capacity within a 95% confidence interval of +30% in each population unit. Confidence intervals of estimates of parr per km ranged from 34 to 60% and mean parr per m2 ranged from 20 to 45%. Close

• 66. [Article] OASIS - Calibration of Estimates of Coho Spawner Abundance in Smith River Basin, 2001

  Abstract -- Estimates of coho spawner abundance derived from spawning surveys are a fundamental component of the Oregon Department of Fish and Wildlife’s (ODFW) Oregon Plan Monitoring (Jacobs et al. 2001). ...

  Citation × Citation Citation Abstract Copy Title: OASIS - Calibration of Estimates of Coho Spawner Abundance in Smith River Basin, 2001 Abstract -- Estimates of coho spawner abundance derived from spawning surveys are a fundamental component of the Oregon Department of Fish and Wildlife’s (ODFW) Oregon Plan Monitoring (Jacobs et al. 2001). The basis of these estimates are visual counts of adult spawners in randomly selected stream reaches. To date, survey-derived estimates have not been validated against known spawner abundances. Beginning in 1999, we initiated a study at Smith River (Umpqua Basin) to calibrate survey-based spawner estimates. Smith River provides an ideal location for this type of study because it is typical of many other coastal streams that support coho salmon, contains large quantities of habitat and spawners, and provides the ability to efficiently trap and tag adequate portions of the coho run. Title: OASIS - Calibration of Estimates of Coho Spawner Abundance in Smith River Basin, 2001 Abstract -- Estimates of coho spawner abundance derived from spawning surveys are a fundamental component of the Oregon Department of Fish and Wildlife’s (ODFW) Oregon Plan Monitoring (Jacobs et al. 2001). The basis of these estimates are visual counts of adult spawners in randomly selected stream reaches. To date, survey-derived estimates have not been validated against known spawner abundances. Beginning in 1999, we initiated a study at Smith River (Umpqua Basin) to calibrate survey-based spawner estimates. Smith River provides an ideal location for this type of study because it is typical of many other coastal streams that support coho salmon, contains large quantities of habitat and spawners, and provides the ability to efficiently trap and tag adequate portions of the coho run. Close

• 67. [Article] Pedee Creek Watershed Assessment, Project #201-168

  Abstract -- In August and September of 2001, ODFW staff were contracted to conduct stream habitat and aquatic inventory surveys on Pedee Creek from its confluence with the Luckiamute River upstream to ...

  Citation × Citation Citation Abstract Copy Title: Pedee Creek Watershed Assessment, Project #201-168 Abstract -- In August and September of 2001, ODFW staff were contracted to conduct stream habitat and aquatic inventory surveys on Pedee Creek from its confluence with the Luckiamute River upstream to include both north and south forks up to natural barriers. This report includes those reports. Title: Pedee Creek Watershed Assessment, Project #201-168 Abstract -- In August and September of 2001, ODFW staff were contracted to conduct stream habitat and aquatic inventory surveys on Pedee Creek from its confluence with the Luckiamute River upstream to include both north and south forks up to natural barriers. This report includes those reports. Close

• 68. [Article] Remote Sensing Survey of the Walla Walla River Basin, Thermal Infrared and Color Videography

  Abstract -- In August 2000, Oregon DEQ contracted with Watershed Sciences, LLC to use Forward Looking Infrared (FLIR) techniques to map and assess stream temperatures in portions of the Walla Walla River ...

  Citation × Citation Citation Abstract Copy Title: Remote Sensing Survey of the Walla Walla River Basin, Thermal Infrared and Color Videography Abstract -- In August 2000, Oregon DEQ contracted with Watershed Sciences, LLC to use Forward Looking Infrared (FLIR) techniques to map and assess stream temperatures in portions of the Walla Walla River basin. This report contains images and analysis of that effort. Title: Remote Sensing Survey of the Walla Walla River Basin, Thermal Infrared and Color Videography Abstract -- In August 2000, Oregon DEQ contracted with Watershed Sciences, LLC to use Forward Looking Infrared (FLIR) techniques to map and assess stream temperatures in portions of the Walla Walla River basin. This report contains images and analysis of that effort. Close

• 69. [Article] Forest Roads, Drainage, and Sediment Delivery in the Kilchis River Watershed

  Abstract -- This survey evaluated over 100 miles of forest roads in the Kilchis River watershed. 25% of this mileage clearly delivered sediment to streams, an additional 14% was given a "possible" delivery ...

  Citation × Citation Citation Abstract Copy Title: Forest Roads, Drainage, and Sediment Delivery in the Kilchis River Watershed Abstract -- This survey evaluated over 100 miles of forest roads in the Kilchis River watershed. 25% of this mileage clearly delivered sediment to streams, an additional 14% was given a "possible" delivery rating. Information on landslides and wash-outs after the 1995-96 storms is given. Recommendations are offered. Title: Forest Roads, Drainage, and Sediment Delivery in the Kilchis River Watershed Abstract -- This survey evaluated over 100 miles of forest roads in the Kilchis River watershed. 25% of this mileage clearly delivered sediment to streams, an additional 14% was given a "possible" delivery rating. Information on landslides and wash-outs after the 1995-96 storms is given. Recommendations are offered. Close

• 70. [Article] Large wood restoration Cedar Creek Siletz River Basin 2009

  Abstract -- A large wood restoration project was completed along approximately seven miles of Cedar Cr (tributary to the lower Siletz River). 460 pieces of wood were placed in the stream. Wood was placed ...

  Citation × Citation Citation Abstract Copy Title: Large wood restoration Cedar Creek Siletz River Basin 2009 Abstract -- A large wood restoration project was completed along approximately seven miles of Cedar Cr (tributary to the lower Siletz River). 460 pieces of wood were placed in the stream. Wood was placed at 26 sites (with multiple jams at some sites) with an average of 66 pieces/mile or 18 pieces/site. Pre-restoration habitat surveys were completed during summer 2008 and consisted of standard ODFW AHI inventories. Post-restoration habitat surveys were completed summer 2011. A post-restoration evaluation report was completed February 2012 and is located in OWEB's files. Title: Large wood restoration Cedar Creek Siletz River Basin 2009 Abstract -- A large wood restoration project was completed along approximately seven miles of Cedar Cr (tributary to the lower Siletz River). 460 pieces of wood were placed in the stream. Wood was placed at 26 sites (with multiple jams at some sites) with an average of 66 pieces/mile or 18 pieces/site. Pre-restoration habitat surveys were completed during summer 2008 and consisted of standard ODFW AHI inventories. Post-restoration habitat surveys were completed summer 2011. A post-restoration evaluation report was completed February 2012 and is located in OWEB's files. Close

• 71. [Article] Necanicum Habitat Assessment Project: Juvenile Coho Winter Habitat Priorities for Large Wood Placement and Fish Passage Barriers

  Abstract -- ODFW Aquatic Inventory protocol was used to assess habitat in selected streams (57 km total) in the Necanicum River basin. Snorkel surveys were conducted to assess juvenile salmonid distribution ...

  Citation × Citation Citation Abstract Copy Title: Necanicum Habitat Assessment Project: Juvenile Coho Winter Habitat Priorities for Large Wood Placement and Fish Passage Barriers Abstract -- ODFW Aquatic Inventory protocol was used to assess habitat in selected streams (57 km total) in the Necanicum River basin. Snorkel surveys were conducted to assess juvenile salmonid distribution and abundance in these streams. Non-natural fish passage barriers were located. Locations where large wood placements would enhance fish habitat were identified. Title: Necanicum Habitat Assessment Project: Juvenile Coho Winter Habitat Priorities for Large Wood Placement and Fish Passage Barriers Abstract -- ODFW Aquatic Inventory protocol was used to assess habitat in selected streams (57 km total) in the Necanicum River basin. Snorkel surveys were conducted to assess juvenile salmonid distribution and abundance in these streams. Non-natural fish passage barriers were located. Locations where large wood placements would enhance fish habitat were identified. Close

• 72. [Article] Annual trends in abundance and frequency for juvenile coho in the Oregon Coast Coho ESU

  Abstract -- PDF Document with reference to North, Mid and Mid-South and Umpqua coastal streams. Snorkel years from 1998 to 2006 and shows information of the annual trend in abundance and frequency metrics ...

  Citation × Citation Citation Abstract Copy Title: Annual trends in abundance and frequency for juvenile coho in the Oregon Coast Coho ESU Abstract -- PDF Document with reference to North, Mid and Mid-South and Umpqua coastal streams. Snorkel years from 1998 to 2006 and shows information of the annual trend in abundance and frequency metrics for juvenile coho salmon in the Oregon Coast Coho ESU, based on snorkel surveys in 1st-3rd order stream reaches. Title: Annual trends in abundance and frequency for juvenile coho in the Oregon Coast Coho ESU Abstract -- PDF Document with reference to North, Mid and Mid-South and Umpqua coastal streams. Snorkel years from 1998 to 2006 and shows information of the annual trend in abundance and frequency metrics for juvenile coho salmon in the Oregon Coast Coho ESU, based on snorkel surveys in 1st-3rd order stream reaches. Close

• 73. [Article] Annual trends in abundance and frequency metrics for juvenile steelhead in the Oregon Coast Steelhead DPS

  Abstract -- PDF Document with reference to North, Mid and Mid-South and Umpqua coastal streams. Snorkel years from 2002 to 2006 and shows information from the annual trend in abundance and frequency metrics ...

  Citation × Citation Citation Abstract Copy Title: Annual trends in abundance and frequency metrics for juvenile steelhead in the Oregon Coast Steelhead DPS Abstract -- PDF Document with reference to North, Mid and Mid-South and Umpqua coastal streams. Snorkel years from 2002 to 2006 and shows information from the annual trend in abundance and frequency metrics for juvenile steelhead in the Oregon Coast Steelhead DPS, based on snorkel surveys in 1st-3rd order stream reaches. Title: Annual trends in abundance and frequency metrics for juvenile steelhead in the Oregon Coast Steelhead DPS Abstract -- PDF Document with reference to North, Mid and Mid-South and Umpqua coastal streams. Snorkel years from 2002 to 2006 and shows information from the annual trend in abundance and frequency metrics for juvenile steelhead in the Oregon Coast Steelhead DPS, based on snorkel surveys in 1st-3rd order stream reaches. Close

• 74. [Article] Status of Winter Rearing Habitat In Four Coho Population Units, 2007 Report Number: OPSW-ODFW-2008-7

  Abstract -- In a recent assessment of coastal coho salmon by the Oregon Department of Fish and Wildlife (2005), the authors concluded that productivity in 21 of 21 coastal coho populations was limited ...

  Citation × Citation Citation Abstract Copy Title: Status of Winter Rearing Habitat In Four Coho Population Units, 2007 Report Number: OPSW-ODFW-2008-7 Abstract -- In a recent assessment of coastal coho salmon by the Oregon Department of Fish and Wildlife (2005), the authors concluded that productivity in 21 of 21 coastal coho populations was limited primarily (13) or secondarily (8) by the complexity of stream habitat used by juvenile coho during their first winter of freshwater residence. The Oregon Coast Coho Conservation Plan (Nicholas 2006), written in response to the assessment, concluded that recovery of coho populations will depend largely on improvement of freshwater habitat. The Conservation Plan (Nicholas 2006) presents population specific goals for the amount and quality of winter habitat needed to achieve desired status of coho populations. Monitoring objectives in the Plan are 1) describe the status of freshwater habitat in each population unit with a focus on features important to overwinter survival of juvenile coho, 2) estimate carrying capacity in each population unit with + 30% confidence, and 3) measure progress towards meeting the habitat goals of the Conservation Plan. This report describes the first two monitoring objectives for winter habitat in four population units: the Coquille, South Umpqua, Siuslaw, and Nehalem. Winter habitat surveys are conducted to describe the freshwater habitat conditions that may limit the survival of juvenile coho during the season at which the conditions are limiting. The Habitat Limiting Factors Model (Nickelson et al. 1992a, Nickelson et al. 1992b, Nickelson 1998) estimates the capacity of streams to support juvenile salmon based on quantitative descriptions of summer and winter habitat. The model assigns value to the size, type and complexity of habitat units, giving highest value to slow water pools such as alcoves and beaver ponds, and pools with large wood. Because winter habitat limits the capacity of most coastal streams to support juvenile coho (Rodgers et al. 2005), accurate estimates of winter habitat are essential to life cycle modeling and to meet objectives of the Conservation Plan. Rodgers et al. (2005) estimated potential carrying capacity of stream habitat within each coastal coho population unit, but statistical confidence was limited by the source and manipulation of the data. Although the data set was extensive, most of the reaches were not randomly selected, and a regression model was used to extrapolate conditions from summer to winter (Rodgers et al. 2005). Summer surveys provide applicable information, but at low flow conditions. Summer weather and stream flows are predictable and conducive to field work; study sites are more accessible, work days are longer and warmer, lower water levels enable walking in the channel more easily, and water clarity is high. However, while more difficult logistically, winter surveys provide estimates during high flow conditions thought to be most important to juvenile coho survival. The winter surveys are conducted during “base flow” when off-channel habitats and secondary channels are inundated, but not over floodplain. The winter 2007 survey sites were selected using the Generalized Random Tessellation Stratified (GRTS) sample design (Stevens 2002) from a pool of sites previously surveyed during summer. This provided an opportunity to describe status within coho population units and refine the summer to winter conversion regression model. More sites are visited during summer than winter, and the sample pool will expand if we can use summer surveys to predict winter conditions. A thorough description of seasonal habitat variation will determine the appropriateness of using summer habitat data to assess habitat conditions during the winter. The objectives of this report are to provide the status of winter habitat surveyed in 2007 in four Oregon coastal coho salmon (Oncorhynchus kisutch) population units (Nehalem, Siuslaw, Coquille, South Umpqua), estimate the potential winter capacity of streams within those population units, and describe the differences observed in stream habitat between winter and summer with emphasis on slow water and secondary channel habitats. We also performed a sensitivity analysis to determine the number of survey sites necessary to represent each population unit within the desired confidence recommended in the Conservation Plan (Nicholas 2006). Title: Status of Winter Rearing Habitat In Four Coho Population Units, 2007 Report Number: OPSW-ODFW-2008-7 Abstract -- In a recent assessment of coastal coho salmon by the Oregon Department of Fish and Wildlife (2005), the authors concluded that productivity in 21 of 21 coastal coho populations was limited primarily (13) or secondarily (8) by the complexity of stream habitat used by juvenile coho during their first winter of freshwater residence. The Oregon Coast Coho Conservation Plan (Nicholas 2006), written in response to the assessment, concluded that recovery of coho populations will depend largely on improvement of freshwater habitat. The Conservation Plan (Nicholas 2006) presents population specific goals for the amount and quality of winter habitat needed to achieve desired status of coho populations. Monitoring objectives in the Plan are 1) describe the status of freshwater habitat in each population unit with a focus on features important to overwinter survival of juvenile coho, 2) estimate carrying capacity in each population unit with + 30% confidence, and 3) measure progress towards meeting the habitat goals of the Conservation Plan. This report describes the first two monitoring objectives for winter habitat in four population units: the Coquille, South Umpqua, Siuslaw, and Nehalem. Winter habitat surveys are conducted to describe the freshwater habitat conditions that may limit the survival of juvenile coho during the season at which the conditions are limiting. The Habitat Limiting Factors Model (Nickelson et al. 1992a, Nickelson et al. 1992b, Nickelson 1998) estimates the capacity of streams to support juvenile salmon based on quantitative descriptions of summer and winter habitat. The model assigns value to the size, type and complexity of habitat units, giving highest value to slow water pools such as alcoves and beaver ponds, and pools with large wood. Because winter habitat limits the capacity of most coastal streams to support juvenile coho (Rodgers et al. 2005), accurate estimates of winter habitat are essential to life cycle modeling and to meet objectives of the Conservation Plan. Rodgers et al. (2005) estimated potential carrying capacity of stream habitat within each coastal coho population unit, but statistical confidence was limited by the source and manipulation of the data. Although the data set was extensive, most of the reaches were not randomly selected, and a regression model was used to extrapolate conditions from summer to winter (Rodgers et al. 2005). Summer surveys provide applicable information, but at low flow conditions. Summer weather and stream flows are predictable and conducive to field work; study sites are more accessible, work days are longer and warmer, lower water levels enable walking in the channel more easily, and water clarity is high. However, while more difficult logistically, winter surveys provide estimates during high flow conditions thought to be most important to juvenile coho survival. The winter surveys are conducted during “base flow” when off-channel habitats and secondary channels are inundated, but not over floodplain. The winter 2007 survey sites were selected using the Generalized Random Tessellation Stratified (GRTS) sample design (Stevens 2002) from a pool of sites previously surveyed during summer. This provided an opportunity to describe status within coho population units and refine the summer to winter conversion regression model. More sites are visited during summer than winter, and the sample pool will expand if we can use summer surveys to predict winter conditions. A thorough description of seasonal habitat variation will determine the appropriateness of using summer habitat data to assess habitat conditions during the winter. The objectives of this report are to provide the status of winter habitat surveyed in 2007 in four Oregon coastal coho salmon (Oncorhynchus kisutch) population units (Nehalem, Siuslaw, Coquille, South Umpqua), estimate the potential winter capacity of streams within those population units, and describe the differences observed in stream habitat between winter and summer with emphasis on slow water and secondary channel habitats. We also performed a sensitivity analysis to determine the number of survey sites necessary to represent each population unit within the desired confidence recommended in the Conservation Plan (Nicholas 2006). Close

• 75. [Article] MidCoast A - Rapid Bio-assessment 1998 Midcoast

  Abstract -- Snorkel surveys were conducted in five midcoast watersheds that included the Yachats, Alsea, Yaquina, Siletz, and Salmon Rivers. These surveys were commissioned by the Midcoast Watershed Council, ...

  Citation × Citation Citation Abstract Copy Title: MidCoast A - Rapid Bio-assessment 1998 Midcoast Abstract -- Snorkel surveys were conducted in five midcoast watersheds that included the Yachats, Alsea, Yaquina, Siletz, and Salmon Rivers. These surveys were commissioned by the Midcoast Watershed Council, using funds granted by GWEB. The intent of these surveys was to begin to develop a base line for monitoring trends in the distribution and abundance of juvenile Coho, Steelhead and Cutthroat in Midcoast watersheds. Adult Coho escapement for many of these basins has hovered near all time low levels for multiple brood cycles. These surveys intend to identify the core areas within these basins that, at low spawner densities, provide suitable spawning habitats. They also intend to identify areas important for juvenile salmonid rearing such that restoration activities can focus on recovering reaches that adult salmonids are returning to. Title: MidCoast A - Rapid Bio-assessment 1998 Midcoast Abstract -- Snorkel surveys were conducted in five midcoast watersheds that included the Yachats, Alsea, Yaquina, Siletz, and Salmon Rivers. These surveys were commissioned by the Midcoast Watershed Council, using funds granted by GWEB. The intent of these surveys was to begin to develop a base line for monitoring trends in the distribution and abundance of juvenile Coho, Steelhead and Cutthroat in Midcoast watersheds. Adult Coho escapement for many of these basins has hovered near all time low levels for multiple brood cycles. These surveys intend to identify the core areas within these basins that, at low spawner densities, provide suitable spawning habitats. They also intend to identify areas important for juvenile salmonid rearing such that restoration activities can focus on recovering reaches that adult salmonids are returning to. Close

• 76. [Article] 2004-2005 Hatchery Fish Carcass Placement in Oregon Streams

  Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement is commonly believed to replace some of the nutrients historically available to ...

  Citation × Citation Citation Abstract Copy Title: 2004-2005 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement is commonly believed to replace some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects, consumed by salmonids as food. Title: 2004-2005 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement is commonly believed to replace some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects, consumed by salmonids as food. Close

• 77. [Article] 2005-2006 Hatchery Fish Carcass Placement in Oregon Streams

  Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement replaces some of the nutrients historically available to fish from decaying carcasses ...

  Citation × Citation Citation Abstract Copy Title: 2005-2006 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement replaces some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects, consumed by salmonids as food. Information gathered from this analysis will help determine whether to continue, modify, or discontinue the carcass placement program. The monitoring and evaluation component of this project will investigate food web responses, along with other important factors Title: 2005-2006 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement replaces some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects, consumed by salmonids as food. Information gathered from this analysis will help determine whether to continue, modify, or discontinue the carcass placement program. The monitoring and evaluation component of this project will investigate food web responses, along with other important factors Close

• 78. [Article] 2006-2007 Hatchery Fish Carcass Placement in Oregon Streams

  Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement replaces some of the nutrients historically available to fish from decaying carcasses ...

  Citation × Citation Citation Abstract Copy Title: 2006-2007 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement replaces some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects, consumed by salmonids as food. Title: 2006-2007 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The purpose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement replaces some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects, consumed by salmonids as food. Close

• 79. [Article] 2008-2009 Hatchery Fish Carcass Placement in Oregon Streams

  Abstract -- The pupose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement is commonly believed to replace some of the nutrients historically available to ...

  Citation × Citation Citation Abstract Copy Title: 2008-2009 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The pupose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement is commonly believed to replace some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects consumed by salmonds as food. Title: 2008-2009 Hatchery Fish Carcass Placement in Oregon Streams Abstract -- The pupose of this document is to track the placement of salmon carcasses in streams. Fish carcass placement is commonly believed to replace some of the nutrients historically available to fish from decaying carcasses no longer present in large numbers. Nutrients provided by these carcasses are cycled through the food chain and become available to salmonids primarily through insects consumed by salmonds as food. Close

• 80. [Article] Summary Report: Bald Mountain Creek-Bear Creek (Elk River) Juvenile Snorkel Survey, August 2011

  Abstract -- A rapid bio-assessment juvenile snorkel survey of Bald Mtn occurred in Augutst 2011 on approximately 0.67 miles of stream, and pools were snorkeled on Bear Creek to determine presence/absence. ...

  Citation × Citation Citation Abstract Copy Title: Summary Report: Bald Mountain Creek-Bear Creek (Elk River) Juvenile Snorkel Survey, August 2011 Abstract -- A rapid bio-assessment juvenile snorkel survey of Bald Mtn occurred in Augutst 2011 on approximately 0.67 miles of stream, and pools were snorkeled on Bear Creek to determine presence/absence. Title: Summary Report: Bald Mountain Creek-Bear Creek (Elk River) Juvenile Snorkel Survey, August 2011 Abstract -- A rapid bio-assessment juvenile snorkel survey of Bald Mtn occurred in Augutst 2011 on approximately 0.67 miles of stream, and pools were snorkeled on Bear Creek to determine presence/absence. Close