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• 31. [Article] Powder River-Powder Valley Watershed Assessment

  Abstract -- The area covered by this watershed assessment is a scenic region containing a wealth of I resources. Those resources include wildlife, scenery, fisheries, clean water, mineral deposits, forests, ...

  Citation × Citation Citation Abstract Copy Title: Powder River-Powder Valley Watershed Assessment Abstract -- The area covered by this watershed assessment is a scenic region containing a wealth of I resources. Those resources include wildlife, scenery, fisheries, clean water, mineral deposits, forests, productive farmland, and people. The Powder River-Powder Valley Watershed Assessment is a compilation of existing information on three fifth field HUC's, minus 12,800acre HUC6 below Thief Valley Reservoir. The watershed encompasses approximately 300,000 acres. Title: Powder River-Powder Valley Watershed Assessment Abstract -- The area covered by this watershed assessment is a scenic region containing a wealth of I resources. Those resources include wildlife, scenery, fisheries, clean water, mineral deposits, forests, productive farmland, and people. The Powder River-Powder Valley Watershed Assessment is a compilation of existing information on three fifth field HUC's, minus 12,800acre HUC6 below Thief Valley Reservoir. The watershed encompasses approximately 300,000 acres. Close

• 32. [Article] Little Walla Walla River Assessment and Initial Action Plan (2010)

  Abstract -- The Little Walla Walla River and Spring Branch system is an anomaly when compared to most river systems. This non-linear combination of distributaries and an alluvial fan of spring fed creeks ...

  Citation × Citation Citation Abstract Copy Title: Little Walla Walla River Assessment and Initial Action Plan (2010) Abstract -- The Little Walla Walla River and Spring Branch system is an anomaly when compared to most river systems. This non-linear combination of distributaries and an alluvial fan of spring fed creeks is treated by various state agencies and the local community as either a water conveyance network or natural stream, depending on the location being considered, or the time of year. This conundrum needs to be described and evaluated so that a coordinated approach can be developed and implemented to improve these unusual streams and the farms, fish, and wildlife that depend on them. This assessment consolidates information on the Little Walla Walla River and springs area with regards to historic and current flows, water use, land use, fish presence, habitat conditions, fish passage barriers, and water quality. This can then be utilized in developing a plan that aim to improve and preserve the environmental and economic health of this stream network, and to better define management and enhancement options. An Initial Action Plan of Goals and Actions is put forward as a discussion framework. Some of these actions are just conceptual, others are ongoing, but can be expanded to a greater scale. Title: Little Walla Walla River Assessment and Initial Action Plan (2010) Abstract -- The Little Walla Walla River and Spring Branch system is an anomaly when compared to most river systems. This non-linear combination of distributaries and an alluvial fan of spring fed creeks is treated by various state agencies and the local community as either a water conveyance network or natural stream, depending on the location being considered, or the time of year. This conundrum needs to be described and evaluated so that a coordinated approach can be developed and implemented to improve these unusual streams and the farms, fish, and wildlife that depend on them. This assessment consolidates information on the Little Walla Walla River and springs area with regards to historic and current flows, water use, land use, fish presence, habitat conditions, fish passage barriers, and water quality. This can then be utilized in developing a plan that aim to improve and preserve the environmental and economic health of this stream network, and to better define management and enhancement options. An Initial Action Plan of Goals and Actions is put forward as a discussion framework. Some of these actions are just conceptual, others are ongoing, but can be expanded to a greater scale. Close

• 33. [Article] Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment

  Abstract -- The 2005 Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment was prepared by the Owyhee Watershed council. This document discuesses history of each subbasin its channel ...

  Citation × Citation Citation Abstract Copy Title: Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment Abstract -- The 2005 Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment was prepared by the Owyhee Watershed council. This document discuesses history of each subbasin its channel types, land uses in that subbasin, hydrology, wateruse habitat types, fish and wildlife in the area, and geology. Towards the end of the document it addresses the risks to the subbasins watershed including sedimentation, waterquality and proposed monitoring and restoration for each subbasin. Title: Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment Abstract -- The 2005 Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment was prepared by the Owyhee Watershed council. This document discuesses history of each subbasin its channel types, land uses in that subbasin, hydrology, wateruse habitat types, fish and wildlife in the area, and geology. Towards the end of the document it addresses the risks to the subbasins watershed including sedimentation, waterquality and proposed monitoring and restoration for each subbasin. Close

• 34. [Article] Keene Creek Watershed Assessment

  Abstract -- The 2005 Keene Creek Watershed Assessment was prepared by friends of the Green Springs project. The document discusses history of the watershed including land use, wildfire risk and a historical ...

  Citation × Citation Citation Abstract Copy Title: Keene Creek Watershed Assessment Abstract -- The 2005 Keene Creek Watershed Assessment was prepared by friends of the Green Springs project. The document discusses history of the watershed including land use, wildfire risk and a historical timeline. In addition it discusses assessments of habitat types, sediment, channel modification and current hydrology. Following the assessments it discusses fish and wildlife found in the watershed. The end of the document discusses the action plan to restore or conserve the watershed. Title: Keene Creek Watershed Assessment Abstract -- The 2005 Keene Creek Watershed Assessment was prepared by friends of the Green Springs project. The document discusses history of the watershed including land use, wildfire risk and a historical timeline. In addition it discusses assessments of habitat types, sediment, channel modification and current hydrology. Following the assessments it discusses fish and wildlife found in the watershed. The end of the document discusses the action plan to restore or conserve the watershed. Close

• 35. [Article] Lower Crooked River Watershed Assessment

  Abstract -- The 2008 Lower Crooked River Watershed Assessment was prepared by the Crooked River Watershed Council. The purpose of the document is to talk about the watershed and its past and current history ...

  Citation × Citation Citation Abstract Copy Title: Lower Crooked River Watershed Assessment Abstract -- The 2008 Lower Crooked River Watershed Assessment was prepared by the Crooked River Watershed Council. The purpose of the document is to talk about the watershed and its past and current history and issues that have taken place in the watershed and how those relate to state and federal regulations. In addition it talks about the diversity of habitat found within the watershed basin and the fish and wildlife that inhabit the area. Following the past and current history the document discusses the assesment and offers some proposed changes to the watershed to ensure higher ecological potential. Title: Lower Crooked River Watershed Assessment Abstract -- The 2008 Lower Crooked River Watershed Assessment was prepared by the Crooked River Watershed Council. The purpose of the document is to talk about the watershed and its past and current history and issues that have taken place in the watershed and how those relate to state and federal regulations. In addition it talks about the diversity of habitat found within the watershed basin and the fish and wildlife that inhabit the area. Following the past and current history the document discusses the assesment and offers some proposed changes to the watershed to ensure higher ecological potential. Close

• 36. [Article] Alvord Lake Sub-basin Watershed Assessment

  Abstract -- The 2006 Alvord Lake Sub-basin Watershed Assessment was prepared by Strategic Staffing Services, Inc for the Harney County Watershed Council. The Alvord Lake Sub-Basin is approximately 1,280,000 ...

  Citation × Citation Citation Abstract Copy Title: Alvord Lake Sub-basin Watershed Assessment Abstract -- The 2006 Alvord Lake Sub-basin Watershed Assessment was prepared by Strategic Staffing Services, Inc for the Harney County Watershed Council. The Alvord Lake Sub-Basin is approximately 1,280,000 acres. The purpose of the document is awareness of threats to the region including noxious weeds, wildfire, and human uses. The document gives an overview of assessment results, stream health and the critical fish and wildlife species found in the sub-basin. Title: Alvord Lake Sub-basin Watershed Assessment Abstract -- The 2006 Alvord Lake Sub-basin Watershed Assessment was prepared by Strategic Staffing Services, Inc for the Harney County Watershed Council. The Alvord Lake Sub-Basin is approximately 1,280,000 acres. The purpose of the document is awareness of threats to the region including noxious weeds, wildfire, and human uses. The document gives an overview of assessment results, stream health and the critical fish and wildlife species found in the sub-basin. Close

• 37. [Article] Harney-Malheur Lakes Subbasin Assessment

  Abstract -- Harney-Malheur Lakes Subbasin Assessment was completed by the Harney County Watershed Council. The Harney-Malheur Lakes Subbasin is 894,061 acres in Harney County, Oregon. The document discusses ...

  Citation × Citation Citation Abstract Copy Title: Harney-Malheur Lakes Subbasin Assessment Abstract -- Harney-Malheur Lakes Subbasin Assessment was completed by the Harney County Watershed Council. The Harney-Malheur Lakes Subbasin is 894,061 acres in Harney County, Oregon. The document discusses the history of the Harney-Malheur Lakes Subbasin including the environmental factors associated withthe subbasin (climate, geology, hydrology, ground and surface water and water supply. Fish and wildlife, habitat and vegetation types are discussed to understand the main inhabitants and how best to manage those populations found in the subbasin. The last section of the document discusses current issues within the subbasin and the reccomendations to deal with those issues. Title: Harney-Malheur Lakes Subbasin Assessment Abstract -- Harney-Malheur Lakes Subbasin Assessment was completed by the Harney County Watershed Council. The Harney-Malheur Lakes Subbasin is 894,061 acres in Harney County, Oregon. The document discusses the history of the Harney-Malheur Lakes Subbasin including the environmental factors associated withthe subbasin (climate, geology, hydrology, ground and surface water and water supply. Fish and wildlife, habitat and vegetation types are discussed to understand the main inhabitants and how best to manage those populations found in the subbasin. The last section of the document discusses current issues within the subbasin and the reccomendations to deal with those issues. Close

• 38. [Article] Silves Subbasin Assessment

  Abstract -- The 2000 Silves Subbasin Assessment was completed by the Harney County Watershed Council. The subbasin is approximately 844,976 acres in Harney and Grant County, Oregon. The document first ...

  Citation × Citation Citation Abstract Copy Title: Silves Subbasin Assessment Abstract -- The 2000 Silves Subbasin Assessment was completed by the Harney County Watershed Council. The subbasin is approximately 844,976 acres in Harney and Grant County, Oregon. The document first gives a description of the subbasin and its climate, geology, hydrology and water supply. Second it discusses the fish, wildlife, habitat and the conditions of the steams in the subbasin. The document then discusses the current issues in the subbasin and offers reccommendations for managment to ensure the highest ecological potential for the subbasin and to accomplish the goals of the Harney County Watershed Council. Title: Silves Subbasin Assessment Abstract -- The 2000 Silves Subbasin Assessment was completed by the Harney County Watershed Council. The subbasin is approximately 844,976 acres in Harney and Grant County, Oregon. The document first gives a description of the subbasin and its climate, geology, hydrology and water supply. Second it discusses the fish, wildlife, habitat and the conditions of the steams in the subbasin. The document then discusses the current issues in the subbasin and offers reccommendations for managment to ensure the highest ecological potential for the subbasin and to accomplish the goals of the Harney County Watershed Council. Close

• 39. [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

• 40. [Article] OASIS - Use of Stratified Random Sampling to Estimate the Abundance of Oregon Coastal Coho Salmon

  Abstract -- Management of coho salmon (Oncorhynchus kisutch) in Oregon is heavily dependent upon estimates of the spawning escapement of Oregon coastal natural OCN) coho salmon. OCN coho salmon consist ...

  Citation × Citation Citation Abstract Copy Title: OASIS - Use of Stratified Random Sampling to Estimate the Abundance of Oregon Coastal Coho Salmon Abstract -- Management of coho salmon (Oncorhynchus kisutch) in Oregon is heavily dependent upon estimates of the spawning escapement of Oregon coastal natural OCN) coho salmon. OCN coho salmon consist of an aggregate of wild coho salmon populations that originate from Oregon coastal river basins south of the Columbia River and north of Cape Blanco. OCN spawning escapement estimates are an integral component of the management of salmon fisheries in the ocean. Escapement estimates are also used to assess progress towards meeting goals addressed in Oregon's Coho Salmon Plan (ODFW 1982), the Salmon Framework Plan of the Pacific Fisheries Management Council (PFMC 1984), the Oregon Department of Fish and Wildlife (ODFW) Wild Fish Policy, the Oregon Salmon Restoration Plan (Oregon 1997) and various management plans for coastal basins. During 1985-86, the Oregon State University Department of Statistics was contracted by ODFW to review the method used to estimate OCN spawning escapement and to recommend procedures for improving the methodology (Ganio et al.1986). Five sources of bias were identified in the methodology: (1) methods of survey site selection, (2) estimates of the life span of fish in survey sites, (3) counting of nonspawning fish in survey sites, (4) under-counting of fish in survey sites, and (5)estimates of total miles of spawning habitat. The authors concluded that the method of survey site selection was probably the most serious source of bias because of evidence that survey sites were predominantly located in "better than average" spawning habitat. To improve the methodology used to estimate OCN escapement, the authors proposed a sampling plan designed to reduce survey site selection bias and to provide an estimate of the precision of the escapement estimate. The recommended sampling plan incorporated a stratified random sampling (SRS) scheme, where, within geographic 2 sampling units, survey sites are randomly selected from the estimated available miles of coho salmon spawning habitat. Although the SRS survey procedure proposed by Ganio et al. (1986) was a means of vastly improving OCN escapement estimates, more information was needed before this procedure could be adopted. Procedures needed to be developed for selecting and surveying random survey sites (Ganio et al. 1986). The feasibility of incorporating additional levels of stratification to improve the efficiency of the sampling program and account for additional escapement resulting from hatchery fish was needed. More accurate estimates of the available spawning habitat for coho salmon in coastal watersheds were necessary for the development of an effective SRS scheme and ultimately, as a means of improving absolute escapement estimates. Finally, the relationship between spawning densities estimated from the standard coho salmon survey program and spawning densities estimated from a SRS program needed to be determined. Title: OASIS - Use of Stratified Random Sampling to Estimate the Abundance of Oregon Coastal Coho Salmon Abstract -- Management of coho salmon (Oncorhynchus kisutch) in Oregon is heavily dependent upon estimates of the spawning escapement of Oregon coastal natural OCN) coho salmon. OCN coho salmon consist of an aggregate of wild coho salmon populations that originate from Oregon coastal river basins south of the Columbia River and north of Cape Blanco. OCN spawning escapement estimates are an integral component of the management of salmon fisheries in the ocean. Escapement estimates are also used to assess progress towards meeting goals addressed in Oregon's Coho Salmon Plan (ODFW 1982), the Salmon Framework Plan of the Pacific Fisheries Management Council (PFMC 1984), the Oregon Department of Fish and Wildlife (ODFW) Wild Fish Policy, the Oregon Salmon Restoration Plan (Oregon 1997) and various management plans for coastal basins. During 1985-86, the Oregon State University Department of Statistics was contracted by ODFW to review the method used to estimate OCN spawning escapement and to recommend procedures for improving the methodology (Ganio et al.1986). Five sources of bias were identified in the methodology: (1) methods of survey site selection, (2) estimates of the life span of fish in survey sites, (3) counting of nonspawning fish in survey sites, (4) under-counting of fish in survey sites, and (5)estimates of total miles of spawning habitat. The authors concluded that the method of survey site selection was probably the most serious source of bias because of evidence that survey sites were predominantly located in "better than average" spawning habitat. To improve the methodology used to estimate OCN escapement, the authors proposed a sampling plan designed to reduce survey site selection bias and to provide an estimate of the precision of the escapement estimate. The recommended sampling plan incorporated a stratified random sampling (SRS) scheme, where, within geographic 2 sampling units, survey sites are randomly selected from the estimated available miles of coho salmon spawning habitat. Although the SRS survey procedure proposed by Ganio et al. (1986) was a means of vastly improving OCN escapement estimates, more information was needed before this procedure could be adopted. Procedures needed to be developed for selecting and surveying random survey sites (Ganio et al. 1986). The feasibility of incorporating additional levels of stratification to improve the efficiency of the sampling program and account for additional escapement resulting from hatchery fish was needed. More accurate estimates of the available spawning habitat for coho salmon in coastal watersheds were necessary for the development of an effective SRS scheme and ultimately, as a means of improving absolute escapement estimates. Finally, the relationship between spawning densities estimated from the standard coho salmon survey program and spawning densities estimated from a SRS program needed to be determined. Close