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• 61. [Article] Comprehensive Plan for Production and Management of Oregon's Anadromous Salmon and Trout: Coastal Chinook Salmon Plan

  Abstract -- This is the fourth in a series of individual species plans concerning management of anadromous salmonid populations in the state of Oregon. This plan focuses on the actions the agency will ...

  Citation × Citation Citation Abstract Copy Title: Comprehensive Plan for Production and Management of Oregon's Anadromous Salmon and Trout: Coastal Chinook Salmon Plan Abstract -- This is the fourth in a series of individual species plans concerning management of anadromous salmonid populations in the state of Oregon. This plan focuses on the actions the agency will take regarding chinook salmon Oncorhynchus tshawytscha populations produced in Oregon Coastal watersheds from the Necanicum River in the north to the Winchuck River at the Oregon-California border. Management of chinook salmon in the Columbia River basin is shaped by a cooperative agreement with the state of Washington, the Columbia River Treaty Indian Tribes, and the Federal Government. This management plan for wild and hatchery coastal chinook salmon in coastal river basins is the product of an ongoing planning process. The process began with the preparation of a report that contains descriptions of the life histories and assessments of recent trends in the run strengths of chinook salmon stocks in Oregon coastal river basins (Nicholas and Hankin 1988). ODFW staff and public representatives developed a comprehensive list of issues of concern and actions needed to improve management of coastal chinook salmon. These actions were based in part on a review of historic and contemporary habitat, harvest, and enhancement management practices in Oregon and on a review of the fisheries scientific literature. Title: Comprehensive Plan for Production and Management of Oregon's Anadromous Salmon and Trout: Coastal Chinook Salmon Plan Abstract -- This is the fourth in a series of individual species plans concerning management of anadromous salmonid populations in the state of Oregon. This plan focuses on the actions the agency will take regarding chinook salmon Oncorhynchus tshawytscha populations produced in Oregon Coastal watersheds from the Necanicum River in the north to the Winchuck River at the Oregon-California border. Management of chinook salmon in the Columbia River basin is shaped by a cooperative agreement with the state of Washington, the Columbia River Treaty Indian Tribes, and the Federal Government. This management plan for wild and hatchery coastal chinook salmon in coastal river basins is the product of an ongoing planning process. The process began with the preparation of a report that contains descriptions of the life histories and assessments of recent trends in the run strengths of chinook salmon stocks in Oregon coastal river basins (Nicholas and Hankin 1988). ODFW staff and public representatives developed a comprehensive list of issues of concern and actions needed to improve management of coastal chinook salmon. These actions were based in part on a review of historic and contemporary habitat, harvest, and enhancement management practices in Oregon and on a review of the fisheries scientific literature. Close

• 62. [Article] A Trout Management Program for the Main Stem Lower Deschutes River 1978

  Abstract -- The Deschutes River is a north flowing tributary of the Columbia River in Central Oregon and is a designated scenic waterway. Summer run steelhead and resident trout are the most important ...

  Citation × Citation Citation Abstract Copy Title: A Trout Management Program for the Main Stem Lower Deschutes River 1978 Abstract -- The Deschutes River is a north flowing tributary of the Columbia River in Central Oregon and is a designated scenic waterway. Summer run steelhead and resident trout are the most important species to the local recreational fishery, although significant numbers of spring, summer, and fall chinook are also taken from the river. The salmon contribute significantly to fisheries in the Pacific Ocean and Columbia River and steelhead enter fisheries in the Columbia. The Deschutes also supports a good population of whitefish, lesser numbers of other trout species, small runs of coho and sockeye salmon, and several species of nongame fish. Title: A Trout Management Program for the Main Stem Lower Deschutes River 1978 Abstract -- The Deschutes River is a north flowing tributary of the Columbia River in Central Oregon and is a designated scenic waterway. Summer run steelhead and resident trout are the most important species to the local recreational fishery, although significant numbers of spring, summer, and fall chinook are also taken from the river. The salmon contribute significantly to fisheries in the Pacific Ocean and Columbia River and steelhead enter fisheries in the Columbia. The Deschutes also supports a good population of whitefish, lesser numbers of other trout species, small runs of coho and sockeye salmon, and several species of nongame fish. Close

• 63. [Article] Fish Management Plan Detroit Reservoir 1982

  Abstract -- Detroit Reservoir is a 3,580 acre Corps of Engineers multipurpose reservoir located at river mile 48.5 on the North Santiam River. The dam is located just below the confluence of the North ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Detroit Reservoir 1982 Abstract -- Detroit Reservoir is a 3,580 acre Corps of Engineers multipurpose reservoir located at river mile 48.5 on the North Santiam River. The dam is located just below the confluence of the North Santiam and Breitenbush rivers. The reservoir was impounded in 1953 and is 9 miles long and over 1 mile at its widest point. Surface elevation is 1,569 ft at full pool. The reservoir is located about 50 miles east of Salem and road access is via State Highway 22. A large overnight campground and a day use area, both with boat launching facilities, are maintained by the Parks and Recreation Division of the Oregon Department of Transportation. The U.S. Forest Service (USFS) maintains two campgrounds on the south side of the reservoir, and there are two commercial boat concessions near the town of Detroit. Most of the area surrounding the lake is USFS land, although there are some private homesites on the North Santiam arm near Detroit. The reservoir receives heavy recreational use during the spring and summer months, including fishing, swimming, boating, camping, and water skiing. Fish passage structures were not incorporated in either Detroit or Big Cliff (reregulating dam) dams and consequently some 82 miles of stream are no longer available to former runs of spring chinook salmon and winter steelhead. In July 1982, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Detroit Reservoir for hatchery fish. Title: Fish Management Plan Detroit Reservoir 1982 Abstract -- Detroit Reservoir is a 3,580 acre Corps of Engineers multipurpose reservoir located at river mile 48.5 on the North Santiam River. The dam is located just below the confluence of the North Santiam and Breitenbush rivers. The reservoir was impounded in 1953 and is 9 miles long and over 1 mile at its widest point. Surface elevation is 1,569 ft at full pool. The reservoir is located about 50 miles east of Salem and road access is via State Highway 22. A large overnight campground and a day use area, both with boat launching facilities, are maintained by the Parks and Recreation Division of the Oregon Department of Transportation. The U.S. Forest Service (USFS) maintains two campgrounds on the south side of the reservoir, and there are two commercial boat concessions near the town of Detroit. Most of the area surrounding the lake is USFS land, although there are some private homesites on the North Santiam arm near Detroit. The reservoir receives heavy recreational use during the spring and summer months, including fishing, swimming, boating, camping, and water skiing. Fish passage structures were not incorporated in either Detroit or Big Cliff (reregulating dam) dams and consequently some 82 miles of stream are no longer available to former runs of spring chinook salmon and winter steelhead. In July 1982, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage Detroit Reservoir for hatchery fish. Close

• 64. [Article] Part IV. Anadromous Fish Production Plans

  Abstract -- Early-returning coho salmon in the Sandy Subbasin are produced at the Sandy Hatchery and managed as a hatchery stock. They also produce naturally in numerous tributaries and the upper mainstern. ...

  Citation × Citation Citation Abstract Copy Title: Part IV. Anadromous Fish Production Plans Abstract -- Early-returning coho salmon in the Sandy Subbasin are produced at the Sandy Hatchery and managed as a hatchery stock. They also produce naturally in numerous tributaries and the upper mainstern. Numbers for early-run coho that return to spawn naturally are represented best by Marmot Darn counts. Although some spawning habitat for coho exists below Marmot Darn, the optimum tributaries are above the darn in upper tributaries and side channels of the mainstem. Construction of Marmot Dam and the Bull Run Reservoir system has reduced the available habitat historically used by coho salmon. Although Marmot Darn is laddered, flows for many years after construction were not adequate to attract or allow passage above the dam. Minimum flow agreements now maintain flows adequate for fish passage and attraction. The Bull Run River remains blocked for anadrornous fish passage above the dam for Reservoir 2; the city of Portland mitigates for the loss of habitat by funding the release of juvenile fish elsewhere in the subbasin. Title: Part IV. Anadromous Fish Production Plans Abstract -- Early-returning coho salmon in the Sandy Subbasin are produced at the Sandy Hatchery and managed as a hatchery stock. They also produce naturally in numerous tributaries and the upper mainstern. Numbers for early-run coho that return to spawn naturally are represented best by Marmot Darn counts. Although some spawning habitat for coho exists below Marmot Darn, the optimum tributaries are above the darn in upper tributaries and side channels of the mainstem. Construction of Marmot Dam and the Bull Run Reservoir system has reduced the available habitat historically used by coho salmon. Although Marmot Darn is laddered, flows for many years after construction were not adequate to attract or allow passage above the dam. Minimum flow agreements now maintain flows adequate for fish passage and attraction. The Bull Run River remains blocked for anadrornous fish passage above the dam for Reservoir 2; the city of Portland mitigates for the loss of habitat by funding the release of juvenile fish elsewhere in the subbasin. Close

• 65. [Article] Sandy River Basin Fish Management Plan 1997 Draft

  Abstract -- The Sandy River and its tributaries originate high on the west and south slopes of Mount Hood, flow approximately 55 miles in a northwesterly direction and enter the Columbia River near Troutdale ...

  Citation × Citation Citation Abstract Copy Title: Sandy River Basin Fish Management Plan 1997 Draft Abstract -- The Sandy River and its tributaries originate high on the west and south slopes of Mount Hood, flow approximately 55 miles in a northwesterly direction and enter the Columbia River near Troutdale (Columbia RM 120.5). The Sandy basin is situated in Multnomah and Clackamas counties (EPA reach 17080001), and drains approximately 508 square miles. The Sandy River basin is comprised of several subbasins, many of which are uniquely distinct hydrologically and geomorphologically. Principle tributaries include the Zigzag River, Still Creek, and the Salmon River in the upper basin and the Bull Run River, Gordon, Cedar, and Beaver creeks in the lower basin. Many other smaller tributaries located throughout the basin contribute significantly to stream flows and provide habitat for a wide array of fish and wildlife assemblages. The Sandy River is well known for its sport fishing. Winter steelhead, summer steelhead, and spring chinook are the most sought after species. Both winter and summer steelhead, coho, and spring chinook are supplemented with hatchery produced fish. Rainbow trout and fall chinook are no longer stocked in flowing waters of the Sandy River basin. In the late 1980's the Northwest Power Planning Council administered a planning process to create a management plan for the Columbia River basin. As a part of that process, a subbasin plan concerning management of steelhead and salmon was written for the Sandy River basin. This document, the draft "Sandy River Basin Fish Management Plan", significantly expands on the Northwest Power Planning Council document by adding resident fish species and new information on anadromous species and will ultimately produce the final plan used to guide fish resource management in the basin for the next 5 to 10 years. Title: Sandy River Basin Fish Management Plan 1997 Draft Abstract -- The Sandy River and its tributaries originate high on the west and south slopes of Mount Hood, flow approximately 55 miles in a northwesterly direction and enter the Columbia River near Troutdale (Columbia RM 120.5). The Sandy basin is situated in Multnomah and Clackamas counties (EPA reach 17080001), and drains approximately 508 square miles. The Sandy River basin is comprised of several subbasins, many of which are uniquely distinct hydrologically and geomorphologically. Principle tributaries include the Zigzag River, Still Creek, and the Salmon River in the upper basin and the Bull Run River, Gordon, Cedar, and Beaver creeks in the lower basin. Many other smaller tributaries located throughout the basin contribute significantly to stream flows and provide habitat for a wide array of fish and wildlife assemblages. The Sandy River is well known for its sport fishing. Winter steelhead, summer steelhead, and spring chinook are the most sought after species. Both winter and summer steelhead, coho, and spring chinook are supplemented with hatchery produced fish. Rainbow trout and fall chinook are no longer stocked in flowing waters of the Sandy River basin. In the late 1980's the Northwest Power Planning Council administered a planning process to create a management plan for the Columbia River basin. As a part of that process, a subbasin plan concerning management of steelhead and salmon was written for the Sandy River basin. This document, the draft "Sandy River Basin Fish Management Plan", significantly expands on the Northwest Power Planning Council document by adding resident fish species and new information on anadromous species and will ultimately produce the final plan used to guide fish resource management in the basin for the next 5 to 10 years. Close

• 66. [Article] Fish Management Plan Siuslaw River 1979

  Abstract -- The Siuslaw River is a large system entering the Pacific Ocean near Florence. The system contains about 950 miles of stream and produces resident and anadromous cutthroat trout,winter steelhead, ...

  Citation × Citation Citation Abstract Copy Title: Fish Management Plan Siuslaw River 1979 Abstract -- The Siuslaw River is a large system entering the Pacific Ocean near Florence. The system contains about 950 miles of stream and produces resident and anadromous cutthroat trout,winter steelhead, and coho and fall chinook salmon. Small numbers of spring chinook are found in the system and shad and striped bass are also present. Good numbers of wild fish of all species are produced in the Siuslaw and ODFW annually releases sea-run cutthroat and winter steelhead. Extensive fisheries have developed on this combination of wild and hatchery fish. There are no special angling regulations in effect at present other than an angling deadline on Lake Creek. Three private salmon hatcheries have received permits to release fish into the Siuslaw. Although these facilities have not yet obtained significant returns of adults, the potential exists for large numbers of hatchery adults to return to the system. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage the Siuslaw River system, except for Triangle Lake and its tributaries, for wild and hatchery trout, steelhead, and salmon. Hatchery fish will be released in areas and at sizes and times to maximize their contribution to the sport fisheries in the system and to minimize their impact on the extensive wild fish populations present. Trout populations in Triangle Lake and its tributaries will be managed for wild fish. Title: Fish Management Plan Siuslaw River 1979 Abstract -- The Siuslaw River is a large system entering the Pacific Ocean near Florence. The system contains about 950 miles of stream and produces resident and anadromous cutthroat trout,winter steelhead, and coho and fall chinook salmon. Small numbers of spring chinook are found in the system and shad and striped bass are also present. Good numbers of wild fish of all species are produced in the Siuslaw and ODFW annually releases sea-run cutthroat and winter steelhead. Extensive fisheries have developed on this combination of wild and hatchery fish. There are no special angling regulations in effect at present other than an angling deadline on Lake Creek. Three private salmon hatcheries have received permits to release fish into the Siuslaw. Although these facilities have not yet obtained significant returns of adults, the potential exists for large numbers of hatchery adults to return to the system. In July 1979, the Oregon Fish and Wildlife Commission accepted the Department's recommendation to manage the Siuslaw River system, except for Triangle Lake and its tributaries, for wild and hatchery trout, steelhead, and salmon. Hatchery fish will be released in areas and at sizes and times to maximize their contribution to the sport fisheries in the system and to minimize their impact on the extensive wild fish populations present. Trout populations in Triangle Lake and its tributaries will be managed for wild fish. Close

• 67. [Article] Coos River Basin Master Plan for Angler Access and Associated Recreational Uses 1967

  Abstract -- The Coos River system is composed of the Coos River and the Millicoma River. The Coos drains the southeast portion of the basin and the Millicoma the northeast. The two rivers fork at river ...

  Citation × Citation Citation Abstract Copy Title: Coos River Basin Master Plan for Angler Access and Associated Recreational Uses 1967 Abstract -- The Coos River system is composed of the Coos River and the Millicoma River. The Coos drains the southeast portion of the basin and the Millicoma the northeast. The two rivers fork at river mile 5.5 above its confluence with Coos Bay at Eastside. The principle fisheries in the Coos system are winter steelhead, striped bass, shad, coho salmon, sea-run cutthroat trout and rainbow trout. Title: Coos River Basin Master Plan for Angler Access and Associated Recreational Uses 1967 Abstract -- The Coos River system is composed of the Coos River and the Millicoma River. The Coos drains the southeast portion of the basin and the Millicoma the northeast. The two rivers fork at river mile 5.5 above its confluence with Coos Bay at Eastside. The principle fisheries in the Coos system are winter steelhead, striped bass, shad, coho salmon, sea-run cutthroat trout and rainbow trout. Close

• 68. [Article] Coquille River Basin Master Plan for Angler Access and Associated Recreational Uses 1966

  Abstract -- The Coquille River system is comparable to some of the better coastal streams in terms of angling success for salmon and steelhead. For catch success by anglers, the winter steelhead fishery ...

  Citation × Citation Citation Abstract Copy Title: Coquille River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Coquille River system is comparable to some of the better coastal streams in terms of angling success for salmon and steelhead. For catch success by anglers, the winter steelhead fishery ranks as one of the best in the State and near the top for fall salmon. The Coquille River also supports active fisheries for sea-run cutthroat trout in and near tidewater and resident trout in the upper reaches. There is also a growing sport fishery for shad. Title: Coquille River Basin Master Plan for Angler Access and Associated Recreational Uses 1966 Abstract -- The Coquille River system is comparable to some of the better coastal streams in terms of angling success for salmon and steelhead. For catch success by anglers, the winter steelhead fishery ranks as one of the best in the State and near the top for fall salmon. The Coquille River also supports active fisheries for sea-run cutthroat trout in and near tidewater and resident trout in the upper reaches. There is also a growing sport fishery for shad. Close

• 69. [Article] Imnaha River Basin Master Plan for Angler Access and Associated Recreational Uses 1996

  Abstract -- The Imnaha River is a main tributary to the Snake River and drains a large portion of northeastern Oregon. The river system is 80 miles long and headwaters in the most southerly corner of Wallowa ...

  Citation × Citation Citation Abstract Copy Title: Imnaha River Basin Master Plan for Angler Access and Associated Recreational Uses 1996 Abstract -- The Imnaha River is a main tributary to the Snake River and drains a large portion of northeastern Oregon. The river system is 80 miles long and headwaters in the most southerly corner of Wallowa County, where tall pines are carpeted beneath with lush grass and a few smaller lodgepole. This is a very beautiful area and one that is not easily forgotten if it is once visited. The river runs cold and clear in this upper area and harbors rainbow and Dolly Varden trout. Downstream near the mouth of Gumboot Creek the river enters the canyon. The canyon walls remind one of the Snake River Canyon with its high bluffs and rimrocks. The fishery is a little more diversified in this area. In addition to a summer trout fishery, steelhead and salmon are taken in spring and early summer. At the present time salmon and steelhead angling pressure is concentrated below Horse Creek, but it is anticipated that this pressure will shift upstream when High Mountain Sheep Reservoir is filled. The system has been broken into four areas, each with their individual characteristics. The following sections describe these areas more fully and each access site is described in detail. Title: Imnaha River Basin Master Plan for Angler Access and Associated Recreational Uses 1996 Abstract -- The Imnaha River is a main tributary to the Snake River and drains a large portion of northeastern Oregon. The river system is 80 miles long and headwaters in the most southerly corner of Wallowa County, where tall pines are carpeted beneath with lush grass and a few smaller lodgepole. This is a very beautiful area and one that is not easily forgotten if it is once visited. The river runs cold and clear in this upper area and harbors rainbow and Dolly Varden trout. Downstream near the mouth of Gumboot Creek the river enters the canyon. The canyon walls remind one of the Snake River Canyon with its high bluffs and rimrocks. The fishery is a little more diversified in this area. In addition to a summer trout fishery, steelhead and salmon are taken in spring and early summer. At the present time salmon and steelhead angling pressure is concentrated below Horse Creek, but it is anticipated that this pressure will shift upstream when High Mountain Sheep Reservoir is filled. The system has been broken into four areas, each with their individual characteristics. The following sections describe these areas more fully and each access site is described in detail. Close

• 70. [Article] Preseason Report I, Stock Abundance Analysis for 1998, Ocean Salmon Fisheries

  Abstract -- This is the second report in an annual series of four reports prepared by the Salmon Technical Team (STT) of the Pacific Fishery Management Council (Council) to document and help guide salmon ...

  Citation × Citation Citation Abstract Copy Title: Preseason Report I, Stock Abundance Analysis for 1998, Ocean Salmon Fisheries Abstract -- This is the second report in an annual series of four reports prepared by the Salmon Technical Team (STT) of the Pacific Fishery Management Council (Council) to document and help guide salmon fishery management off the coasts of Washington, Oregon, and California. This report will be formally reviewed at the Council's March meeting. The third and fourth reports in this series will be developed at the close of the March and April Council meetings, respectively. They will analyze the impacts of the Council's proposed and final ocean salmon fishery management recommendations for 1998. This report provides 1998 salmon stock abundance projections and an analysis of the impacts of 1997 regulations, or regulatory procedures. The report focuses on chinook and coho stocks that have been important in determining Council fisheries in recent years. However, decisions on whether or not to propose Endangered Species Act listings for several chinook stocks ranging from central California to Puget Sound are anticipated in the near future. In the event that the National Marine Fisheries Service proposes new listings, information concerning the status of these stocks may significantly affect Council deliberations on the final salmon fishing seasons. Chapter I provides a summary of the 1998 stock abundance projections. Chapters II and Ill provide detailed stock-by-stock analyses of abundance and a description of prediction methodology and accuracy of past abundance predictions for chinook and coho salmon, respectively. Chapter IV summarizes abundance information for pink salmon. Four appendices provide supplementary information as follows: Appendix A provides a summary of Council stock management goals; Appendix 8 contains pertinent data for Oregon production index (OPI) area coho; Appendix C provides historical salmon catch data for the Cape Flattery and Strait of Juan de Fuca areas; and Appendix D contains the Council's current harvest allocation schedules. Summaries of preseason and postseason abundance estimates are included in: • Table 11-2 for Central Valley Index fall chinqok since 1985; • Table 11-4 for Klamath River fall chinook since 1985; • Table 11-8 for selected Columbia River fall chinook stocks since 1984; • Table 11-9 for Puget Sound summer/fall chinook stocks since 1993; • Table 111-1 for OPI area produced coho stocks since 1992 and • Table 111-3 for selected naturally spawning Puget Sound and Washington coastal coho stocks since 1984. Differences between preseason and postseason estimates are caused by a number of factors, including: (1) inaccuracies in abundance forecasts for these and other stocks which are exploited by mixed stock fisheries, (2) deviations of actual catches and fishery patterns from preseason expectations, (3) anomalies in stock distribution and migration patterns, and (4) for the Puget Sound coho stocks, differences in assessment methodologies (postseason estimates are based on run reconstruction assumptions which differ substantially from those represented in the Fishery Regulatory Assessment Model). The STT has not been able to complete a proper evaluation of abundance estimates which would take all these factors into account. Title: Preseason Report I, Stock Abundance Analysis for 1998, Ocean Salmon Fisheries Abstract -- This is the second report in an annual series of four reports prepared by the Salmon Technical Team (STT) of the Pacific Fishery Management Council (Council) to document and help guide salmon fishery management off the coasts of Washington, Oregon, and California. This report will be formally reviewed at the Council's March meeting. The third and fourth reports in this series will be developed at the close of the March and April Council meetings, respectively. They will analyze the impacts of the Council's proposed and final ocean salmon fishery management recommendations for 1998. This report provides 1998 salmon stock abundance projections and an analysis of the impacts of 1997 regulations, or regulatory procedures. The report focuses on chinook and coho stocks that have been important in determining Council fisheries in recent years. However, decisions on whether or not to propose Endangered Species Act listings for several chinook stocks ranging from central California to Puget Sound are anticipated in the near future. In the event that the National Marine Fisheries Service proposes new listings, information concerning the status of these stocks may significantly affect Council deliberations on the final salmon fishing seasons. Chapter I provides a summary of the 1998 stock abundance projections. Chapters II and Ill provide detailed stock-by-stock analyses of abundance and a description of prediction methodology and accuracy of past abundance predictions for chinook and coho salmon, respectively. Chapter IV summarizes abundance information for pink salmon. Four appendices provide supplementary information as follows: Appendix A provides a summary of Council stock management goals; Appendix 8 contains pertinent data for Oregon production index (OPI) area coho; Appendix C provides historical salmon catch data for the Cape Flattery and Strait of Juan de Fuca areas; and Appendix D contains the Council's current harvest allocation schedules. Summaries of preseason and postseason abundance estimates are included in: • Table 11-2 for Central Valley Index fall chinqok since 1985; • Table 11-4 for Klamath River fall chinook since 1985; • Table 11-8 for selected Columbia River fall chinook stocks since 1984; • Table 11-9 for Puget Sound summer/fall chinook stocks since 1993; • Table 111-1 for OPI area produced coho stocks since 1992 and • Table 111-3 for selected naturally spawning Puget Sound and Washington coastal coho stocks since 1984. Differences between preseason and postseason estimates are caused by a number of factors, including: (1) inaccuracies in abundance forecasts for these and other stocks which are exploited by mixed stock fisheries, (2) deviations of actual catches and fishery patterns from preseason expectations, (3) anomalies in stock distribution and migration patterns, and (4) for the Puget Sound coho stocks, differences in assessment methodologies (postseason estimates are based on run reconstruction assumptions which differ substantially from those represented in the Fishery Regulatory Assessment Model). The STT has not been able to complete a proper evaluation of abundance estimates which would take all these factors into account. Close