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State Library of Oregon: Federal Documents

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Survival of Wells Hatchery steelhead in the mid-Columbia River, 1984. Part 1, 1984 smolt monitoring program annual report

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TitleSurvival of Wells Hatchery steelhead in the mid-Columbia River, 1984. Part 1, 1984 smolt monitoring program annual reportPersonal NameMcConnaha, Willis E.Basham, Larry R.Corporate NameUnited States Bonneville Power AdministrationSubjectSteelhead (Fish) -- MortalityFishes -- Migration -- Columbia RiverFishes -- Effect of dams on -- Columbia RiverFishery management -- Columbia RiverDate1985CollectionBonneville Power Administration Last edited by: Angie Jannelli

LanguageengFormonline resourceExtent67 pagesType of ResourcetextIssuancemonographicSummarySurvival of steelhead trout (Salmo gairdneri) from Wells Hatchery (WDG) was studied in 1984 to derive an index of steelhead survival in the mid-Columbia. This index was determined as part of the Smolt Monitoring Program conducted by the fishery agencies and tribes through the Water Budget Center. The program in 1984 was limited because of fish availability. A major goal of the 1984 program was to adapt techniques which have largely been used for specific research purposes, to a management program that is to be repeated annually. Such a program requires that minimum disruption of the existing fishery management program occurs. Sufficient fish were allocated to the program to allow two replicate test releases from Pateros, Washington and two paired control releases below Priest Rapids Dam. These mark groups were recovered at McNary Dam, and survival was calculated as the ratio in proportion recovered for the test and control groups. Data from the second replicate release was judged to not sufficiently meet the experimental criteria and was rejected. The first replicate was judged to be suitable, and survival was calculated. Estimated survival for the first steelhead replicate from Pateros to below Priest Rapids Dam was 0.5181 with a lower 95% confidence interval of 0.4626 and an upper confidence interval of 0.5736NoteWillis E. McConnaha, Larry R. BashamPublished through the Information Bridge: DOE Scientific and Technical Information"April 29, 1985.""Doe/bp-11797-1.""DE86011443."Includes bibliographical references (page 40)1984BP117971980-001-00

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Other FormatPrint version: McConnaha, Willis E Survival of Wells Hatchery steelhead in the mid-Columbia River, 1984. Part 1, 1984 smolt monitoring program annual report Portland, Or. : US Dept. of Energy, Bonneville Power Administration, Division of Fish & Wildlife : Water Budget Center, [1985] (OCoLC)41765495Library ClassificationE 1.99:doe/bp-11797-1OCLC Number727280303Restrictions on Accesshttp://rightsstatements.org/vocab/NoC-US/1.0

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