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Pathogen Screening of Naturally Produced Yakima River Spring Chinook Smolts. Annual Report, 2001.

DE2004833339

Publication Date	2003
Personal Author	Thomas, J. B.; Pearsons, T. N.
Page Count	16
Abstract	The change in pathogens prevalence to wild fish is probably the least studied ecological interaction associated with hatchery operations. In 1999, the Cle Elum Hatchery began releasing spring chinook smolts into the upper Yakima River to increase natural production. Part of the evaluation of this program is to evaluate whether introduction of hatchery produced smolts would impact the prevalence of specific pathogens in the naturally produced spring chinook smolts. Increases in prevalence of any of these pathogens could negatively impact the survival of these fish. Approximately 200 smolts were collected at the Chandler smolt collection facility on the lower Yakima River during 1998, 2000 and 2001 and monitored for specific pathogens. The pathogens monitored were infectious hematopoeitic necrosis virus, infectious pancreatic necrosis virus, viral hemorrhagic septicemia, Flavobacterium psychrophilum, Flavobacterium columnare, Aeromonas salmonicida, Yersinia ruckeri, Edwardsiella ictaluri, Renibacterium salmoninarum and Myxobolus cerebralis.
Keywords	Salmon Pathogens Hydroelectric power plants Screening Monitoring Aeromonas Production Fisheries Fluctuations Evaluation Yakima River Bacterial diseases Spores Viral diseases Water quality Watersheds Environmental impacts Washington(State) Fish diseases
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Washington Dept. of Fish and Wildlife, Olympia.; Department of Energy, Washington, DC.; Bonneville Power Administration, Portland, OR. Office of Energy
Supplemental Notes	Sponsored by Department of Energy, Washington, DC. and Bonneville Power Administration, Portland, OR. Office of Energy Resources.
Document Type	Technical Report
NTIS Issue Number	200515

Pathogen Screening of Naturally Produced Yakima River Spring Chinook Smolts. Annual Report, 2001.

Pathogen Screening of Naturally Produced Yakima River Spring Chinook Smolts. Annual Report, 2001.
DE2004833339

Publication Date	2003
Personal Author	Thomas, J. B.; Pearsons, T. N.
Page Count	16
Abstract	The change in pathogens prevalence to wild fish is probably the least studied ecological interaction associated with hatchery operations. In 1999, the Cle Elum Hatchery began releasing spring chinook smolts into the upper Yakima River to increase natural production. Part of the evaluation of this program is to evaluate whether introduction of hatchery produced smolts would impact the prevalence of specific pathogens in the naturally produced spring chinook smolts. Increases in prevalence of any of these pathogens could negatively impact the survival of these fish. Approximately 200 smolts were collected at the Chandler smolt collection facility on the lower Yakima River during 1998, 2000 and 2001 and monitored for specific pathogens. The pathogens monitored were infectious hematopoeitic necrosis virus, infectious pancreatic necrosis virus, viral hemorrhagic septicemia, Flavobacterium psychrophilum, Flavobacterium columnare, Aeromonas salmonicida, Yersinia ruckeri, Edwardsiella ictaluri, Renibacterium salmoninarum and Myxobolus cerebralis.
Keywords	Salmon Pathogens Hydroelectric power plants Screening Monitoring Aeromonas Production Fisheries Fluctuations Evaluation Yakima River Bacterial diseases Spores Viral diseases Water quality Watersheds Environmental impacts Washington(State) Fish diseases
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Washington Dept. of Fish and Wildlife, Olympia.; Department of Energy, Washington, DC.; Bonneville Power Administration, Portland, OR. Office of Energy
Supplemental Notes	Sponsored by Department of Energy, Washington, DC. and Bonneville Power Administration, Portland, OR. Office of Energy Resources.
Document Type	Technical Report
NTIS Issue Number	200515