Reproductive Ecology of Yakima River Hatchery and Wild Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation Report 3 of 7, 2003-2004 Annual Report.
- Oncorh Consulting, Olympia, WA
This is the third in a series of annual reports that address reproductive ecological research and comparisons of hatchery and wild origin spring chinook in the Yakima River basin. Data have been collected prior to supplementation to characterize the baseline reproductive ecology, demographics and phenotypic traits of the unsupplemented upper Yakima population, however this report focuses on data collected on hatchery and wild spring chinook returning in 2003; the third year of hatchery adult returns. This report is organized into three chapters, with a general introduction preceding the first chapter and summarizes data collected between April 1, 2003 and March 31, 2004 in the Yakima basin. Summaries of each of the chapters in this report are included below. A major component of determining supplementation success in the Yakima Klickitat Fishery Project's spring chinook (Oncorhynchus tshawytscha) program is an increase in natural production. Within this context, comparing upper Yakima River hatchery and wild origin fish across traits such as sex ratio, age composition, size-at-age, fecundity, run timing and gamete quality is important because these traits directly affect population productivity and individual fish fitness which determine a population's productivity.
- Research Organization:
- BPA (Bonneville Power Administration (BPA), Portland, OR)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- 00004666; 00013756
- OSTI ID:
- 850184
- Report Number(s):
- DOE/BP-00013756-3; R&D Project: 199506325; 199506424; TRN: US200518%%187
- Country of Publication:
- United States
- Language:
- English
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Reproductive Ecology of Yakima River Hatchery and Wild Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2004-2005 Annual Report.
Effects of Domestication on Predation Mortality and Competitive Dominance; Yakima/Klickitat Fisheries Project Monitoring and Evaluation Report 2 of 7, 2003-2004 Annual Report.