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Captively reared animals can provide an immediate demographic boost in reintroduction programs, but may also reduce the fitness of colonizing populations. Construction of a fish passage facility at Landsburg Diversion Dam on the Cedar River, WA, USA, provided a unique opportunity to explore this trade-off. We thoroughly sampled adult Chinook salmon(More)
Selection during the colonization of new habitat is critical to the process of local adaptation, but has rarely been studied. We measured the form, direction, and strength of selection on body size and date of arrival to the breeding grounds over the first three cohorts (2003-2005) of a coho salmon (Oncorhynchus kisutch) population colonizing 33 km of(More)
ii ACKNOWLEDGEMENTS We dedicate this report to the memory of Steve Foley. He was instrumental in supporting this project and without his assistance the project would not have been successful. We thank the many folks who assisted with the field work which included USFWS employees: Trout scales were analyzed at the WDFW aging lab under the direction of Lee(More)
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