Genetic differences in growth, migration, and survival between hatchery and wild steelhead and Chinook salmon: Introduction and executive summary

Edited by: Steve P. RubinReginald ReisenbichlerLisa A. Wetzel, and Michael C. Hayes

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Abstract

This report presents results of studies testing for genetically based differences in performance (growth, migration, and survival) between hatchery and wild populations of steelhead and Chinook salmon (Project Number 90-052). The report is organized into 10 chapters with a general study introduction preceding the first chapter. A growing body of data shows that domestication and a resulting loss of fitness for natural rearing occur in hatchery populations of anadromous salmonids; however, the magnitude of domestication will vary among species and hatchery programs. Better information on domestication is needed to accurately predict the consequences when hatchery and wild fish interbreed. The intent of hatchery supplementation is to increase natural production through introduction of hatchery fish into natural production areas. The goal of this study was to provide managers with information on the genetic risks of hatchery supplementation to wild populations of Columbia River Basin summer steelhead and spring Chinook salmon.

Additional publication details

Publication type Report
Publication Subtype Other Government Series
Title Genetic differences in growth, migration, and survival between hatchery and wild steelhead and Chinook salmon: Introduction and executive summary
DOI 10.3996/022014-JFWM-013.S8
Year Published 2012
Language English
Publisher Bonneville Power Administration
Contributing office(s) Western Fisheries Research Center
Description 8 p.
Larger Work Type Report
Larger Work Title Genetic differences in growth, migration, and survival between hatchery and wild steelhead and Chinook salmon: Final report. Performance period: June 1991 to December 2005
First page 5
Last page 12
Time Range Start 1991-06-01
Time Range End 2005-12-01
Online Only (Y/N) N
Additional Online Files (Y/N) N