A test for the relative strength of maternal and stock effects in spring Chinook salmon (Oncorhynchus tshawytscha) from two different hatcheries (Study site: Warm Springs Hatchery; Stocks: Warm Springs Hatchery and Carson Hatchery; Year class: 1993): Chapter 10

By: , and 
Edited by: Stephen P. RubinReginald R. ReisenbichlerLisa A. Wetzel, and Michael C. Hayes

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Abstract

An experiment was undertaken to determine the relative strength of maternal and stock effects in Chinook salmon (Oncorhynchus tshawytscha) reared in a common environment, as a companion study to our investigation of hatchery and wild Chinook salmon. Pure-strain and reciprocal crosses were made between two hatchery stocks (Carson and Warm Springs National Fish Hatcheries). The offspring were reared together in one of the hatcheries to the smolt stage, and then were transferred to a seawater rearing facility (USGS-Marrowstone Field Station). Differences in survival, growth and disease prevalence were assessed. Fish with Carson parentage grew to greater size at the hatchery and in seawater than the pure-strain Warm Springs fish, but showed higher mortality at introduction to seawater. The analyses of maternal and stock effects were inconclusive, but the theoretical responses to different combinations of maternal and stock effects may be useful in interpreting stock comparison studies.

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Additional publication details

Publication type Report
Publication Subtype Other Government Series
Title A test for the relative strength of maternal and stock effects in spring Chinook salmon (Oncorhynchus tshawytscha) from two different hatcheries (Study site: Warm Springs Hatchery; Stocks: Warm Springs Hatchery and Carson Hatchery; Year class: 1993): Chapter 10
DOI 10.3996/022014-JFWM-013.S8
Year Published 2012
Language English
Publisher Bonneville Power Administration
Contributing office(s) Western Fisheries Research Center
Description 20 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 305
Last page 325
Country United States
State Oregon, Washington
Other Geospatial Columbia River, Warm Springs River, Wind River
Online Only (Y/N) N
Additional Online Files (Y/N) N