Analysis of Historic Data for Juvenile and Adult Salmonid Production. Phase 1, Final Report [electronic resource].
Published
Portland, Ore : United States. Bonneville Power Administration, 1993. Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Survival of hatchery reared Columbia River chinook (Oncorhynchus tshawytscha) salmon from release to return is highly variable and thought to be related to river flow during juvenile outmigration in the spring. The purpose of this project is to examine the relationship between survival of coded-wire-tagged (CWT) Columbia River salmonids and in-river flow and other freshwater factors. This report covers Phase 1, in which two methods to estimate survival were developed and evaluated, and criteria for data selection were established.