Biochemical variants detected by electrophoresis were used to identify three major groups of steelhead stocks as they passed through the southern BC commercial net fishery. In 1978-80, an average of 58% of the steelhead intercepted in this fishery were from interior fall-run stocks native to the Thompson and Chilco Rivers. The proportion of interior stocks increased as the season progressed from 33% in July to 81% in September. Coded wire tag data was used to confirm the absence of large numbers of analogous stocks from upper Columbia River tributaries.
Parkinson, Eric A.. 1984. Identification of Steelhead Stocks in the Commercial Net Fishery of the Southern British Columbia Coast. Fisheries Branch. Fisheries Management Report. FMR81
Topic: Fish and Fish Habitats
Keywords: steelhead, stocks, Thompson River, Chilco River, Columbia River, fishery, commercial
Scientific Name: Oncorhynchus mykiss
English Name: Rainbow Trout
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