Freeze Brand Marking of Steelhead Trout and Chinook Salmon from Idaho for the 1986 Smolt Monitoring Program: 1986 Annual Report

摘要

Between the fall of 1985 and spring of 1986, 403,260 chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Salmo gairdneri) juveniles were freeze branded for the National Marine Fisheries Service Downstream Smolt Monitoring Program in association with the Fish Passage Center. After brand loss and mortality, branded fish releases were: 160,100 spring chinook salmon, 43,325 summer chinook salmon, 102,100 A-run steelhead trout, and 86,350 B-run steelhead trout. Freeze brand group releases began March 24 and were completed by May 7, 1986. (ERA citation 12:033874)