The Troll Salmon Investigation is responsible for obtaining fishery and biological data, analyzing these data, and recommending appropriate management options for the troll fishery. Proposed management options are designed to achieve the optimum use of the salmon resource on a sustained basis. Activities pursued during FY 1977 included the sampling and analysis of catch statistics, chinook age composition, mark recovery data, and coded wire tag data. We were also involved with the ocean sport sampling data processing. Short term work was conducted to study chinook maturity, to evaluate a troll season extension off southern Oregon, and to obtain salmon length frequency data. (Introduction)
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