“October 1, 1977 to September 30, 1978.” “Annual and Completion Report.” (front cover) "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 1978 included the sampling and analysis of catch statistics, chinook age composition, mark recovery data, and coded wire tag data. Short term work was conducted to study chinook maturity, to evaluate a troll season extension for chinook salmon off southern Oregon, and to obtain random coho scales for a Research Section scale study to separate hatchery and wild coho." (Introduction)

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