Optimal production of chinook salmon from the Taku River / Scott A. MacPherson, David R. Bernard and John H. Clark. : Fs70-1/1999-207E-PDF

Optimal production of adult chinook salmon Oncorhynchus tshawytscha from the Taku River was investigated with information from a stock assessment program (1973-1997) and catch sampling programs of the Canadian inriver gillnet fishery, U.S. gillnet fishery in Taku Inlet, the U.S. commercial troll and the U.S. recreational fishery near Juneau. Stock assessment was based on aerial surveys and mark-recapture experiments to estimate abundance of large (mostly age-1.3 and older fish) salmon over the spawning grounds. It is recommend that the Alaska Department of Fish and Game and the Department of Fisheries and Oceans (Canada) adopt a biological escapement goal range of 30,000 to 55,000 large spawners for management purposes for this chinook salmon stock. This corresponds to an aerial survey goal of approximately 5,800 to 10,600 large spawners, counted in five tributaries. It is also recommended that there be a continuation or implementation of several stock assessment components to improve estimation of population statistics and management of this stock.

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