RT Book, Whole DB /z-wcorg/ DS http://worldcat.org ID 70289164 LA English T1 Tatlawiksuk River salmon studies, 2005 A1 Costello, Daniel J., Alaska., Division of Sport Fish., Alaska., Division of Commercial Fisheries., PB Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services PP Anchorage YR 2006 AB The Tatlawiksuk River is a tributary of the Kuskokwim River, and produces chinook salmon Oncorhynchus tshawytscha, chum salmon O. keta, and coho salmon O. kisutch that contribute to intensive subsistence and commercial salmon fisheries downstream of its confluence. The Tatlawiksuk River weir is one of several projects operated in the Kuskokwim area that form an integrated geographic array of escapement monitoring projects. Collectively, and in accordance with the State of Alaska's Policy for the Management of Sustainable Salmon Fisheries (5 AAC 39.222), this array of projects is a tool to ensure appropriate geographic and temporal distribution of spawners, and provide a means to assess trends in escapement that should be monitored and considered in harvest management decisions. Towards this end, Tatlawiksuk River weir has been operated annually since 1998 to determine daily and total salmon escapements for the target operational period of 15 June through 20 September; to estimate age, sex, and length compositions of chinook, chum, and coho salmon escapement; to monitor environmental variables that influence salmon productivity; and to provide part of an integrated platform in support of other Kuskokwim area fisheries projects. In 2005, a resistance board weir was successfully operated on the Tatlawiksuk River from 15 June through 23 September, with one inoperable period from 10 to 19 September. This report details the 2005 findings.