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AFSC/RACE/MACE: Results of 2010 Acoustic-trawl survey of the Shumagin Islands, Sanak
Trough, Kenai Peninsula bays and Prince-william sound dy1001
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Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program
of the Alaska Fisheries Science Center's (AFSC) Resource Assessment and Conservation
Engineering (RACE) Division routinely conduct acoustic-trawl (AT) stock assessment
surveys in the Gulf of Alaska (GOA) during late winter and early spring to estimate
the distribution and abundance of walleye pollock (Theragra chalcogramma). Historically,
most of these efforts have been focused on the Shelikof Strait area, which has been
surveyed annually since 1980, except in 1982 and 1999. The Shumagin Islands area
has also been surveyed annually since 2005 with prior surveys in 1994-1996 and 2001-2003.
Additionally, the GOA continental shelf break east of Chirikof Island to Barnabas
Trough has been surveyed annually since 2002. In 2010, survey activities were expanded
to include Morzhovoi Bay, Pavlof Bay, the bays along the southern coast of the Kenai
Peninsula, and Prince William Sound. This report presents the distribution and abundance
of walleye pollock for all AT surveys conducted in the GOA during February and March
2010 along with acoustic system calibration and physical oceanographic results.
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