| Gulf of Alaska Acoustic-Trawl Surveys of Walleye Pollock (DY1002, EK60) |
| The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National
Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted
acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during the
late winter/early spring of 2010 to estimate the distribution and abundance of walleye
pollock (Theragra chalcogramma). The vessel departed Kodiak, Alaska on 18 March and
conducted a survey along the central Gulf of Alaska shelf east of Chirikof Island
18-19 March. The vessel conducted fisheries research operations on Snakehead shelf
19-22 March. The vessel then surveyed Shelikof Strait 22-28 March and returned to
Kodiak, Alaska on 30 March following a post-cruise EK60 echosounder system calibration
29-30 March. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern
trawler equipped with acoustic and oceanographic instrumentation. |
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