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link to AFSC home page link to NMFS home page link to NOAA home page see caption
Figure 2 . Acoustic backscattering (SA) attributed primarily to walleye pollock (vertical lines) along transects during the March 2010 acoustic-trawl surveys of Marmot Bay, Shelikof Strait and the Gulf of Alaska shelf break from Barnabus Trough to Chirikof Island. 

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