Figure 3. Estimated walleye pollock biomass in metric tons (t) (vertical lines) along transects during the February 2008 acoustic-trawl surveys of the Shumagin Islands and Sanak Trough in the Gulf of Alaska.
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Figure 3. Estimated walleye pollock biomass in metric tons (t) (vertical lines) along transects during the February 2008 acoustic-trawl surveys of the Shumagin Islands and Sanak Trough in the Gulf of Alaska. |