Figure 4. Estimated walleye pollock biomass in metric tons (t) (vertical lines) along transects during the March 2008 acoustic-trawl surveys of the Shelikof Strait area.
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Figure 4. Estimated walleye pollock biomass in metric tons (t) (vertical lines) along transects during the March 2008 acoustic-trawl surveys of the Shelikof Strait area. |