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NOAA Photo Library Image - fish7975

A tracing made by an echo sounder shows concentrations of Pacific ocean perch on the sea floor, as well as the otter trawl of another vessel sweeping over the bottom toward the fish.

Image ID: fish7975, NOAA's Historic Fisheries Collection
Location: Eastern Pacific Ocean
Credit: NOAA Central Library Historical Fisheries Collection; P. 420 of "Our Changing Fisheries" 1970 Centenary NMFS centenary volume

High Resolution Photo Available

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Last Updated:
November 10, 2017