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NOAA Photo Library Image - fish5610

Artist's concept of "backing down," a maneuver which shifts the weight, causing the back end of a tuna purse seine (net) to sink beneath the surface allowing porpoise that may be in the net to swim out over the top, while the tuna remain inside.

Image ID: fish5610, NOAA's Historic Fisheries Collection
Credit: NOAA Central Library Historical Fisheries Collection

High Resolution Photo Available

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Last Updated:
November 10, 2017