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![Frank Hester of the Tuna Research Laboratory preparing the alphameter fish9572.jpg Frank Hester of the Tuna Research Laboratory preparing the alphameter](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_fish9572.jpg?itok=pXHcNuiG)
Description
Frank Hester of the Tuna Research Laboratory preparing the alphameter. (Image credit: NOAA Central Library Historical Fisheries Collection)
Credit
NOAA Central Library Historical Fisheries Collection
Collection
Historic Fisheries