Behavior studies are conducted from underwater observation chamber on BCF ship CHARLES H. GILBERT. Skipjack are characterized by horizontal stripes on the belly. When in a feeding frenzy, vertical bars appear and can be seen on those fish near the surface where the bait has been cast.

Image ID: fish7945, NOAA's Historic Fisheries Collection
Photo Date: 1969 circa
Photographer: Artwork by Bob Hines, BCF
Credit: NOAA Central Library Historical Fisheries Collection; P. 395 of "Our Changing Fisheries" 1970 Centenary NMFS centenary volume

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