Juvenile Albacore Tuna (Thunnus alalunga) Foraging Ecology Varies With Environmental Conditions in the California Current Large Marine Ecosystem.

Catherine F. NickelsElan J. PortnerOwyn SnodgrassBarbara MuhlingHeidi DewarNOAA Fisheries - Southwest Fisheries Science CenterScripps Institution of Oceanography - University of California San Diego
Written By Michele Amar

Contributors: Catherine F. Nickels, Elan J. Portner, Owyn Snodgrass, Barbara Muhling, Heidi Dewar

Organizations: NOAA Fisheries, Southwest Fisheries Science Center • Scripps Institution of Oceanography, University of California San Diego

Summary: Characterizing changes in albacore diet with changing environmental conditions is key to understanding variability in albacore abundance, distribution and availability to recreational and commercial fisheries. ARF has been keenly interested in changes in albacore foraging characteristics and has actively supported diet studies through the collection of stomach contents and associated data necessary to carry out these studies.

*Juvenile North Pacific Albacore refer to fish of 1 to 5 years of age that have entered the surface fishery but have not yet returned to the western Pacific to spawn. These are the fish that are sustainably harvested by ARF member vessels using troll gear.

Michele Amar
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Migration and Behavior of Juvenile North Pacific Albacore (Thunnus alalunga)
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Risk and Reward in Foraging Migrations of North Pacific Albacore Determined From Estimates of Energy Intake and Movement Costs