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Bigeye


 Fisheries and Aquaculture Department/UN FAO

Bigeye (Thunnus obesus) are found in the subtropical and tropical areas of the Atlantic (but not in the Mediterranean), Indian and Pacific Oceans. Their geographical limits range from 55-60° N and 45-50° S. Juveniles are seen in the equatorial region while adults are found at higher latitudes. Four stocks are assessed and managed by the RFMOs: Atlantic Ocean, Eastern Pacific, Western Pacific and Indian Ocean.

Bigeye can form either free schools or those associated with floating objects, while juveniles will form schools with juvenile yellowfin and skipjack tunas.