Bigeye tuna (Thunnus obesus)

One of the main tuna species found in warm temperate waters of the Atlantic (but not in the Mediterranean), Pacific and Indian Oceans, with lengths ranging 40–180 cm. Its geographical distribution covers from 55–60°N and 45–50°S. Juveniles are seen in the equatorial region while adults are found at higher latitudes. Bigeye tuna can form either free schools or be associated with floating objects; juvenile bigeye can form schools with juvenile yellowfin and skipjack tunas.

See also Tropical tuna species.

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