The species is distinguished by the following characters: a robust body, elongated and rounded; teeth small and conical, in a single series. Colour of its back is bluish, turning to deep purple or almost black on the head; a pattern of 15 or more narrow, oblique to nearly horizontal, dark wavy lines in scaleless area above lateral line; belly white; pectoral and pelvic fins purple, inner sides black.
Found in the Atlantic, Indian and Pacific (Western Central) oceans and they feed on small fish, squids, planktonic crustacean, and stomatopod larvae. They are preyed upon by larger fishes, including other tunas.
Marketed fresh and frozen and also utilized dried or salted, smoked and canned. Maturity max length 65cm. Max weight 1.7 kg. Max reported age 5 years.
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