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subgenus Thunnus ( Thunnus): bluefin group.genus Thunnus: albacores and true tunas.The Thunnini tribe is a monophyletic clade comprising 15 species in five genera:
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The immediate source for "tuna" in English is Spanish atún < Andalusian Arabic at-tūn, assimilated from al-tūn التون : 'tuna fish' < Greco-Latin thunnus mentioned above. The term "tuna" ultimately derives from Thunnus, the Middle Latin form of the Ancient Greek: θύννος, romanized: (thýnnos), lit.'tunny-fish' – which is, in turn, derived from θύνω ( thýnō), "rush, dart along". As a result of overfishing, some tuna species, such as the southern bluefin tuna, are threatened with extinction. Found in warm seas, it is extensively fished commercially, and is popular as a game fish. Greatly inflated speeds can be found in early scientific reports and still widely reported in the popular literature. An active and agile predator, the tuna has a sleek, streamlined body, and is among the fastest-swimming pelagic fish – the yellowfin tuna, for example, is capable of speeds of up to 75 km/h (47 mph). Tuna, opah, and mackerel sharks are the only species of fish that can maintain a body temperature higher than that of the surrounding water. The Atlantic bluefin averages 2 m (6.6 ft), and is believed to live up to 50 years.
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length: 50 cm (1.6 ft), weight: 1.8 kg (4 lb)) up to the Atlantic bluefin tuna (max. The Thunnini comprise 15 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna (max. Tunas (from top): albacore, Atlantic bluefin, skipjack, yellowfin, bigeyeĪ tuna is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family.