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The Atlantic bluefin tuna (Thunnus thynnus) is a species of tuna in the family Scombridae. It is variously known as the northern bluefin tuna (mainly when including Pacific bluefin as a subspecies), giant bluefin tuna (for individuals exceeding 150 kg [330 lb]), and formerly as the tunny. Atlantic bluefins are native to both the western and ...
The Pacific bluefin tuna is primarily found in the North Pacific, ranging from the East Asian coast to the western coast of North America. [3][6] It is mainly a pelagic species found in temperate oceans, but it also ranges into the tropics and more coastal regions. [3] It typically occurs from the surface to 200 m (660 ft), [6] but has been ...
A tuna (pl.: tunas or tuna) is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae family.The Thunnini comprise 15 species across five genera, [2] the sizes of which vary greatly, ranging from the bullet tuna (max length: 50 cm or 1.6 ft, weight: 1.8 kg or 4 lb) up to the Atlantic bluefin tuna (max length: 4.6 m or 15 ft, weight: 684 kg or 1,508 lb), which ...
The southern bluefin tuna is a predatory organism with a high metabolic need. These are pelagic animals, but migrate vertically through the water column, up to 2,500 m (8,200 ft) in depth. They also migrate between tropical and cool temperate waters in the search for food. [4] The seasonal migrations are between waters off the coast of ...
Thunnus is a genus of ocean-dwelling, ray-finned bony fish from the mackerel family, Scombridae. More specifically, Thunnus is one of five genera which make up the tribe Thunnini – a tribe that is collectively known as the tunas. Also called the true tunas or real tunas, Thunnus consists of eight species of tuna (more than half of the overall ...
Close-up of fish melanophores. Fish coloration is produced through specialized cells called chromatophores. The dermal chromatophore is a basic color unit in amphibians, reptiles, and fish which has three cell layers: "the xanthophore (contains carotenoid and pteridine pigments), the iridophore (reflects color structurally), and the melanophore (contains melanin)". [5]
Tuna and tuna-like fishes are highly migratory, and stocks cross numerous international boundaries.ICCAT is involved in management of 30 species, including the Atlantic bluefin (Thunnus thynnus thynnus), yellowfin (T. albacares), albacore (T. alalunga) and bigeye tuna (T. obesus); from the billfishes, swordfish (Xiphias gladius), white marlin (Tetrapturus albidus), blue marlin (Makaira ...
Bluefin tuna is a common name used to refer to several species of tuna of the genus Thunnus. Formerly known as northern bluefin tuna. Formerly known as northern bluefin tuna. Known as the northern bluefin tuna in Australia, as it is found off their northern coast.
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