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The Atlantic bluefin tuna is a close relative of one of the other two bluefin tuna species, the Pacific bluefin tuna. The southern bluefin tuna , on the other hand, is more closely related to other tuna species such as yellowfin tuna and bigeye tuna , and the similarities between the southern and northern species are due to convergent evolution.
Thunnus (Thunnus) is a paraphyletic subgenus of ray-finned bony fishes in the Thunnini, or tuna, tribe.More specifically, Thunnus (Thunnus) is a subgenus of the genus Thunnus, also known as the "true tunas".
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Thunnus tonggol is a species of tuna of tropical Indo-West Pacific waters.. It is commonly known as the longtail tuna [1] or northern bluefin tuna. [4] [5] The usage of the latter name, mainly in Australia to distinguish it from the southern bluefin tuna, leads to easy confusion with Thunnus thynnus of the Atlantic and Thunnus orientalis of the North Pacific.
Southern bluefin tuna: found in southern hemisphere waters of all the world's oceans: T. orientalis: Pacific bluefin tuna: found widely in the northern Pacific Ocean and locally in the south: Formerly known as northern bluefin tuna. T. thynnus: Atlantic bluefin tuna: found in both the western and eastern Atlantic Ocean, and also in the ...
The southern bluefin tuna (Thunnus maccoyii) is a tuna of the family Scombridae found in open southern Hemisphere waters of all the world's oceans mainly between 30°S and 50°S, to nearly 60°S. At up to 2.5 metres (8 ft 2 in) and weighing up to 260 kilograms (570 lb), it is among the larger bony fishes .
Print/export Download as PDF; Printable version; In other projects ... Several fish species are known as northern bluefin tuna, including: Atlantic bluefin tuna ...
The site features information, photos, blog posts and multimedia stories about the bluefin tuna. Pew Charitable Trusts, new data (1/2013) shows that the population of Pacific bluefin is a small fraction of what it used to be, and is in danger of all but disappearing, – actually the Pacific Bluefin Tuna Population is down over 96%