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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".
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%
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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.
The blood of southern bluefin tuna is composed of erythrocytes, reticulocytes, ghost cells, lymphocytes, thrombocytes, eosinophilic granulocytes, neutrophilic granulocytes, and monocytes. [14] Southern bluefin tuna has a high blood hemoglobin content (13.25—17.92 g/dl) and, therefore, a high oxygen carrying capacity.
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.
A 608-pound bluefin tuna that was auctioned for 207 million Japanese yen (about about 1.3 million U.S. dollars). Sushi restaurant operator Onodera Group bought the fish at the first tuna auction ...