Bluefin tuna may mean any of several species of tuna:
Bluefin tuna are some of the most beautiful and endangered fish in the world’s oceans. Tuna, are several Species of ocean-dwelling Fish in the family Scombridae, mostly in the genus Thunnus. northern bluefin tuna ( Thunnus thynnus) or giant bluefin tuna, is a species of Tuna native to both the western and eastern Atlantic The southern bluefin tuna, Thunnus maccoyii, is a Tuna of the family Scombridae found in open Southern hemisphere waters of all the Pacific bluefin tuna, Thunnus orientalis are some of the biggest and fastest fish in the Pacific Ocean. In U. S. ocean territory, the catch of bluefin tuna has declined by 99% since 1963. Bluefin tuna were just one of 41 U. S. fish stocks experiencing overfishing at the end of 2007. The National Marine Fisheries Service (NMFS) is creating new rules for overfishing and environmental review.