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Southern bluefin tuna (Thunnus maccoyii)
Previously considered a subspecies of the Pacific bluefin or Atlantic bluefin, the Southern bluefin tuna also reaches large sizes, and adults are commonly found at around 180 cm in length. Southern bluefin occurs throughout the Atlantic, Pacific, and Indian Oceans, in temperate and cold seas, mainly between 30°S and 50°S, to nearly 60°S. This species is highly migratory and travels long distances, tending to school by size.
See also Temperate tuna species.