What (who) is tuna - definition
![[[Bigeye tuna]] ''Thunnus obesus'' showing finlets and keels. Finlets are found between the last dorsal and/or anal fin and the caudal fin. They are rayless and non-retractable.<br/>Drawing by Dr Tony Ayling.](https://commons.wikimedia.org/wiki/Special:FilePath/Thunnus obesus (Bigeye tuna) diagram cropped.GIF?width=200 "[[Bigeye tuna]] ''Thunnus obesus'' showing finlets and keels. Finlets are found between the last dorsal and/or anal fin and the caudal fin. They are rayless and non-retractable.<br/>Drawing by Dr Tony Ayling.")
![Tuna at [[Tsukiji fish market]], Tokyo](https://commons.wikimedia.org/wiki/Special:FilePath/Tsukiji Fish market and Tuna edit.jpg?width=200 "Tuna at [[Tsukiji fish market]], Tokyo")
![[[Sushi]]}}](https://commons.wikimedia.org/wiki/Special:FilePath/Tuna_Sushi.jpg?width=200 "[[Sushi]]}}")
![[[Tuna salad]]}}](https://commons.wikimedia.org/wiki/Special:FilePath/Tuna salad 001.jpg?width=200 "[[Tuna salad]]}}")
![Tuna steak served in a French [[bistro]]}}](https://commons.wikimedia.org/wiki/Special:FilePath/tuna steak.JPG?width=200 "Tuna steak served in a French [[bistro]]}}")
![[[Tekkadon]]}}](https://commons.wikimedia.org/wiki/Special:FilePath/Tekkadon_001.jpg?width=200 "[[Tekkadon]]}}")
![[[Katsuobushi]] shavings}}](https://commons.wikimedia.org/wiki/Special:FilePath/Katsuobushi 02.jpg?width=200 "[[Katsuobushi]] shavings}}")
![[[Mojama]]}}](https://commons.wikimedia.org/wiki/Special:FilePath/Mojama de atun.JPG?width=200 "[[Mojama]]}}")
yo, you see that lowrider - that baby's Tuna!
Wikipedia
A tuna is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 15 species across five genera, 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 averages 2 m (6.6 ft) and is believed to live up to 50 years.
Tuna, opah and mackerel sharks are the only species of fish that can maintain a body temperature higher than that of the surrounding water. An active and agile predator, the tuna has a sleek, streamlined body, and is among the fastest-swimming pelagic fish – the yellowfin tuna, for example, is capable of speeds of up to 75 km/h (47 mph). Greatly inflated speeds can be found in early scientific reports and are still widely reported in the popular literature.
Found in warm seas, the tuna is commercially fished extensively as a food fish, and is popular as a bluewater game fish. As a result of overfishing, some tuna species, such as the southern bluefin tuna, are threatened with extinction.
