how many different types of tuna are there
Tuna A tuna is a saltwater fish that belongs to the tribe Thunnini, a sub-grouping of the mackerel family (Scombridae). Thunnini comprises fifteen species across five genera,[1] the sizes of which vary greatly, ranging from the bullet tuna (max. length: 50 cm (1.6 ft), weight: 1.8 kg (4 lb)) up to the Atlantic bluefin tuna (max. length: 4.6 m (15 ft), weight: 684 kg (1,508 lb)). The bluefin averages 2 m (6.6 ft), and is believed to live for up to 50 years. When canned and packaged for sale, the product is sometimes called tuna fish.
Shark fin soup Traditional shark fin soup or stew is made with fins obtained from a variety of shark species. Raw fins are processed by first removing the skin and denticles, then trimming them to shape and bleaching to a more-desirable colour.[3]