Tunas are elongated, rather robust fishes that are streamlined and have a rounded bo.... tuna speci

Tunas are elongated, rather robust fishes that are streamlined and have a rounded body tapering to a slender tail base and a forked or crescent-shaped tail. The seven species of tunas in the genus Thunnus are the bluefin tuna ( T. The yellowfin tuna reaches a maximum weight of about 180 kg, and the albacore grows to about 36 kg. The bluefin tuna characteristically has yellow finlets and is often marked with silvery spots or bars; it is important in commercial and sport fishing, with anglers rating it among the greatest trophies obtainable. The only two species of relatively limited distribution are the blackfin tuna (western Atlantic) and the longtail tuna (Indo-Pacific region). The canned meat of albacore and yellowfin tunas is one of the world's most popular fish foods. Several other species in the family Scombridae are commonly known as tuna, among them the ( Katsuwonus, or Euthynnus, pelamis ), a fish that is found worldwide and grows to about 90 cm (3 feet) and 23 kg. tuna speci