What is "yellowfin tuna"

Tuna \Tu"na\, n. [Cf. Tunny.]

1. (Zo["o]l.) any one of several species of large oceanic fishes belonging to the mackerel family Scombridae, especially the bluefin tuna ( Thunnus thynnus, formerly Orcynus thynnus or Albacora thynnus), called also the common tunny or great tunny, a native of the Mediterranean Sea and of temperate parts of the Atlantic Ocean. It sometimes weighs a thousand pounds or more, and is caught commercially in large quantity for use as food; -- also called, especially in Britain, tunny. It is also one of the favorite fishes used by the Japanese in preparing sushi. On the American coast, especially in New England, it is sometimes called the horse mackerel. Another well-known species is the yellowfin tuna ( Thunnus albacares) of warm seas. the See Illust. of Horse mackerel, under Horse.

   Note: The little tunny ( Gymnosarda alletterata) of the Mediterranean and North Atlantic, and the long-finned tunny, or albacore ( Thunnus alalunga) (see Albacore), are related species of smaller size.

2. The bonito, 2.

3. the meat of the tuna, used as food; -- also called tuna fish.

n. (context uncountable English) An edible species of tuna, (taxlink Thunnus albacares species noshow=1), found in tropical seas.

n. may reach 400 pounds; worldwide in tropics [syn: yellowfin, Thunnus albacares]

The yellowfin tuna (Thunnus albacares) is a species of tuna found in pelagic waters of tropical and subtropical oceans worldwide.

Yellowfin is often marketed as ahi, from the Hawaiian ahi, a name also used there for the closely related bigeye tuna. The species name, albacares ("white meat") can also lead to confusion: in English, the albacore tuna (Thunnus alalunga) is a different species, while yellowfin is officially designated albacore in French and referred to as albacora by Portuguese fishermen.