albacore Thunnus alalunga, one of the most prized members of the tuna family. Its long pectoral fins distinguish it from its relations and account for its alternative common name, longfin tuna, and the specific name alalunga. Maximum length: 125 cm (nearly 4'). Colour: dark blue on the back, lighter below, like other tuna.
The albacore is a fish of the seven seas, but is most abundant in the open waters of the Indo-Pacific, and in the Atlantic. The world catch fluctuates around 200 MT, roughly twice as great as that of the bluefin tuna, but far less than that of the yellowfin tuna. Its relative importance is greater in the Atlantic area, but it is not a common fish in the Mediterranean.