It is the most prized and rarest of the tuna species. It has a scaly, oval-shaped body, with a dark blue back and a whitish belly. It is easily recognized by its central fin, which is longer than usual, measuring more than two-thirds of the fish’s total length. The average size is around 75 cm, with a weight of approximately 10 kg. As a migratory species, it is marketed under the names WHITE TUNA or ALBACORE (Thunnus alalunga), depending on the delicate color of its flesh and its geographic origin.