Thunnus alalunga

The most highly prized and scarce kind of tuna. It has a scaly, oval-shaped body, with a distinctive dark blue back and whitish belly. It is easy to recognize thanks to its central fin, which is longer, measuring more than two-thirds of the length of the fish. The average size is around 75 cm (29.5 inches) and weighs around 10 kilograms (22 pounds). It is a migratory species. Due to the delicate color of its flesh, it is sold under the name WHITE TUNA. It is also known as ALBACORE or LONGFIN TUNA (Thunnus alalunga).

This kind of tuna is pole caught in the Cantabrian Sea during July and August so it can be caught when it has the best fat content and texture.

The meat on its belly, called ventresca, is especially valued due to its delicate taste and texture.