Bonito del Norte
Bonito del Norte is a type of white tuna (Thunnus alalunga) which is also known as albacora. It is a species of tuna which is found in tropical and temperate waters. Bonito del Norte is the name given to the fish of the species which is caught in the Bay of Biscay. It is not related to the fish of the mackerel family, which is called also called bonito in other parts of the world.
Bonito can weigh up to 60 kg - the difference in weight between this and normal tuna is that its pectoral fin is larger than the common tuna. It is a delicacy and is commercially, but humanely fished and is of excellent quality.
In winter, the fish inhabits the waters in the area surrounding the Azores in the Atlantic, but by the end of spring (May-June) migrates to the Bay of Biscay and from thence they are sought out by the fishermen of Galicia, Asturias, Cantabria, País Vasco and France, until they move south again around the month of September.