Atlantic white (bonito) and yellowfin tuna fished from July to October by rod and line, off the coast of Spain in the Bay of Biscay. The flavor of the tuna is locked in by cooking and storing the exquisite fish in olive oil. The Bonito del Norte is the Oritz standard for excellent quality. For the true tuna lover, the Ventresca is the prime choice. From the fattest part of the center loin, this tuna is truly luxurious.