Northern white tuna in pickled sauce 200g

What is the difference between the northern white tuna and the yellowfin tuna?

The northern white tuna is part of the culinary excellence of the north of Spain, especially on the Cantabrian coast. At the end of spring, it moves towards the waters of the Gulf of Bizkaia and it is when the Costera or the white tuna campaign begins, which usually ends in October. For its part, the yellowfin Tuna, characterized by its yellow fin, lives in the open waters of tropical and subtropical seas around the world and can reach 200kg in weight.