The yellowfin tuna “Thunnus albacares”, or light tuna is a type of tuna found in the open waters of tropical and subtropical seas around the world, although absent from the Mediterranean. It is an epipelagic fish that lives in the first 100 meters of the water column. This fish with a hydrodynamic body is gray or blue color with a yellow or silver belly and “adorned” with 20 vertical lines. The characteristic that gives him this name is the coloration of the edge of the anal fins, the dorsal fin and the fins, since they are a bright yellow hue. His size can reach 239 cm in length and 200 kg in weight. Yellowfin tuna has become an effective substitute for fin tuna, whose populations have been severely reduced.