The albacore, Thunnus alalunga, is a type of tuna in the family Scombridae. Spanish name: Bonito del Norte. Lengths range up to 140 cm (4.5 feet) and weights up to 45 kg (99 lb).
It is a prized food, and the fishery is economically significant. Methods of fishing include pole and line, long-line fishing, trolling, and some purse seining. It is also sought after by sport fishers.
The pectoral fins of the albacore are very long, as much as 50% of the total length. The dorsal spines are 8 to 10 in number, and well forward of the rays of the dorsal fin. The anterior spines are much longer, giving a concave outline to the spiny part of the dorsal fin.