Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Order:Perciformes
Family:Scombridae
Subfamily:Scombrinae
Genus:Auxis
Subspecies:A. thazard thazard
The frigate tuna or frigate mackerel, Auxis thazard thazard, is a subspecies of tuna, in the family Scombridae, found circumglobally in tropical oceans in open surface waters to depths of 50 m (164 ft). Its length is between 30 and 65 cm (12 and 26 in).

The frigate tuna is a comparatively small and slender tuna. It has a triangular first dorsal fin, widely separated from the second dorsal fin, which, like the anal and pectoral fins, is relatively small. There are the usual finlets of the tuna. There is a small corselet of small scales around the pectoral region of the body.

Frigate tunas are blue-black on the back with a pattern of zig-zag dark markings on the upper hind body, and silver-white below. The fins are dark grey.

They feed on small fish, squid, planktonic crustaceans, and stomatopod larva