The Giant Trevally (Caranx ignobilis), also known as the lowly trevally, barrier trevally, giant kingfish or ulua, is a species of large marine fish classified in the jack family Carangidae. The giant trevally is distributed throughout the tropical waters of the Indo-Pacific region, with a range stretching from South Africa in the west to Hawai in the east, including Japan in the north and Australia in the south
The giant trevally is classified within the genus Caranx, one of a number of groups known as the jacks or trevallies. Caranx it self is part of the larger family Carangidae, a group of percoid fishes in the order Perciformes.
It reaches a maximum length of 170 cm for 80 kg of weight, being able to live up to 15 years.