Jacks, Amberjacks, PompanosCarangidae

Jacks, Amberjacks, and Pompanos (family Carangidae) are common, swift, predatory fishes typically encountered over reef flats, slopes, and in open water. Their bodies vary from moderately compressed to deep, often with a silvery, grey, or brassy colouration. Most species have two dorsal fins, the first with short spines, and a deeply forked caudal fin. A prominent lateral line, frequently armed with a row of bony scutes near the tail, is a key distinguishing feature of the family. Sizes range from smaller species reaching 20 cm (8 in) to large trevallies that can exceed 170 cm (67 in). Juveniles often display vertical bars on their sides, while some adults bear dark spots.

These active predators inhabit depths from the surface down to over 100 metres (330 ft), with most species observed in shallower reef environments. They feed on smaller fishes, crustaceans, and cephalopods, often using bursts of speed to pursue prey. Younger individuals typically form large schools, which offers both protection and facilitates cooperative foraging. As they mature, larger adults often become solitary or hunt in small, agile groups. The family name Carangidae derives from Caranx, a genus named after a French Creole word for certain fish.