Species Worldwide: 140 (33 genera)
Species In Hawaii: 24
Endemic species in Hawaii: xxx
These fish are fast swimming predators of open marine waters. Although possible, the carangids are rarely seen going into brakish waters. They often feed on smaller fish or zooplankton found on or around coral reefs. When they feed, jakcs have been seen cornering smaller baitfish and hunting so voraciously that it looks like the water surface is boiling. Carangids are often silvery in colour and may reach a weight of more than 30 kg (close to 70 lbs). The jacks are fished commercially but are especially popular as a sport fish.