Also known as Black Jack, Crevally Jack, False Jack, Horse-eye, Horse-eye Crevalle, Horse-eye Trevally, Jackfish, Trevally, Yellowjack.
Found in schools, over off-shore reefs. Can be attracted by divers bubbles!
They feed on crustaceans, small fish, and invertebrates.
Juveniles found over mud and sandy bottoms, of shorelines.
Length - 100cm
Depth - 0-20m
Widespread Eastern Atlantic, Western Atlantic, Caribbean
Jacks are fast swimming fish that can roam over great distances. The larger fish hunt other fish and the smaller fish eat zooplankton. In turn they are hunted by large Tuna and Dolphins. Ref: https://www.fishbase.se/summary/1935