A voracious predator, it feeds primarily on smaller fishes, which it often chases onto beaches or against seawalls. In open water, jacks will herd bait fish into a tight mass, then rush in from all sides. The crevalle jack also feeds on shrimp and other invertebrates and on garbage dumped from boats.This superb light tackle species can be taken by spinning, fly fishing, trolling, or surfcasting. Lures should be retrieved at a fast pace without pausing or stopping as jacks tend to lose interest in anything that doesnt act normally. The following are fishing methods used to catch this fish:
There is rounded black spot at the lower base of the pectoral fin of the crevalle jack that is found in no other jacks in the area. There is also a distinct, vertically elongate black spot on the operculum. Enlarged scales or scutes, numbering about 30, extend in a line to the base of the tail fin. The similar horse-eye jack has no pectoral fin spot and 26-35 scutes.