JACKS
CARANGIDAE
Crevalle Jack
Caranx hippos
    Ecological Descriptors
Habitat Size (cm) Diet Behaviour Sex 
Pel (Co, R, S, M, Man, Br) 60 (but to 1m) Pisc (Cru) Sh F
 
 
Description:
Adults: Body dark blue to bluish-grey above, silvery white to golden below. Rear lateral line scutes  dark to black. Tail usually yellow.
Dark spot on the corner of the operculum, and a dark smudge on the lower side of sickle-shaped pectoral fin:
Juveniles: Have ~5 dark bars on body


Ecology
Common on shallow flats, but large fish may occur offshore to depths of 350 m. It occurs in moderate to large schools, often found in brackish water. Preys  primarily on other fishes, but also shrimps and other invertebrates.

Life Cycle:
Matures at ~ 5 years. . It forms spawning aggregations off Belize with a behaviour display similar to C. latus / Horse Eye Jackwith subgroups of 15-20 fish swimming away from a larger school of 150-700 individuals. However, for C. hippos, fish in the aggregation assume courtship colouration with fish courting as pairs
Crevalle Jack
Crevalle Jack
Crevalle Jack Juvenile
(C) Robertson & Van Tassell
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