JACKS
CARANGIDAE
Yellow Jack
Carangoides bartholomaei
    Ecological Descriptors
Habitat Size (cm) Diet Behaviour Sex 
Dem, Co, R usu 50(to 100) Pisc Sh, I F
 
 
Description:
Adults:  Pale yellow-green-blue dorsally, becoming silver on the underside, often with a yellow cast.
Tail yellow. One of the major identification features is that the upper jaw does not extend  to the inferior margin of the eye.
Juvenile: With a dark, almost vertical, bar through eye to mouth.


Ecology
A reef-associated species occurring over continental shelves and slopes in depths between 5-70 m. It usually occurs as a solitary species or in small groups, often around outer reefs (it is not common inshore). Adults feed primarily on bottom-dwelling fishes.

Life Cycle:
It reaches sexual maturity at 30 cm fork length (FL) in males and 32 cm FL in females. It exhibits group spawning behaviour closely resembling that of Permit. Schooling densely at ~40-45 m and subgroups of 5 to 8 fish then detach themselves from the school to spawn.
Yellow Jack
Yellow Jack Juvenile
(C) JE Randall
Yellow Jack
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