This silver to gold species is the largest of the trevally fishes, and may grow up to 5.7 feet (1.7 m) in length and can weigh well over 100 pounds (45 kg). It is native to the Indo-Pacific, feeding on a variety of crustaceans, mostly by night. Adults are typically found solitary on reefs, but juveniles will gather in schools in shallow inshore environments.
  • Size

    5.7 feet (1.7 m)
  • Diet

    Feeds nocturnally on crustaceans, such as crabs and spiny lobsters, and fish
  • Range

    Indo-Pacific along east coast of Africa, Japan, and south to northern Australia
  • Habitat

    Coastal waters, commonly near bays and estuaries

Physical Characteristics


  • Largest trevally, usually reaching 5.7 feet (1.7 m) in length and about 132 lbs. (60 kg). The maximum published weight is 176 lbs. (80.0 kg).

Body Composition

  • Has a steep forehead.


  • Head and body are dusky golden dorsally and silver ventrally. Fins are gray to black.


Animal Fact

The giant trevally and other trevally are all members of the jack family.

Diet / Feeding

  • Feeds nocturnally on crustaceans, such as crabs and spiny lobsters, and fish.

Range / Habitat


  • Occurs in the Indo-Pacific in the Red Sea, along the east coast of Africa to the Hawaiian and Marquesan islands, north to southern Japan and the Ogasawara Islands, and south to northern Australia.


  • Adults are solitary in clear lagoon and seaward reefs.
  • Found at depths between 33 to 328 feet (10 -100 m).
  • The juvenile of this species is found in small schools over sandy inshore bottoms or estuaries.

Reproduction & Growth

  • Spawns on shallow seaward reefs and offshore banks.

Conservation Status

  • “Not Evaluated” on the IUCN Red List.

Additional Information

  • Large individuals may be ciguatoxic, meaning the flesh is poisonous to people.
  • Member of the jack family, Carangidae.


  • Micronesian Reef Fishes. Myers, R. F., pg. 138
  • Coral Reef Fishes. Lieske, E. and Myers, R., pgs. 41 – 42
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