Scientific Name
Caranx sexfasciatus

Common Name
Bigeye trevally

Biology
Inhabit coastal and oceanic waters associated with reefs (Ref. 9283, 58302). Occasionally enter rivers (Ref. 9283). Pelagic at 1-96 m (Ref. 58302). Adults are found in coral reefs and are mostly active at night or during twilight periods. During the day they are usually seen milling in stationary aggregations (Ref. 44894). Juveniles may be encountered in estuaries (Ref. 9283, 44894), occasionally entering rivers and penetrating well inland (Ref. 2847, 44894). Form slow-moving schools in the passes or outside the reef during the day, dispersing at night feed (Ref. 4795). Feed mainly on fishes and crustaceans (Ref. 9283). Marketed fresh, dried or salted (Ref. 9283) and frozen (Ref. 9987). Consumed broiled and baked (Ref. 9987).

Classification

Classified By

Quoy & Gaimard, 1825

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Jacks and pompanos (Carangidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: Red Sea and East Africa to Hawaii, north to southern Japan and the Ogasawara Islands, south to Australia and New Caledonia. Eastern Pacific: southwestern coast of Baja California Sur, Mexico and the Gulf of California to Ecuador and the Galapagos Islands (Ref. 9283).

Range

30°N - 36°S, 20°E - 53°W

Environment

Climate

Tropical

Water Temperature From

26 °C

Water Temperature To

29 °C

Depth From - meters

0 m

Depth To - meters

146 m

Zone

reef-associated

Environment

Marine; freshwater; brackish; reef-associated; amphidromous; depth range 0 - 146 m (Ref. 57178)

Trophic Level

4.5 s.e. 0.80 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

120 cm

Common Length

60.0 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; gamefish: yes

Vulnerability

Moderate to high vulnerability (45 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.24)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)