Caranx sexfasciatus

Big-eye trevally | Bigeye Jack | Bigeye Kingfish | Dusk Jack | Great Trevally | Horse-eye Jack | Sixband Trevally
Caranx sexfasciatus
Caranx sexfasciatus, Gulf of Carpentaria, Australia, Photo: Graham Edgar
Caranx sexfasciatus
Caranx sexfasciatus, adult, Bali, Indonesia, Photo: Ian Shaw
Caranx sexfasciatus
Caranx sexfasciatus, Bali, Indonesia, Photo: Ian Shaw
Caranx sexfasciatus
Caranx sexfasciatus, NSW, Australia, Photo: Rick Stuart-Smith
1 / 4
Caranx sexfasciatus
Caranx sexfasciatus
Caranx sexfasciatus
Caranx sexfasciatus


Temperate Australasia, Tropical Eastern Pacific, Tropical Indo-Pacific


Large eye, black spot behind top corner of opercle, white-tipped dorsal and anal fin lobes, dark scutes, males often jet black when swimming paired with females. Forms large schools which circle in mid-water near jetties, bommies and isolated reefs during the day and hunt close to the reef at night.


Max Size: 120 cm

Sea Temperature Range: 19.5-31.5°C

Depth: 0-146m

Habitat Generalization Index: 8.2

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.

Conservation and Rarity

IUCN Status: Least Concern

Occurrence: Infrequent (4.1% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Many (55 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.

Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland