Caranx sexfasciatus

Carangidae
Big-eye Trevally, Bigeye Jack, Bigeye Kingfish, Dusk Jack, Great Trevally, Horse-eye Jack, Sixband Trevally
  • Caranx sexfasciatus, Gulf of Carpentaria, Australia, Photo: Graham Edgar
    Caranx sexfasciatus, Gulf of Carpentaria, Australia, Photo: Graham Edgar
  • Caranx sexfasciatus, Adult, Bali, Indonesia, Photo: Ian Shaw
    Caranx sexfasciatus, Adult, Bali, Indonesia, Photo: Ian Shaw
  • Caranx sexfasciatus, Bali, Indonesia, Photo: Ian Shaw
    Caranx sexfasciatus, Bali, Indonesia, Photo: Ian Shaw
  • Caranx sexfasciatus, NSW, Australia, Photo: Rick Stuart-Smith
    Caranx sexfasciatus, NSW, Australia, Photo: Rick Stuart-Smith
Distribution
Temperate Australasia, Tropical Eastern Pacific, Tropical Indo-Pacific
Description
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.
Information
  • Max Size: 120 cm
  • Sea Temperature Range: 19.5-31.5°C
  • Depth: 0-146m
  • Habitat: Coral Reef, Open ocean
  • Habitat Generalisation 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
Rarity
  • Threats: Exploitation
  • IUCN Threat Status: Least Concern
  • Occurrence: Infrequent (4% 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
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