Carangoides orthogrammus

Carangidae
Thicklip Trevally, Blue Trevally, False Bluefin Trevally, Island Trevally, Socorro Jack, Yellowspoted Trevally, Yellowspotted Jack
  • Carangoides orthogrammus, Photo: Rick Stuart-Smith
    Carangoides orthogrammus, Photo: Rick Stuart-Smith
  • Carangoides orthogrammus, Photo: Rick Stuart-Smith
    Carangoides orthogrammus, Photo: Rick Stuart-Smith
  • Carangoides orthogrammus, Diamond Islet, Coral Sea, Photo: Graham Edgar
    Carangoides orthogrammus, Diamond Islet, Coral Sea, Photo: Graham Edgar
  • Carangoides orthogrammus, Lord Howe Is, Australia, Photo: Andrew Green
    Carangoides orthogrammus, Lord Howe Is, Australia, Photo: Andrew Green
Distribution
Temperate Australasia, Tropical Eastern Pacific, Tropical Indo-Pacific
Description
Pale blue/silver body with scattered yellow or brown spots on side and blue fins and tail. Caranx melampygus (Bluefin Trevally) has many smaller spots and a long, dark row of scutes at the rear of the lateral line. C. oblongus (Coachwhip Trevally) has similar shape, but lacks blue fins and has white-edged yellow lower tail lobe.
Information
  • Max Size: 75 cm
  • Sea Temperature Range: 17.4-31.2°C
  • Depth: 3-168m
  • Habitat: Coral Reef, Open ocean, Rocky Reef, Soft sediment
  • Habitat Generalisation Index: 4.2
    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: Not Evaluated
  • Occurrence: Infrequent (6% 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: Few (3 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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