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.
Max Size: 75 cm
Sea Temperature Range: 17.4-31.2°C
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
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