Carangoides orthogrammus
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, Diamond Islet, Coral Sea, Photo: Graham Edgar
Carangoides orthogrammus, Lord Howe Is, Australia, Photo: Andrew Green
Similar Species
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 Generalization Index: 4.23
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: Not Evaluated
Occurrence: Infrequent (5.5% 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