Plectropomus oligacanthus

Highfin coral grouper | Blue-lined Coral Trout | Blue-lined Coralgrouper | Vermicular Coralgrouper | Vermiculate Coral Trout
Plectropomus oligacanthus
Plectropomus oligacanthus, Scott Reef, Western Australia, Photo: Rick Stuart-Smith


Tropical Indo-Pacific


Grey body, head with numerous blue stripes, sides with short vertical blue lines that contract into spots on tail, red eye. Length to 108 cm.


Max Size: 75 cm

Sea Temperature Range: 26.7-31.3°C

Depth: 5-147m

Habitat Generalization Index: N/A

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: Near Threatened

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: Solitary (1 per transect)

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

Edit by: Joe Shields