Epinephelus rivulatus

Chinaman rockcod | Halfmoon Grouper | Halfmoon Rockcod | White-dotted Grouper | Epenephelus rivulatus
Epinephelus rivulatus
Epinephelus rivulatus, adult, Photo: Rick Stuart-Smith
Epinephelus rivulatus
Epinephelus rivulatus, juvenile, Norfolk Island, Photo: Graham Edgar
Epinephelus rivulatus
Epinephelus rivulatus, Photo: Graham Edgar
Epinephelus rivulatus
Epinephelus rivulatus, Photo: Rick Stuart-Smith
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Epinephelus rivulatus
Epinephelus rivulatus
Epinephelus rivulatus
Epinephelus rivulatus

Distribution

Temperate Australasia, Tropical Indo-Pacific


Description

Deep body with five dark bands, yellowish tips on dorsal fin, pectoral fins with black patch at base.


Information

Max Size: 39 cm

Sea Temperature Range: 18.7-31.6°C

Depth: 2-30m

Habitat Generalization Index: 6.46

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: Least Concern

Occurrence: Infrequent (6.1% 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: Few (2 per transect)

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


Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney