Halichoeres discolor
Cocos wrasse
Halichoeres discolor, Cocos Island, Costa Rica, Photo: Graham Edgar
Halichoeres discolor, adult, Cocos Island, Costa Rica, Photo: Graham Edgar
Halichoeres discolor, adult, Cocos Island, Costa Rica, Photo: Graham Edgar
Halichoeres discolor, juvenile, Cocos Island, Costa Rica, Photo: Graham Edgar
Same Genus
![Halichoeres sp. [orientalis]](https://images.reeflifesurvey.com/0/species_c9_574515caa4dd2.w400.h266.jpg)
Distribution
Localised
Description
Red-brown body with light mottling on back, yellow lower head and blue stripes on cheek below a red eye. Juveniles mainly white with brown/black blotches over body.
Information
Max Size: 15 cm
Sea Temperature Range: 26.7-29.8°C
Depth: 4-30m
Habitat Generalization Index: 22.91
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: Vulnerable
Occurrence: Widespread (83.3% 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: Many (17 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: Joe Shields