Halichoeres discolor

Labridae
Cocos Wrasse, Cocos Wrasse
  • Halichoeres discolor, Cocos Island, Costa Rica, Photo: Graham Edgar
    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, 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
    Halichoeres discolor, Juvenile, Cocos Island, Costa Rica, Photo: Graham Edgar
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: Coral Reef
  • Habitat Generalisation Index: 22.9
    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
Rarity
  • Threats: Climate change/warming, Habitat degradation
  • IUCN Threat Status: Vulnerable
  • Occurrence: Widespread (83% 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
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