Acanthemblemaria hancocki

Chaenopsidae
Hancocks Blenny, Hancock's Blenny
  • Acanthemblemaria hancocki, Nicaragua, Photo: Rick Stuart-Smith
    Acanthemblemaria hancocki, Nicaragua, Photo: Rick Stuart-Smith
  • Acanthemblemaria hancocki, Coiba, Panama, Photo: Graham Edgar
    Acanthemblemaria hancocki, Coiba, Panama, Photo: Graham Edgar
  • Acanthemblemaria hancocki, Nicaragua, Photo: Rick Stuart-Smith
    Acanthemblemaria hancocki, Nicaragua, Photo: Rick Stuart-Smith
  • Acanthemblemaria hancocki, Coiba, Panama, Photo: Graham Edgar
    Acanthemblemaria hancocki, Coiba, Panama, Photo: Graham Edgar
  • Acanthemblemaria hancocki, Machalilla, Ecuador, Photo: Graham Edgar
    Acanthemblemaria hancocki, Machalilla, Ecuador, Photo: Graham Edgar
Distribution
Tropical Eastern Pacific
Description
Greenish grey head with red eyes, lips and chin, large round brown spots, and a covering of fine blue spots. Inhabits empty mollusc and tube worm holes in the reef, sitting with just it's head showing.
Information
  • Max Size: 5 cm
  • Sea Temperature Range: 23.2-30.3°C
  • Depth: 1-5m
  • Habitat: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 14.3
    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
  • IUCN Threat Status: Least Concern
  • Occurrence: Widespread (51% 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: Several (10 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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