Acanthemblemaria hancocki

Hancocks blenny | Hancock's Blenny
Acanthemblemaria hancocki
Acanthemblemaria hancocki, Nicaragua, Photo: Rick Stuart-Smith
Acanthemblemaria hancocki
Acanthemblemaria hancocki, Coiba, Panama, Photo: Graham Edgar
Acanthemblemaria hancocki
Acanthemblemaria hancocki, Nicaragua, Photo: Rick Stuart-Smith
Acanthemblemaria hancocki
Acanthemblemaria hancocki, Coiba, Panama, Photo: Graham Edgar
Acanthemblemaria hancocki
Acanthemblemaria hancocki, Machalilla, Ecuador, Photo: Graham Edgar
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Acanthemblemaria hancocki
Acanthemblemaria hancocki
Acanthemblemaria hancocki
Acanthemblemaria hancocki
Acanthemblemaria hancocki

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 Generalization Index: 14.27

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: Widespread (50.8% 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