Alphestes immaculatus

Pacific mutton hamlet
Alphestes immaculatus
Alphestes immaculatus, Galapagos Islands, Ecuador, Photo: Graham Edgar
Alphestes immaculatus
Alphestes immaculatus, Machalilla, Ecuador, Photo: Graham Edgar
Alphestes immaculatus
Alphestes immaculatus, Machalilla, Ecuador, Photo: Graham Edgar
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Alphestes immaculatus
Alphestes immaculatus
Alphestes immaculatus

Distribution

Tropical Eastern Pacific


Description

Mottled reddish-brown with obscure bars on body, and white blotches and dark spots covering head, body and fins. Nocturnal feeder, hiding during the day, sometimes partly covering itself in sand.


Information

Max Size: 30 cm

Sea Temperature Range: 20.4-30.2°C

Depth: 1-50m

Habitat Generalization Index: 3.34

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: Frequent (11.9% 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 (3 per transect)

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


Edit by: Joe Shields