Stegastes fuscus
Dusky damselfish | Demoiselle | Brazilian Damse
Similar Species
Same Genus
Distribution
Localised
Description
Charcoal grey to dark brown, scales on lateral line pale, outer eyes yellowish and often has pale tail and rear of dorsal and anal fins. Juveniles with head and back grey with blue lines and dashes, rest of body white, blue ringed ocellus on dorsal fin and another small ocellus on top of tail base.
Information
Max Size: 13 cm
Sea Temperature Range: 22.3-31.1°C
Depth: 1-40m
Habitat Generalization Index: N/A
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% 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 (45 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: Joe Shields