Parma oligolepis
Bigscale Scalyfin
Similar Species
Distribution
Temperate Australasia, Tropical Indo-Pacific
Description
Adults dark, with similar large scales and body shape to other Scalyfin species, but lacking any marks on operculum, as on the most-similar P. microlepis (White ear Scalyfin - a temperate species) and P. alboscapularis (Black Scalyfin). Random scattering of slightly lighter scales across the body Juveniles yellowish with ocellus on back, blue markings from head along back and dorsal fin, blue arc underneath eye, and blue spot at rear base of dorsal fin.
Information
Max Size: 17 cm
Sea Temperature Range: 16.2-28.1°C
Depth: 1-25m
Habitat Generalization Index: 1.62
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: Not Evaluated
Occurrence: Frequent (18.0% 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 (5 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney