Chromis westaustralis
West australian puller
Chromis westaustralis, Rottnest Island, WA, Photo: Antonia Cooper
Chromis westaustralis, Rottnest Island, WA, Photo: Ben Jones
Same Genus
Distribution
Localised, Temperate Australasia, Tropical Indo-Pacific
Description
Black spot at pectoral fin base, wide dark upper and lower tail margins, and light spot under rear base of dorsal fin. Sometimes forms huge schools on subtropical WA reefs.
Information
Max Size: 9 cm
Sea Temperature Range: 17.8-24°C
Depth: 2-75m
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: Not Evaluated
Occurrence: Common (26.4% 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: Large aggregations (105 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.