Chromis westaustralis

West australian puller
Chromis westaustralis
Chromis westaustralis, Rottnest Island, WA, Photo: Antonia Cooper
Chromis westaustralis
Chromis westaustralis, Rottnest Island, WA, Photo: Ben Jones
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Chromis westaustralis
Chromis westaustralis

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 (26.3% 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 (103 per transect)

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