Acanthistius serratus

Western wirrah
Acanthistius serratus
Acanthistius serratus, Rottnest Island, WA, Photo: Rick Stuart-Smith
Acanthistius serratus
Acanthistius serratus, Geographe Bay, WA, Photo: Graham Edgar
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Acanthistius serratus
Acanthistius serratus


Temperate Australasia


Paler body than its eastern namesake and relatively small spots which coalesce into lines on the head.


Max Size: 50 cm

Sea Temperature Range: 16.3-23.3°C

Depth: 0-40m

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: Not Evaluated

Occurrence: Frequent (13.2% 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: Solitary (1 per transect)

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

Edit by: extract from GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney