Anthaster valvulatus

Mottled seastar
Anthaster valvulatus
Anthaster valvulatus, Albany, WA, Photo: Olivia Johnson
Anthaster valvulatus
Anthaster valvulatus, Jurien Bay, WA, Photo: Graham Edgar
Anthaster valvulatus
Anthaster valvulatus, Rapid Bay, WA, Photo: Graham Edgar
Anthaster valvulatus
Anthaster valvulatus, Albany, WA, Photo: Tyson Jones
Anthaster valvulatus
Anthaster valvulatus, Rapid Bay, South Australia, Photo: Antonia Cooper
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Anthaster valvulatus
Anthaster valvulatus
Anthaster valvulatus
Anthaster valvulatus
Anthaster valvulatus

Distribution


Description

Highly variable in colour, shape and in the number and distribution of raised lumps. Also found in a variety of habitats, including reef, seagrass and sand.


Information

Max Size: 24 cm

Sea Temperature Range: 14.7-23.2°C

Depth: N/A

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 (10.3% 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: Solitary (1 per transect)

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