Aspasmogaster costata

Eastern clingfish
Aspasmogaster costata
Aspasmogaster costata, Port Stephens, Photo: Tom Davis
Aspasmogaster costata
Aspasmogaster costata, Coffs Harbour, NSW, Photo: Ian Shaw
Aspasmogaster costata
Aspasmogaster costata, Photo: Rick Stuart-Smith
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Aspasmogaster costata
Aspasmogaster costata
Aspasmogaster costata


Temperate Australasia


Secretive, under rocks and behind sea urchins. Distinguished from A. tasmaniensis by smaller size (only reaching 6cm) and more irregular crossbanding on body, also location if observed in mid to northern NSW.


Max Size: 5 cm

Sea Temperature Range: 15.3-23.2°C

Depth: 0-20m

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 (21.2% 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: Few (2 per transect)

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