Bathygobius krefftii

Kreffts Frillgoby
Bathygobius krefftii
Bathygobius krefftii, NSW, Australia, Photo: Ian Shaw
Bathygobius krefftii
Bathygobius krefftii, Jervis Bay, NSW, Photo: Andrew Green
Bathygobius krefftii
Bathygobius krefftii, Night. Jervis Bay, NSW, Photo: Andrew Green
Bathygobius krefftii
Bathygobius krefftii, Night. Jervis Bay, NSW, Photo: Andrew Green
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Bathygobius krefftii
Bathygobius krefftii
Bathygobius krefftii
Bathygobius krefftii

Distribution

Temperate Australasia


Description

Rounded head and dark black patches across the sides and back of the body. The species is abundant near the mouths of estuaries along the New South Wales coast, where it is often associated with seagrass and oyster beds. The South Australia population appears to be isolated from the eastern population.


Information

Max Size: 9 cm

Sea Temperature Range: 15.2-24.6°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: Infrequent (2.3% 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: Several (6 per transect)

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


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