Aplodactylus lophodon
Rock cale | Crinodus lophodon
Distribution
Temperate Australasia
Description
Small rounded head and white spots on the fins. It usually sits on a coralline algal turf and can also wedge itself in crevices during large wave sets. It is the most abundant large fish seen in and just below the surge zone on exposed coastal reefs in New South Wales.
Information
Max Size: 45 cm
Sea Temperature Range: 14.1-23.2°C
Depth: 0-10m
Habitat Generalization Index: 24.29
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 (33.6% 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 (4 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