Nectocarcinus integrifrons

Red swimmer crab
Nectocarcinus integrifrons
Nectocarcinus integrifrons, Narooma, NSW, Photo: Andrew Green
Nectocarcinus integrifrons
Nectocarcinus integrifrons, Narooma, NSW, Photo: Andrew Green
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Nectocarcinus integrifrons
Nectocarcinus integrifrons

Distribution

Temperate Australasia


Description

Bottom-dwelling species with flattened hind limbs, a purple-brown front half of the carapace and light brown rear, and by the smooth front margin between the eyes. It feeds mainly on plant material. Portunid crabs often pair together before mating and may remain in this position for several days.


Information

Max Size: 8 cm

Sea Temperature Range: 11.4-21.2°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: Frequent (10.5% 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: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney