Pseudopallene ambigua

Yellow sea spider
Pseudopallene ambigua
Pseudopallene ambigua, Tasman Peninsula, TAS, Photo: Andrew Green
Pseudopallene ambigua
Pseudopallene ambigua, Tasman Peninsula, TAS, Photo: Andrew Green
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Pseudopallene ambigua
Pseudopallene ambigua

Distribution

Temperate Australasia


Description

It is the only pycnogonid species regularly seen by divers and is occasionally found swimming in open water. The species can be recognised by its bright yellow colour, occasionally with red markings, and long, smooth legs.


Information

Max Size: 5 cm

Sea Temperature Range: 12.3-23.7°C

Depth: 8-126

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 (2.0% 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.


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