Parma alboscapularis

Black angel
Parma alboscapularis
Parma alboscapularis, adult, Lord Howe Is, NSW, Photo: Andrew Green
Parma alboscapularis
Parma alboscapularis, adult, Poor Knights Is, New Zealand, Photo: Ian Shaw
Parma alboscapularis
Parma alboscapularis, adult, Photo: Rick Stuart-Smith
Parma alboscapularis
Parma alboscapularis, adult, Photo: Rick Stuart-Smith
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Parma alboscapularis
Parma alboscapularis
Parma alboscapularis
Parma alboscapularis

Distribution

Temperate Australasia, Tropical Indo-Pacific


Description

Uniform dark body, similar to P. polylepis (Banded Scalyfin) but lacking lumpy head, often with white earspot or scribble behind top of gill cover, and never with bands. Strongly territorial when nesting, charging at divers.


Information

Max Size: 22 cm

Sea Temperature Range: 14.7-24.9°C

Depth: 5-40m

Habitat Generalization Index: 10.91

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 (38.6% 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.