Neoglyphidodon polyacanthus

Multi-spined damsel
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus, Photo: Rick Stuart-Smith
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus, juvenile, Photo: Rick Stuart-Smith
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus, juvenile, Photo: Rick Stuart-Smith
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus, adult, Lord Howe Is, NSW, Photo: Ian Shaw
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus, Lord Howe Is, NSW, Photo: Rick Stuart-Smith
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus, Lord Howe Is, NSW, Photo: Andrew Green
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Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus
Neoglyphidodon polyacanthus

Distribution

Tropical Indo-Pacific


Description

Dark adult with yellow pectoral fin and yellow hue around mouth. Juvenile yellow/orange with neon blue markings, similar to a number of other juvenile damselfishes. Two ocelli on back, the first larger ocellus joined by blue line to snout, and 2nd smaller ocellus where dorsal fin joins tail base.


Information

Max Size: 12 cm

Sea Temperature Range: 19.1-25.1°C

Depth: 2-30m

Habitat Generalization Index: 19.81

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 (14.3% 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: Many (28 per transect)

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