Neoglyphidodon polyacanthus

Pomacentridae
Multi-spined Damsel
  • Neoglyphidodon polyacanthus, Photo: Rick Stuart-Smith
    Neoglyphidodon polyacanthus, Photo: Rick Stuart-Smith
  • Neoglyphidodon polyacanthus, Juvenile. Photo: Rick Stuart-Smith
    Neoglyphidodon polyacanthus, Juvenile. Photo: Rick Stuart-Smith
  • Neoglyphidodon polyacanthus, Juvenile. Photo: Rick Stuart-Smith
    Neoglyphidodon polyacanthus, Juvenile. Photo: Rick Stuart-Smith
  • Neoglyphidodon polyacanthus, Adult, Lord Howe Is, NSW, Photo: Ian Shaw
    Neoglyphidodon polyacanthus, Adult, Lord Howe Is, NSW, Photo: Ian Shaw
  • Neoglyphidodon polyacanthus, Lord Howe Is, NSW, Photo: Rick Stuart-Smith
    Neoglyphidodon polyacanthus, Lord Howe Is, NSW, Photo: Rick Stuart-Smith
  • Neoglyphidodon polyacanthus, Lord Howe Is, NSW, Photo: Andrew Green
    Neoglyphidodon polyacanthus, Lord Howe Is, NSW, Photo: Andrew Green
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: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 19.8
    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
Rarity
  • Threats: Habitat degradation
  • IUCN Threat Status: Not Evaluated
  • Occurrence: Frequent (16% 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 (30 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
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