Chaetodon plebeius

Chaetodontidae
Blue-dash Butterflyfish
  • Chaetodon plebeius, Adult, Ningaloo Reef, Australia, Photo: Rick Stuart-Smith
    Chaetodon plebeius, Adult, Ningaloo Reef, Australia, Photo: Rick Stuart-Smith
  • Chaetodon plebeius, Lord Howe Is, NSW, Photo: Andrew Green
    Chaetodon plebeius, Lord Howe Is, NSW, Photo: Andrew Green
  • Chaetodon plebeius, Juvenile, NSW, Australia, Photo: Ian Shaw
    Chaetodon plebeius, Juvenile, NSW, Australia, Photo: Ian Shaw
Distribution
Temperate Australasia, Tropical Indo-Pacific
Description
Information
  • Max Size: 15 cm
  • Sea Temperature Range: 19.1-30.2°C
  • Depth: 1-10m
  • Habitat Generalisation Index: 21.9
    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
  • IUCN Threat Status: Least Concern
  • Occurrence: Common (36% 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 (3 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
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