Chromis atripectoralis

Pomacentridae
Blue-green Chromis, Axilspot Chromis, Blackaxil Chromis
  • Chromis atripectoralis, Coral Sea, Australia, Photo: Rick Stuart-Smith
    Chromis atripectoralis, Coral Sea, Australia, Photo: Rick Stuart-Smith
  • Chromis atripectoralis, Naigani Is, Fiji, Photo: Andrew Green
    Chromis atripectoralis, Naigani Is, Fiji, Photo: Andrew Green
  • Chromis atripectoralis, Lord Howe Island, Australia, Photo: Ian Shaw
    Chromis atripectoralis, Lord Howe Island, Australia, Photo: Ian Shaw
  • Chromis atripectoralis, WA, Australia, Photo: Rick Stuart-Smith
    Chromis atripectoralis, WA, Australia, Photo: Rick Stuart-Smith
Distribution
Tropical Indo-Pacific
Description
Distinguished from C. viridis (Blue-green Puller) by light-margined black spot at pectoral fin base, visible when pectoral fin not held close to body. Occurs in large schools that retreat into staghorn coral when approached.
Information
  • Max Size: 12 cm
  • Sea Temperature Range: 19.1-31.1°C
  • Depth: 1-29m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 20.8
    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: Exploitation
  • IUCN Threat Status: Not Evaluated
  • Occurrence: Common (31% 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: Large aggregations (104 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
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