Abudefduf vaigiensis

Pomacentridae
Sergeant Major, Common Seageant, Five Finger, Fivebanded Sergeant, Indo-Pacific Sergeant, Yellowback Sergeant
  • Abudefduf vaigiensis, Adult, NSW, Australia, Photo: Ian Shaw
    Abudefduf vaigiensis, Adult, NSW, Australia, Photo: Ian Shaw
  • Abudefduf vaigiensis, Juvenile. Photo: Rick Stuart-Smith
    Abudefduf vaigiensis, Juvenile. Photo: Rick Stuart-Smith
  • Abudefduf vaigiensis, Naigani Is, Fiji, Photo: Andrew Green
    Abudefduf vaigiensis, Naigani Is, Fiji, Photo: Andrew Green
Distribution
Tropical Indo-Pacific
Description
Five narrow and distinct black bars. Often yellow patch on upper body. Can rapidly change colour from almost black or blue when amongst the reef to characteristic colour pattern in mid-water. Often confused with the closely related Atlantic species Abudefduf saxatilis.
Information
  • Max Size: 20 cm
  • Sea Temperature Range: 16.6-31.3°C
  • Depth: 1-15m
  • Habitat: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 17.7
    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: Frequent (14% 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 (19 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
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