Pempheris oualensis

Pempheridae
Oualan Bullseye, Bronze Sweeper, Cave Sweeper, Copper Sweeper, Keeled Bullseye, Keeled Sweeper, Oualan Sweeper, Silver Sweeper
  • Pempheris oualensis, Photo: Ian Shaw
    Pempheris oualensis, Photo: Ian Shaw
  • Pempheris oualensis, Photo: Rick Stuart-Smith
    Pempheris oualensis, Photo: Rick Stuart-Smith
Distribution
Tropical Indo-Pacific
Description
Coppery colouration with a large, prominent black spot on pectoral fin base and small scales. Anal fin with black stripe along base, white stripe down middle and a clear outer margin, pectoral fin orange/pink. Found in caves and under ledges during the day.
Information
  • Max Size: 20 cm
  • Sea Temperature Range: 19.0-30.4°C
  • Depth: 1-36m
  • Habitat: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 13.1
    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: Not Evaluated
  • Occurrence: Frequent (13% 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 (11 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland
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