Pempheris schwenkii

Pempheridae
Silver Bullseye, Black-stripe Sweeper, Schwenk's Sweeper, Silver Sweeper
  • Pempheris schwenkii, Murion Is, WA, Photo: Andrew Green
    Pempheris schwenkii, Murion Is, WA, Photo: Andrew Green
  • Pempheris schwenkii, Exmouth, WA, Photo: Andrew Green
    Pempheris schwenkii, Exmouth, WA, Photo: Andrew Green
Distribution
Tropical Indo-Pacific
Description
Coppery to silvery colouration, anal fin with a black stripe along inner margin, with a white stripe outside. Lacks spot at base of pectoral fin P. oualensis (Oualan Bullseye). Found in caves and under ledges during the day.
Information
  • Max Size: 15 cm
  • Sea Temperature Range: 17.2-31.1°C
  • Depth: 5-40m
  • Habitat: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 5.1
    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: Infrequent (6% 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 (18 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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