Priacanthus hamrur

Priacanthidae
Crescent-tail Bigeye, Bigeye, Black-spot Bigeye, Crescent-tail Bigeye, Lunar-tailed Glasseye, Moontail Bullseye, Red Bullseye, Scad
  • Priacanthus hamrur, Red Sea, Photo: Rick Stuart-Smith
    Priacanthus hamrur, Red Sea, Photo: Rick Stuart-Smith
  • Priacanthus hamrur, South Wales, Australia, Photo: Ian Shaw
    Priacanthus hamrur, South Wales, Australia, Photo: Ian Shaw
  • Priacanthus hamrur, NSW, Australia, Photo: Ian Shaw
    Priacanthus hamrur, NSW, Australia, Photo: Ian Shaw
  • Priacanthus hamrur, Raja Ampat, Indonesia, Photo: Andrew Green
    Priacanthus hamrur, Raja Ampat, Indonesia, Photo: Andrew Green
  • Priacanthus hamrur, Coral Sea, QLD, Photo: Andrew Green
    Priacanthus hamrur, Coral Sea, QLD, Photo: Andrew Green
Distribution
Tropical Indo-Pacific
Description
Variable colouration from bright or dark red to silvery, with the ability to rapidly fade or darken into blotches or vertical bands. Indistinct black spot at base of pelvic fin, like P. blochii (Glasseye), but has more lunate tail margin than other Bigeye species. During the day hovers motionless amongst coral, in caves or under ledges.
Information
  • Max Size: 45 cm
  • Sea Temperature Range: 18.0-30.8°C
  • Depth: 8-250m
  • Habitat: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 5.8
    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: Climate change/warming, Exploitation, Habitat degradation
  • IUCN Threat Status: Not Evaluated
  • Occurrence: Infrequent (4% 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: Several (5 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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