Pervagor janthinosoma

Monacanthidae
Gillblotch Leatherjacket, Blackbar Filefish, Earspot Filefish, Gillblotch Filefish, Red-tailed Leatherjacket
  • Pervagor janthinosoma, Adult. Photo: Rick Stuart-Smith
    Pervagor janthinosoma, Adult. Photo: Rick Stuart-Smith
  • Pervagor janthinosoma, Adult, NSW, Australia, Photo: Ian Shaw
    Pervagor janthinosoma, Adult, NSW, Australia, Photo: Ian Shaw
  • Pervagor janthinosoma, NSW, Australia, Photo: Tom Davis
    Pervagor janthinosoma, NSW, Australia, Photo: Tom Davis
Distribution
Temperate Australasia, Tropical Indo-Pacific
Description
Orange patch in tail similar to P. alternans (yelloweye laetherjacket), but lacks orange eye. Also has black bar from rear of eye to base of pectoral fin, which other Pervagor species lack.
Information
  • Max Size: 13 cm
  • Sea Temperature Range: 19.1-30.8°C
  • Depth: 1-20m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 11.4
    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: Habitat degradation
  • 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: Solitary (1 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: extract from RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland
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