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Trachinotus blochii

Carangidae
Snub-nose Dart, Asian Pompano, Buck-nosed Trevally, Golden Permit, Goldfin Permit, Ladyfish, Long Dorsal Fin Pompano, Moonfish, Oyster Cracker, Oyster Eater, Silver Pompano, Snub-nosed Swallowtail, Snubnosed Pompano, Tropical Permit
  • Trachinotus blochii, QLD, Australia, Photo: Rick Stuart-Smith
    Trachinotus blochii, QLD, Australia, Photo: Rick Stuart-Smith
  • Trachinotus blochii, Great Barrier Reef, Australia, Photo: Graham Edgar
    Trachinotus blochii, Great Barrier Reef, Australia, Photo: Graham Edgar
  • Trachinotus blochii, Great Barrier Reef, Australia, Photo: Ian Shaw
    Trachinotus blochii, Great Barrier Reef, Australia, Photo: Ian Shaw
  • Trachinotus blochii, Gulf of Carpentaria, QLD, Photo: Andrew Green
    Trachinotus blochii, Gulf of Carpentaria, QLD, Photo: Andrew Green
  • Trachinotus blochii, Bouganville Reef, Coral Sea, Photo: Graham Edgar
    Trachinotus blochii, Bouganville Reef, Coral Sea, Photo: Graham Edgar
Distribution
Tropical Indo-Pacific
Description
High bulbous head and body similar to Trachinotus anak (Giant Oystercracker), but with proportionally longer dorsal and anal fins, and yellow fins with black margins. Both species are often collectively referred to as 'Indo-Pacific permit'.
Information
  • Max Size: 110 cm
  • Sea Temperature Range: 22.2-30.6°C
  • Depth: 1-7m
  • Habitat: Coral Reef, Rocky Reef, Soft sediment
  • Habitat Generalisation Index: 0.2
    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: Infrequent (2% 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: Few (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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