Pterocaesio marri

Caesionidae
Bigtail Fusilier, Bananafish, Black-tipped Fusilier, Marr's Fusilier, Twin Stripe Fusilier
  • Pterocaesio marri, Photo: Rick Stuart-Smith
    Pterocaesio marri, Photo: Rick Stuart-Smith
  • Pterocaesio marri, Jervis Bay, NSW, Photo: Andrew Green
    Pterocaesio marri, Jervis Bay, NSW, Photo: Andrew Green
Distribution
Tropical Indo-Pacific
Description
Slender silver-blue body, black tail tips, and two narrow yellow stripes from behind eye. Lower stripe runs along the lateral line for most of body, until just before tail base, whereas lower stripe is below lateral line in the very similar P. digramma (Doubleline Fusilier). Often schools with other fusiliers.
Information
  • Max Size: 35 cm
  • Sea Temperature Range: 22.8-31.4°C
  • Depth: 1-30m
  • Habitat: Coral Reef
  • Habitat Generalisation Index: 9.3
    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 (7% 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 (64 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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