Pterocaesio marri
Bigtail Fusilier | Bananafish | Black-tipped Fusilier | Marr's Fusilier | Twin Stripe Fusilier
Pterocaesio marri, Photo: Rick Stuart-Smith
Pterocaesio marri, Jervis Bay, NSW, Photo: Andrew Green
Similar Species
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 Generalization Index: 9.35
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.
Conservation and Rarity
IUCN Status: Not Evaluated
Occurrence: Infrequent (6.9% 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