Paracaesio xanthura

Southern fusilier | False Fusilier | Gold-backed Fusilier | Pedley's Fusilier | Yellowtail Blue Snapper
Paracaesio xanthura
Paracaesio xanthura, NSW, Australia, Photo: Ian Shaw
Paracaesio xanthura
Paracaesio xanthura, juvenile, Photo: Rick Stuart-Smith
Paracaesio xanthura
Paracaesio xanthura, Jervis Bay, NSW, Photo: Andrew Green
Paracaesio xanthura
Paracaesio xanthura, adult, Elizabeth Reef, NSW, Australia, Photo: Graham Edgar
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Paracaesio xanthura
Paracaesio xanthura
Paracaesio xanthura
Paracaesio xanthura

Distribution

Temperate Australasia, Tropical Indo-Pacific


Description

Silver-blue body with yellow fusilier-like stripe along back to tail, large eye and mouth. Lacks black spot at base of pectoral fin present Caesio species (True Fusiliers). Lives in plankton-rich water on outer reef slopes.


Information

Max Size: 50 cm

Sea Temperature Range: 16.6-32.3°C

Depth: 5-150m

Habitat Generalization Index: 4.59

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: Frequent (10.7% 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 (40 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