Caesio teres

Blue Fusilier | Beautiful Fusilier | Blue and Gold Fusilier | Yellowback Fusilier | Yellowtail Fusilier
Caesio teres
Caesio teres, Naigani Island, Fiji, Photo: Andrew Green
Caesio teres
Caesio teres, Torres Strait, QLD, Australia, Photo: Graham Edgar
Caesio teres
Caesio teres, Coral Sea, Australia, Photo: Ian Shaw
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Caesio teres
Caesio teres
Caesio teres


Temperate Australasia, Tropical Indo-Pacific


Silver-blue body with a yellow tail fin and rear body, yellow extends along back for about 2/3 of the body, to almost in line with front of pectoral fin, black spot at base of pectoral fin. Differs C. cuning (Yellowtail Fusilier) by having a more slender body profile and more yellow on back, and from two similar non-fusiliers, Paracaesio xanthura (False Fusilier) and Labracoglossa nitida (Blue Knifefish), by lacking narrow blue line below dorsal fin, and possessing spot at base of pectoral fin.


Max Size: 40 cm

Sea Temperature Range: 21.7-31.4°C

Depth: 5-50m

Habitat Generalization Index: 9.55

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 (8.7% 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: Large aggregations (101 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