Ctenochaetus striatus

Fine-lined tang | Fine-lined Bristletooth | Lined Bristletooth | Striated Surgeonfish | Striped Bristletooth | Ctenochaetus sp. [white tail]
Ctenochaetus striatus
Ctenochaetus striatus, North WA, Australia, Photo: Andrew Green
Ctenochaetus striatus
Ctenochaetus striatus, Bali, Indonesia, Photo: Ian Shaw
Ctenochaetus striatus
Ctenochaetus striatus, WA, Australia, Photo: Rick Stuart-Smith
Ctenochaetus striatus
Ctenochaetus striatus, Coral Sea, Australia, Photo: Rick Stuart-Smith
Ctenochaetus striatus
Ctenochaetus striatus, Japan, Photo: Graham Edgar
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Ctenochaetus striatus
Ctenochaetus striatus
Ctenochaetus striatus
Ctenochaetus striatus
Ctenochaetus striatus

Distribution

Temperate Australasia, Tropical Indo-Pacific


Description

Olive-brown with spots on upper half of face, grading to lines on body, and a strongly lunate tail. Lack of spots above and below tail base distinguish it from C. binotatus (Twospot Surgeonfish), C. cyanocheilus (Yelloweye Bristletooth), Acanthurus nigrofuscus (Dusky Surgeonfish) and A. nigroris (Greyhead Surgeonfish). Very common.


Information

Max Size: 26 cm

Sea Temperature Range: 22.4-31.2°C

Depth: 1-35m

Habitat Generalization Index: 33.07

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: Least Concern

Occurrence: Widespread (50.3% 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 (24 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.


Edit by: Joe Shields