Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Acanthuridae
(Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Ctenochaetus: Greek, kteis, ktenos = comb + Greek, chaite = hair (Ref. 45335).
Environment / Climate / Range
Marine; reef-associated; depth range 1 - 113 m (Ref. 42056). Tropical; 21°C - 27°C (Ref. 27115); 30°N - 30°S
Length at first maturity / Size / Weight / Age
Maturity: Lm 14.5  range ? - ? cm
Max length : 14.6 cm SL male/unsexed; (Ref. 42056)
soft rays: 22 - 25. C. strigosus differs from C. striatus by having a more truncate tail and a pale yellowish ring around the eye (Ref. 37816). Yellow on edge of orbit broad and conspicuous (pale in preservative), especially posteriorly. Small spots on head blue, not extending onto anterior body or chest. Posterior gill rakers 30-36 (Ref 42056).
Eastern Central Pacific: endemic to the Hawaiian Islands and Johnston Island. Western Central Pacific: Australia (Ref. 2334).
Benthopelagic over coral, rock, and rubble (Ref. 58302). Solitary. Mainly diurnal (Ref. 4887). Feeds on detritus by whisking its comb-like teeth over the bottom as it closes its mouth (Ref. 3921).
Randall, J.E and K.D. Clements, 2001. Second revision of the surgeonfish genus Ctenochaetus (Perciformes: Acanthuridae), with descriptions of two new species. Indo-Pac. Fish. (32):33 p.
IUCN Red List Status (Ref. 90363)
Threat to humans
Reports of ciguatera poisoning (Ref. 30298)
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01860 (0.01068 - 0.03240), b=3.02 (2.87 - 3.17), based on LWR estimates for species & Subfamily-BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.0 ±0.00 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (K=0.9).
Vulnerability (Ref. 59153
): Low vulnerability (20 of 100) .