Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Acanthuridae
(Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Ctenochaetus: Greek, kteis, ktenos = comb + Greek, chaite = hair (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 1 - 113 m (Ref. 42056). Tropical; 21°C - 27°C (Ref. 27115); 30°N - 30°S
Eastern Central Pacific: endemic to the Hawaiian Islands and Johnston Island.
Length at first maturity / Size / Weight / Age
Maturity: Lm 14.5  range ? - ? cm
Max length : 15.0 cm SL male/unsexed; (Ref. 94645)
soft rays: 22 - 25. 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).
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).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Spawn in pairs (Ref. 240).
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. (Ref. 42056)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Reports of ciguatera poisoning (Ref. 30298)
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 24.4 - 28.9, mean 27.4 (based on 382 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02138 (0.01255 - 0.03641), b=3.03 (2.89 - 3.17), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (K=0.9).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .