Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Scaridae
(Parrotfishes) > Scarinae
Etymology: Scarus: Greek, skaros = a fish described by anciente writers as a parrot fish; 1601 (Ref. 45335); dubius: From the terminal phase (Ref. 2689).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 1 - 20 m (Ref. 58302). Tropical
Eastern Central Pacific: found only in the Hawaiian Islands. Occurrences outside Hawaii are all misidentifications.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.6 cm SL male/unsexed; (Ref. 3921)
Inhabits seaward reefs (Ref. 9710). Benthopelagic (Ref. 58302). Grazes on benthic algae. Protogynous (Ref. 55080).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, distinct pairing during breeding (Ref. 205). Size at sex change: 26.4 - 39.8 cm TL (Ref. 55080).
Parenti, P. and J.E. Randall, 2000. An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (68):1-97. (Ref. 35918)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 24.9 - 29.1, mean 26.2 (based on 83 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00835 - 0.03008), b=3.05 (2.89 - 3.21), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .