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).
Environment / Climate / Range
Marine; reef-associated; depth range 3 - 30 m (Ref. 9710). Tropical, preferred ?; 30°N - 28°S
Pacific Ocean: Christmas Island in the eastern Indian Ocean (Ref. 30874) to the Pitcairn Group.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 55.0 cm TL male/unsexed; (Ref. 2334); max. published weight: 2.5 kg (Ref. 3488)
soft rays: 9. Males often confused with S. tricolor. Juveniles and females distinct in their markings on the sides (Ref. 48636). Scales large. 6-7 median predorsal scales; 3 scale rows on cheek, ventral row with 2-6 scales (usually 3-4). Caudal fin slightly to moderately emarginate in initial phase; deeply lunate in terminal male. Dental plates partially covered by lips. Terminal males and some large initial-phase fish with 1 or 2 canines posteriorly on upper dental plate.
Often found on exposed outer lagoon and seaward reefs, usually in rich coral habitats. Generally solitary. Feeds on benthic algae (Ref. 89972). In Hong Kong live fish markets (Ref. 27253).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, distinct pairing during breeding (Ref. 205).
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. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.0 ±0.00 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100) .