Scarus ghobban, Blue-barred parrotfish : fisheries, aquarium

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Scarus ghobban Forsskål 1775

Blue-barred parrotfish
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Scarus ghobban   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Eupercaria/misc () > Scaridae (Parrotfishes) > Scarinae
Etymology: Scarus: Greek, skaros = a fish described by anciente writers as a parrot fish; 1601 (Ref. 45335).  More on author: Forsskål.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; brackish; reef-associated; depth range 1 - 90 m (Ref. 89642).   Tropical; 31°N - 35°S, 21°E - 77°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: Persian Gulf (Ref. 80050); Red Sea and Algoa Bay, South Africa (Ref. 5490) to Rapa and Ducie islands, north to southern Japan, south to Perth, New South Wales. Likely at Seychelles (Ref. 1623). Eastern Pacific: Gulf of California to Ecuador (Ref. 5227). Eastern Mediterranean: off the coast of Shiqmona, first Lessepsian immigrant of Family Scaridae (Ref. 45081).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 49 - ? cm
Max length : 75.0 cm TL male/unsexed; (Ref. 90102); common length : 30.0 cm TL male/unsexed; (Ref. 55763); max. reported age: 13 years (Ref. 42001)

Short description Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 9. This species is distinguished by the following characters: median predorsal scales 6-8 (usually 7); 3 scale rows on cheek, 1(6-7), 2(6-9), 3(3-5); pectoral-fin rays 13-15 (occasionally 15); terminal male usually with 2 conical teeth on side of upper dental plate (female without), with lips mainly covering the plates; caudal fin rounded in small female, with prolonged lobes in large adult. Colour of male dark reddish brown anteriorly with a bright green dot at top end of line from mouth through eye to top of opercular opening; female red on head, belly and fins, side with wavy black and white stripes, and dark green bands around the mouth and eye (Ref. 9793, 90102).

Biology     Glossary (e.g. epibenthic)

Adults inhabit lagoon and seaward reefs (Ref. 1602), in slopes and drop-offs (Ref. 48636), often solitary but may sometimes occur in small groups (Ref. 9710, 48636). Males common in atolls where they live mainly around the inner and outer edges of barrier reefs at depths of about 30 ft; females prefer deeper habitat (Ref. 4821). Small juveniles in groups are found inshore on algae reef habitat (Ref. 9710, 48636) and sometimes enter silty, murky environments (Ref. 5490). Feed by scraping algae from rocks and corals (Ref. 5227). Are protogynous hermaphrodites (Ref. 55367). Caught with nets and other types of artisanal gear. Marketed fresh (Ref. 5284). In the Hong Kong live fish markets (Ref. 27253). Minimum depth reported from Ref. 90102.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, distinct pairing during breeding (Ref. 205). Sex change occurs at 29.0 cm TL and 7 years of age (Ref. 55367).

Main reference Upload your references | References | Coordinator : Westneat, Mark | Collaborators

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. 123251)

  Least Concern (LC) ; Date assessed: 18 September 2009

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans


Human uses

Fisheries: commercial; aquarium: commercial
FAO(fisheries: production; publication : search) | FishSource | Sea Around Us

More information

Common names
Spawning aggregation
Egg development
Aquaculture profile
Allele frequencies
Mass conversion
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Estimates based on models

Preferred temperature (Ref. 115969): 24.5 - 29.1, mean 28 °C (based on 1802 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.01240 - 0.01848), b=3.03 (2.99 - 3.07), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  2.0   ±0.0 se; based on diet studies.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.47; tmax=13).
Prior r = 0.55, 95% CL = 0.36 - 0.83, Based on 1 stock assessment.
Vulnerability (Ref. 59153):  Moderate vulnerability (36 of 100) .
Price category (Ref. 80766):   High.