Acanthurus nigricans, Whitecheek surgeonfish : fisheries, aquarium

Acanthurus nigricans (Linnaeus 1758)

Whitecheek surgeonfish
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Image of Acanthurus nigricans (Whitecheek surgeonfish)
Acanthurus nigricans
Picture by Randall, J.E.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).  More on author: Linnaeus.

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

; marino associati a barriera corallina; distribuzione batimetrica 1 - 67 m (Ref. 1602), usually 2 - 67 m (Ref. 27115).   Tropical; 21°C - 29°C (Ref. 27115); 30°N - 24°S

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Eastern Indian Ocean: known only from Cocos-Keeling Islands and Christmas Island. Pacific Ocean: Ryukyu Islands and Great Barrier Reef to the Hawaiian Islands and French Polynesia (excluding Rapa). This species has crossed the Eastern Pacific Barrier to the Revillagigedo Islands, Cocos Island, Galapagos Islands, and the coast of Mexico.

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 21.3 cm TL maschio/sesso non determinato; (Ref. 2334); Età massima riportata: 34 anni (Ref. 52229)

Short description Morfologia | Morfometria

Spine dorsali (totale): 9; Raggi dorsali molli (totale): 28-31; Spine anali 3; Raggi anali molli: 26 - 28. A horizontally elongate white blotch directly below eye. No orange band in outer part of dorsal fin. Caudal peduncle black except for yellow edge of socket and sheath of peduncular spine. Base of pectoral fin black (ref 9808).Gill rakers on anterior row:17-19, on posterior row:18-20.

Biologia     Glossario (es. epibenthic)

Adults inhabit hard substrate areas of clear lagoon and seaward reefs from the lower surge zone to at least 67 m and feeds on filamentous algae. Solitary or in groups (Ref. 90102). Monogamous (Ref. 52884, 48637). Benthopelagic (Ref. 58302). Small juveniles shy among large corals (Ref. 48637). Territorial species. Common throughout Micronesia and hybridizes with the rare A. achilles. Size of metamorphosis from the postlarva stage to juvenile is 5.5 to 6 cm (Ref. 9267).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Monogamous mating is observed as both facultative and social (Ref. 52884).

Main reference Upload your references | Bibliografia | Coordinatore : Randall, John E. | Collaboratori

Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 04 May 2010

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesca: pesca di sussistenza; Acquario: Commerciale
FAO(Publication : search) | FishSource | Sea Around Us

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione
Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
Deposizione
Spawning aggregation
Fecundity
Uova
Egg development
Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
Reclutamento
Abbondanza
BRUVS
Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
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Frequenze alleliche
Ereditarietà
Malattie
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Estimates based on models

Preferred temperature (Ref. 115969): 24.5 - 28.8, mean 27.4 °C (based on 650 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02630 (0.01517 - 0.04562), b=2.93 (2.78 - 3.08), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.0   ±0.00 se; based on food items.
Generation time: 3.9 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilienza (Ref. 120179):  Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (K=0.28; tmax=34).
Vulnerability (Ref. 59153):  Low vulnerability (20 of 100) .
Price category (Ref. 80766):   Medium.