Mauritius country information

Common names: Chirurgien bagnard, Convict tang, Lonchan
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref: Cornic, A., 1987
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Rarely grows to 20 cm., more commonly 10-15 cm. Coastal, shallow, among algae. Also Ref. 1920, 5503.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mp.html
National Fisheries Authority: http://ncb.intnet.mu/fishco/index.htm
Occurrences: Occurrences Point map
Main Ref: Baissac, J. de B., 1990
National Database:

Common names from other countries

Chirurgien bagnard, Convict tang, Chirurgien bagnard, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | 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 0 - 90 m (Ref. 9710), usually 0 - 90 m (Ref. 27115). Tropical; 26°N - 36°S, 25°E - 85°W (Ref. 57245)

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

Indo-Pacific: throughout the region except for the seas around the Arabian Peninsula. Eastern Pacific: lower Gulf of California to Panama, including the Revillagigedo, Cocos, Clipperton, and Galapagos islands.

Length at first maturity / Size / Peso / Age

Maturity: L_m 8.8 range ? - ? cm
Max length : 27.0 cm TL maschio/sesso non determinato; (Ref. 3145); common length : 17.0 cm TL maschio/sesso non determinato; (Ref. 9267)

Short description Morfologia | Morfometria

Spine dorsali (totale): 9; Raggi dorsali molli (totale): 22-26; Spine anali 3; Raggi anali molli: 19 - 22. Body olivaceous gray, with 4 vertical stripes (1 stripe on head across the yellow eye; 1 on caudal peduncle); shading to white ventrally, often with a sharp line of demarcation. Sharp, forward-pointing, erectile spine on each side of caudal peduncle which folds down into a groove. Scales minute. Teeth with denticulations on sides and top. Gill rakers 18-22 in anterior row, 19-24 in posterior row.

Adults occur in lagoon and seaward reefs with hard substrate; young abundant in tide pools (Ref. 3145, 48637). Benthopelagic (Ref. 58302). Often feeding near freshwater run-offs where certain algae grow on rocks that are grazed (Ref. 48637). Occasionally form schools; feed on filamentous algae in large aggregations. During spawning, clouds of eggs and sperm are preyed upon by eagle rays which are often present during spawning. Form spawning aggregations (Ref. 27825). Size of metamorphosis from post-larva stage to juvenile is 3.2 cm (Ref. 9267). Utilized as a food fish (Ref. 7364). Minimum depth reported taken from Ref. 27115.

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

Form spawning aggregations (Ref. 27825).

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

Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)

IUCN Red List Status (Ref. 130435)

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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Reports of ciguatera poisoning (Ref. 4690)

Human uses

Pesca: commerciale; 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
Fecundity
Uova
Egg development

Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
Reclutamento
Abbondanza

Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Electrophoreses
Ereditarietà
Malattie
Elaborazione
Mass conversion

Collaboratori
Immagini
Stamps, Coins Misc.
Suoni
Ciguatera
Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
Vista

Strumenti

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Nomi Comuni | Photos

Fonti Internet

Estimates based on models

Preferred temperature (Ref. 115969): 23.4 - 28.9, mean 27.6 (based on 2614 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02399 (0.01950 - 0.02951), b=2.96 (2.92 - 3.00), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 2.8 ±0.35 se; based on food items.

Resilienza (Ref. 120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.35; tm=1-2).

Fishing Vulnerability (Ref. 59153): Low vulnerability (16 of 100).

Climate Vulnerability (Ref. 125649): Low to moderate vulnerability (29 of 100).

Price category (Ref. 80766): Medium.

Acanthurus triostegus (Linnaeus, 1758)