Ctenochaetus binotatus, Twospot surgeonfish : fisheries, aquarium

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Ctenochaetus binotatus Randall, 1955

Twospot surgeonfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Ctenochaetus binotatus   AquaMaps   Data sources: GBIF OBIS
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Ctenochaetus binotatus
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Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Ctenochaetus: Greek, kteis, ktenos = comb + Greek, chaite = hair (Ref. 45335)binotatus: Name from Latin 'bi' meaning two and 'notatus' meaning marked; referring to the black spots at the rear base of the dorsal and anal fins.
More on author: Randall.

Environment: milieu / Klimaatzone / Diepte / distribution range Ecologie

marien rifbewoner; diepte 0 - 60 m (Ref. 128797), usually 10 - 50 m (Ref. 27115). Tropical; 24°N - 34°S, 29°E - 122°W

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Verspreidingskaart | Introducties | Faunafri

Indo-Pacific: East Africa to the Tuamoto Islands, north to southern Japan, south to central New South Wales (Australia) and New Caledonia. Not known from the Red Sea, Gulf of Oman, the Gulf, the Hawaiian Islands, Marquesas, Rapa, Pitcairn Islands, and Easter Island.

Grootte / Gewicht / Leeftijd

Maturiteit: Lm ?  range ? - ? cm
Max length : 22.0 cm TL mannelijk / geslacht onbekend; (Ref. 5213)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 8; Dorsale zachte stralen (totaal) : 24 - 27; Anale stekels: 3; Anale zachte stralen: 22 - 25. Prominent black spot at the rear base of dorsal and anal fins; adults with a bluish ring around the eye (Ref 1602). Dorsal and anal fins dark brown. Caudal fin brown in adults, yellow in young. Edge of lips smooth. Upper teeth usually with 5 denticulations (not including tip). Anterior gill rakers 23-29 (Ref 42056).
Body shape (shape guide): short and / or deep.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Inhabits coral and rubble areas of deep lagoon and seaward reefs. Usually solitary, grazing on surface algae (Ref. 90102). Feeds by scooping film of detritus and unicellular algae (e.g. dinoflagellate Gambierdiscus toxicus) that produce ciguatera toxin making this species a key link in the ciguatera food chain (Ref. 1602, 48637). Caught with nets (Ref. 30573).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload uw referenties | Referenties | Coördinator : Randall, John E. | Medewerkers

Randall, J.E and K.D. Clements, 2001. Second revision of the surgeonfish genus Ctenochaetus (Perciformes: Acanthuridae), with descriptions of two new species. Indo-Pac. Fish. (32):33 p. (Ref. 42056)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-1)

  Niet bedreigd (LC) ; Date assessed: 07 May 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Other (Ref. 1602)





Gebruik door de mens

Visserij: commercieel; Aquarium: Commercieel
FAO - Publication: search | FishSource | Sea Around Us

Meer informatie

Trofische ecologie
Food items (preys)
Dieetsamenstelling
Voedselconsumptie
Food rations
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Ecologie
Ecologie
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genoom
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Estimates based on models

Preferred temperature (Ref. 123201): 24.5 - 28.9, mean 27.7 °C (based on 1034 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03388 (0.02171 - 0.05288), b=2.93 (2.80 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisch niveau (Ref. 69278):  2.0   ±0.00 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (12 of 100). 🛈
Prijsklasse (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 34.7 [21.3, 57.7] mg/100g; Iron = 0.248 [0.133, 0.599] mg/100g; Protein = 18.1 [16.8, 19.3] %; Omega3 = 0.13 [0.08, 0.21] g/100g; Selenium = 21.9 [12.8, 39.9] μg/100g; VitaminA = 44.8 [10.4, 180.9] μg/100g; Zinc = 0.382 [0.283, 1.300] mg/100g (wet weight); based on nutrient studies.