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Naso hexacanthus (Bleeker, 1855)

Sleek unicornfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Naso hexacanthus   AquaMaps   Data sources: GBIF OBIS
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Image of Naso hexacanthus (Sleek unicornfish)
Naso hexacanthus
Picture by Randall, J.E.

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335).
More on author: Bleeker.

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

marinhas; estuarina associadas(os) a recifes; intervalo de profundidade 0 - 150 m (Ref. 30573), usually 10 - 137 m (Ref. 27115). Tropical; 25°C - 28°C (Ref. 27115); 31°N - 32°S, 30°E - 122°W (Ref. 57251)

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Indo-Pacific: Red Sea and East Africa (Ref. 9710), including the Mascarene Islands (Ref. 37792) to the Hawaiian, Marquesas and Ducie islands, north to southern Japan, south to Lord Howe Island.

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: Lm 45.0  range ? - ? cm
Max length : 75.0 cm FL macho/indeterminado; (Ref. 1602); common length : 50.0 cm TL macho/indeterminado; (Ref. 30573)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 6; Raios dorsais (total) : 26 - 29; Espinhos anais: 2; Raios anais : 27 - 30. This species is distinguished by the following characters: body moderately deep and compressed, its depth 2.6 to 3.2 times in standard length (SL); dorsal profile of body uniformly convex, without any bony horn-like projection or protuberance anteriorly on head; mouth small; incisiform teeth very small, somewhat pointed, finely serrate on edges, as many as 80 in upper jaw and 100 in lower jaw of large adults; continuous unnotched D VI (rarely V or VII),26-29; A II,27-30; pectoral-fin rays 17-18 (usually 17); pelvic fins I,3; caudal fin slightly emarginate in young, becoming truncate in adults; caudal peduncle slender, subcylindrical, with a pair of bony plates on each side that develop large sharp antrorse keels with age; body colour dark brownish grey, shading ventrally to yellowish (life colour may vary from dark brown to light blue-grey); edge of operculum and preopercle usually dark brown; dorsal and anal fins yellowish with faint diagonal brown bands and a blue margin; tongue black at lengths of 25 cm or more (Ref. 9808).

Biologia     Glossário (p.ex. epibenthic)

Inhabits clear lagoon and seaward reef slopes (Ref. 9710, 48637). Benthopelagic (Ref. 58302). Usually seen in large schools (Ref. 90102). Mainly diurnal, it feeds on zooplankton such as crab larvae, arrow worms, pelagic tunicates, and occasionally filamentous red algae. The species is never poisonous (Ref. 4795). Minimum depth reported taken from Ref. 128797.

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Spawn in pairs (Ref. 240).

Referência principal Upload your references | Referências | Coordenador : Randall, John E. | Colaboradores

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

Status na Lista Vermelha da UICN (Ref. 130435)

  Segura ou pouco preocupante (LC) ; Date assessed: 06 May 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless (Ref. 4887)





Uso pelos humanos

Pescarias: espécies comerciais; peixe esportivo: sim; Aquário: Espécies comerciais
FAO - Publication: search | FishSource | Sea Around Us

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Trophic ecology
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Ecology
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Length-length rel.
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Estimates based on models

Preferred temperature (Ref. 123201): 22.1 - 28.9, mean 27.5 °C (based on 2224 cells).
Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01362 - 0.03514), b=2.99 (2.85 - 3.13), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.1   ±0.33 se; based on food items.
Generation time: 5.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (tm=7; K=0.221; Tmax=44;).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).
Categoria de preço (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 26.9 [15.5, 50.5] mg/100g; Iron = 0.53 [0.26, 0.94] mg/100g; Protein = 19.1 [18.0, 20.1] %; Omega3 = 0.152 [0.094, 0.288] g/100g; Selenium = 43 [22, 76] μg/100g; VitaminA = 73 [25, 209] μg/100g; Zinc = 1.14 [0.78, 1.63] mg/100g (wet weight);