South Africa country information

Common names: Bignose unicorn, Grootneus-eenhoringvis
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Natal (Ref. 3145, 5213). Also Ref. 53568.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Randall, J.E., 2001
National Database:

Common names from other countries

Scibbled unicornfish, Vlaming's unicornfish, Bignose unicorn, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

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

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

marina revassocierade; djupintervall 1 - 50 m (Ref. 9710), usually 1 - 50 m (Ref. 27115). Tropical; 24°C - 28°C (Ref. 27115); 30°N - 30°S, 30°E - 89°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-pan-Pacific: East Africa to the Galapagos Is. north to southern Japan, south to the southern Great Barrier Reef and New Caledonia, Tuamotus, throughout Micronesia

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm TL hane/ej könsbestämd; (Ref. 3145)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 6; Mjukstrålar i ryggfenan (totalt) : 26 - 27; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 27 - 29. Adults develop a convexly rounded prominent snout and unusually tall dorsal and anal fins. Side of body with vertical blue lines which break up into small blue spots dorsally and ventrally. A broad blue band extending from eye to front of rostral protuberance (Ref 9808).

Occurs in deep lagoon and seaward reefs. Found forming loose schools along upper regions of deep drop-offs (Ref. 48637). Forms mid-water aggregations off steep slopes during the day to feed on zooplankton. Usually found alone or in pairs. Omnivorous. Has the ability to show or hide its blue markings (Ref. 9710). Minimum depth reported taken from Ref. 27115.

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator : Randall, John E. | Medarbetare

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

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 06 May 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: mindre kommeriell; Akvarium: Kommersiell

FAO(Publication : search) | FishSource | Sea Around Us

Ytterligare information

Trophic ecology
Födoslag
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Ecology
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Population dynamics
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Length-weight rel.
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References
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Estimates based on models

Preferred temperature (Ref. 115969): 25.5 - 29, mean 27.6 (based on 684 cells).

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

Bayesian length-weight: a=0.02630 (0.01537 - 0.04500), b=3.01 (2.86 - 3.16), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 2.2 ±0.11 se; based on food items.

Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.264; Tmax=45).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (38 of 100).

Price category (Ref. 80766): Medium.

Naso vlamingii (Valenciennes, 1835)