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Naso brachycentron (Valenciennes, 1835)

Humpback unicornfish
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Naso brachycentron   AquaMaps   Data sources: GBIF OBIS
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Image of Naso brachycentron (Humpback unicornfish)
Naso brachycentron
Picture by Randall, J.E.


Comoros country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cn.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Randall, J.E., 2001
National Database:

Common names from other countries

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 8 - 30 m (Ref. 90102), usually 15 - 20 m (Ref. 48637).   Tropical; 25°C - 28°C (Ref. 27115); 33°N - 25°S

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

Indo-Pacific: East Africa to the Marquesan and Society islands, north to the Ryukyu Islands, south to Vanuatu.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm FL hane/ej könsbestämd; (Ref. 1602)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 4 - 5; Mjukstrålar i ryggfenan (totalt) : 28 - 30; Taggstrålar i analfenan: 2; Mjukstrålar i analfenan: 27 - 28. Distinctive humped back; horn only in adult males. A few scattered small dark-edged pale spots on postorbital head and body above pectoral fins. No white margin posteriorly on caudal fin. Profile of snout from mouth to eye strongly sloping, forming an angle of about 40° to horizontal axis of body (Ref 9808).

Biologi     Ordlista (t.ex. epibenthic)

Inhabits deep coastal, usually in small groups but occasionally in large schools (Ref. 48637). Sometimes solitary (Ref. 90102). An uncommon species found in seaward reef slopes (Ref. 9710, 48637), also along rocky shores (Ref. 30573). Feeds on benthic algae (Ref. 30573). Caught with nets (Ref. 30573).

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

Spawn in pairs (Ref. 240).

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: 04 May 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fiskeri: kommersiell; Akvarium: Kommersiell
FAO(Publication : search) | FishSource | Sea Around Us

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
Ekologi
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videos
Anatomy
Gill areas
Hjärnstorlek
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetik
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
Outreach
Medarbetare
References
referenser

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Estimates based on models

Preferred temperature (Ref. 115969): 25.7 - 29, mean 28.1 (based on 218 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.00 (2.82 - 3.18), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  2.7   ±0.29 se; based on food items.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.429; tmax=31).
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).
Price category (Ref. 80766):   Medium.