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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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Naso brachycentron
Picture by Randall, J.E.


Philippines country information

Common names: Bagis, Bakwak, Dangit
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Cebu City (Ref. 58652), Dauin-Apo I. (Ref. 127519). Also Ref. 1602, 37792, 53416, 121724.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Broad, G., 2003
National Database:

Common names from other countries

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | 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 Écologie

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

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

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

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm FL mâle / non sexé; (Ref. 1602)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 4 - 5; Rayons mous dorsaux (Total) : 28 - 30; Épines anales: 2; Rayons mous anaux: 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).

Biologie     Glossaire (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 | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Spawn in pairs (Ref. 240).

Référence principale Upload your references | Références | Coordinateur : Randall, John E. | Collaborateurs

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

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 04 May 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

Pêcheries: commercial; Aquarium: Commercial
FAO(Publication : search) | FishSource | Sea Around Us

Plus d'informations

Trophic ecology
Éléments du régime alimentaire
Diet compositions
Food consumptions
Food rations
Prédateurs
Ecology
Écologie
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Fréquences de longueurs
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larves
Dynamique des populations larvaires
Distribution
Pays
Zones FAO
Écosystèmes
Occurrences
Introductions
BRUVS - Videos
Anatomy
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Cerveaux
Otolithes
Physiology
Body compositions
Nutrients
Oxygen consumptions
Type de nage
Swimming speeds
Visual pigment(s)
Sons de poissons
Diseases / Parasites
Toxicities (LC50s)
Genetics
Génétique
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Profils d'aquaculture
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Ciguatera cases
Stamps, coins, misc.
Outreach
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References
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Sources Internet

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).
Niveau trophique (Ref. 69278):  2.7   ±0.29 se; based on food items.
Résilience (Ref. 120179):  Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.429; tmax=31).
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).
Catégorie de prix (Ref. 80766):   Medium.