FishBase | Search | All Living Things


Naso annulatus (Quoy &. Gaimard, 1825)
RINGTAIL UNICORNFISH
Ring-tailed Unicorn-fish; Ring-tailed Unicornfish; Ringtailed Unicornfish; Short-horned Unicorn-fish; White-margin Unicorn; Whitemargin Unicornfish; Priodon annulatus Quoy and Gaimard, 1825; White-margin unicornfish

Life   Vertebrata   Fish   Acanthuridae   Naso

Naso annulatus
© Copyright John Rangall, 2006 · 0
Naso annulatus

Click on map for details about points.

Links
español

Overview
Main identification features
  • horn very long
  • blue-grey
  • tail fin black + pale membranes and edges
  • tail base: 2 keels
Body elongate, oval; snout pointed, slopes at about 60°; adult with long, tapering horn before eye that can extend 1 head length forward (a bump on forehead of juveniles); teeth small, conical, with tips slightly depressed, smooth or with slight denticulations; 2 pairs of cutting keels on plates on narrow tail base; pelvics I, 3; tail edge straight, a series of small scallops on rear margin, long filaments from top and bottom in males (straight in juveniles); dorsal VI, 28-29; anal II, 27-28; pectoral 17-19 rays.

Uniform olive to brown; can switch on pale blue color; tail with wide rays blackish, membranes between rays, narrow margin, and filaments white. Juveniles with thin white dorsal and anal margins, a white saddle on the caudal peduncle, tail dark with white margin.

Size: 100 cm.

Habitat: juveniles and subadults benthic on reefs and rocky shores, adults in open water near exposed reef fronts.

Depth: 0-122 m; subadults usually 5-15 m, adults usually 10-30 m.

An Indo-Pacific species recorded as a vagrant from Cocos and Clipperton Atoll.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 122 m.
Depth Range Min: 0 m.
Diet: pelagic fish larvae; zooplankton; benthic microalgae.
Eastern Pacific Range: Northern limit=11; Southern limit=6; Western limit=-110; Eastern limit=-87; Latitudinal range=5; Longitudinal range=23.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Omnivore; Planktivore.
FishBase Habitat: Reef Associated.
Global Endemism: All Pacific (West + Central + East); Indo-Pacific only (Indian + Pacific Oceans); TEP non-endemic; "Transpacific" (East + Central &/or West Pacific); All species.
Habitat: Corals; Reef associated (reef + edges-water column & soft bottom); Rocks; Reef (rock &/or coral); Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 100 cm.
Regional Endemism: Island (s) only; Island (s); Tropical Eastern Pacific (TEP) non-endemic; Eastern Pacific non-endemic; All species.
Residency: Vagrant.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Mid Water; Near Bottom; Bottom + water column;


Names
Scientific source:

Links to other sites

References
  • Allen , G.R. and Robertson, D.R., 1997., An Annotated Checklist of the fishes of Clipperton Atoll, Tropical Eastern Pacific., Revista de Biologia Tropical, 45:813-843.
  • Osburn , R. C. and Nichols, J. T., 1916., Shore Fishes Collected by the 'Albatross' Expedition in Lower California with Descriptions of New Species., Bull. Amer. Mus. Nat. Hist., 35:139-181.
  • Quoy , J. R. C. and Gaimard, J. P., 1824., Description des Poissons. Chapter IX. In: Freycinet, L. de, Voyage autour du Monde...exécuté sur les corvettes de L. M. "L'Uranie" et "La Physicienne," pendant les années 1817, 1818, 1819 et 1820. Paris., Voyage Uranie, Zool., :1-328.
  • Robertson , D.R. and Allen, G.A., 1996., Zoogeography of the shorefish fauna of Clipperton Atoll., Coral Reefs, 15:121-131.
  • Smith , M. M. and Heemstra, P., 1986., Smith's Sea Fishes. Johannesburg: Macmillan South Africa. 1047 pp., Macmillan South Africa:1047pp.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


Supported by
go to Discover Life's Facebook group

Following modified from Australian Faunal Directory
   Top | See original

&pull 20q v5.145 20180528: Error 301 Moved Permanently http://biodiversity.org.au/afd/taxa/daa118ea-4bcf-42b0-ada6-5df92aa5f5ce/

Following modified from Taiwan Biodiversity National Information Network
   Top | See original

&pull 20q v5.145 20180528: Error 301 Moved Permanently http://taibnet.sinica.edu.tw/eng/taibnet_species_detail.php?gen=Naso&spe=annulatus

Following modified from FishBase
   Top | See original

http://www.fishbase.org/Summary/speciesSummary.php?genusname=Naso&speciesname=annulatus ---> http://192.134.151.83/Summary/speciesSummary.php?genusname=Naso&speciesname=annulatus
http://192.134.151.83/Summary/speciesSummary.php?genusname=Naso&speciesname=annulatus ---> https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Naso&speciesname=annulatus
https://fishbase.mnhn.fr/Summary/speciesSummary.php?genusname=Naso&speciesname=annulatus ---> https://fishbase.mnhn.fr/summary/Naso-annulatus.html
Naso annulatus, Whitemargin unicornfish : aquarium
You can sponsor this page

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Naso annulatus ( Quoy & Gaimard , 1825 )

Whitemargin unicornfish Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Naso annulatus   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Videos | Google image

Classification / Names Common names | Synonyms | Catalog of Fishes( genus , species ) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Acanthuriformes (Surgeonfishes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335 ) .
More on authors: Quoy & Gaimard .

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

Marine; reef-associated; depth range 1 - 60 m (Ref. 27115 ), usually 25 - 60 m (Ref. 27115 ). Tropical; 24°C - 28°C (Ref. 27115 ); 35°N - 31°S, 30°E - 128°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: East Africa, including the Mascarene Islands (Ref. 37792 ) to the Hawaiian, Marquesan, and Tuamoto islands, north to southern Japan, south to Lord Howe Island.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 100.0 cm TL male/unsexed; (Ref. 2334 )

Short description Morphology | Morphometrics

Dorsal spines (total): 5; Dorsal soft rays (total): 28-29; Anal spines : 2; Anal soft rays : 27 - 28. Plain brown or olivaceous in color, paler below; subadults with black caudal rays, narrow margins and white caudal filaments; pectoral fins with white distal margins (Ref. 3145 ).

Biology     Glossary (e.g. epibenthic)

Juveniles occur in clear, shallow lagoon reefs at depths as little as 1 m; adults rarely seen in less than 25 m, encountered off outer reef drop-offs in small schools (Ref. 30573 , 48637 ). Benthopelagic (Ref. 58302 ). Feeds on large zooplankton during the day and shelter within the reef during the night; also benthic algae (Ref. 30573 , 48637 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Spawn in pairs (Ref. 240 ).

Main reference Upload your references | References | Coordinator : Randall, John E. | Collaborators

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

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 30298 )





Human uses

Aquarium: commercial FAO - Publication: search | FishSource | Sea Around Us

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
BRUVS
References
Aquaculture
Aquaculture profile
Strains
Genetics
Electrophoreses
Heritability
Diseases
Processing
Nutrients
Mass conversion
Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Bio-Quiz | E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes : genus , species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome , nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go , Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201 ): 23.5 - 28.3, mean 27.1 °C (based on 335 cells). Phylogenetic diversity index (Ref. 82804 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.02239 (0.01279 - 0.03918), b=2.97 (2.82 - 3.12), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245 ). Trophic level (Ref. 69278 ):  2.1   ±0.09 se; based on food items. Generation time: 5.2 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. Resilience (Ref. 120179 ):  Low, minimum population doubling time 4.5 - 14 years (K=0.213; Tmax=23). Fishing Vulnerability (Ref. 59153 ):  Moderate to high vulnerability (45 of 100). Nutrients (Ref. 124155 ):  Calcium = 25.8 [14.9, 48.4] mg/100g; Iron = 0.496 [0.250, 0.868] mg/100g; Protein = 18.8 [17.6, 19.9] %; Omega3 = 0.111 [0.068, 0.214] g/100g; Selenium = 45.7 [24.5, 84.5] μg/100g; VitaminA = 34.8 [10.7, 111.9] μg/100g; Zinc = 1.21 [0.83, 1.76] mg/100g (wet weight);

Comments & Corrections
Back to Search Random Species Back to Top
Accessed through: Not available FishBase mirror site : localhost Page last modified by : mrius-barile - 20 July 2016
Fatal error : Uncaught ArgumentCountError: Too few arguments to function checkEcotox(), 1 passed in /var/www/html/summary/speciessummary.php on line 2304 and exactly 3 expected in /var/www/html/includes/speciessummary.lib.php:2579 Stack trace: #0 /var/www/html/summary/speciessummary.php(2304): checkEcotox() #1 {main} thrown in /var/www/html/includes/speciessummary.lib.php on line 2579

Updated: 2024-03-19 09:23:07 gmt
FishBase | Search | All Living Things | Top
© Designed by The Polistes Corporation