Naso lituratus (Forster, 1801)

Orangespine unicornfish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Acanthuridae \| Nasinae
Synonyms	Acanthurus lituratus, Callicanthus lituratus, Aspisurus carolinarum, ... more
Common names	Masked unicornfish, Clown tang, Pacific orange-spine unicorn, ... more

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Image of Naso lituratus (Orangespine unicornfish)

Picture by Randall, J.E.

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Randall, J.E., G.R. Allen and R.C. Steene. 1990. (Ref. 2334)
Other references | Biblio | Coordinator : Randall, John E. | Collaborators

Size / Weight / Age

Max length : 46.0 cm SL male/unsexed; (Ref. 37792)

Environment

Reef-associated; marine; depth range 0 - 90 m (Ref. 9710), usually 5 - 30 m (Ref. 37792)

Climate / Range

Tropical; 24°C - 26°C (Ref. 27115); 35°N - 30°S

Pacific Ocean: Honshu, Japan south to the Great Barrier Reef and New Caledonia and east to the Hawaiian Islands, French Polynesia, and Pitcairn. Eastern Pacific: Clipperton Island. Once regarded a wide-ranging Indo-Pacific species, the Indian Ocean population is now recognized as a separate species, Naso elegans.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 6; Dorsal soft rays (total): 28 - 31; Anal spines: 2; Anal soft rays: 29 - 31. Dorsal fin black, the black continuing as a pointed projection onto nape, with a pale blue line at base and a broad outer white zone on soft portion; anal fin mainly orange; dorsal and anal fins with a narrow blue margin and black submarginal line; caudal fin with a yellow submarginal band posteriorly (Ref. 37792). Caudal fin emarginate with adult males having trailing filaments from each corner (Ref. 37792).

Found in areas of coral, rock, or rubble of lagoon and seaward reefs, Ref. 48637. Benthopelagic (Ref. 58302). Adults usually in small groups. Juveniles in shallow rocky reefs, sometimes in small aggregations mixed with other acanthurids of similar size (Ref. 48637). Feed mainly on leafy brown algae (Sargassum and Dictyota). Sometimes in large aggregations (Ref. 37792). Very seldom poisonous (Ref. 4795). Pair-spawning has been observed.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Venomous (Ref. 4716)

Human uses
Fisheries: minor commercial; aquarium: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| Bio-Quiz \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| Point map

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low to moderate vulnerability (34 of 100)	Medium

Entered by Luna, Susan M.

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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