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Naso lituratus  (Forster, 1801)

Orangespine unicornfish
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Naso lituratus
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Australia country information

Common names: Orangespine unicornfish
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Ningaloo Reef and the Great Barrier Reef (Ref. 37792).
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: https://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Myers, R.F., 1991
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Nasinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Main reference

Size / Weight / Age

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

Environment

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

Climate / Range

Tropical; 24°C - 26°C (Ref. 27115), preferred ?; 35°N - 30°S, 96°E - 127°W

Distribution

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).

Biology     Glossary (e.g. epibenthic)

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. 115185)

Threat to humans

  Venomous (Ref. 4716)



Human uses

Fisheries: minor commercial; aquarium: commercial

More information

Common names
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Predators
Ecotoxicology
Reproduction
Maturity
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Fecundity
Eggs
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References
Aquaculture
Aquaculture profile
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Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
2.3   ±0.19 se; Based on food items.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3)

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