Naso unicornis (Forsskal, 1775)
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Naso unicornis (Forsskal, 1775)

Genus: ,

Scientific Name: Naso unicornis (Forsskal, 1775)

English Name: Bluespine unicornfish

Creole Name: Korn kanal

French Name: Licorne

IUCN Red List Status: Least Concern (LC)

Description:

Dorsal spines: 6; Dorsal soft rays: 27-30; Anal spines: 2; Anal rays: 27-30.

Full bodied lateral profile. Yellowish to olivaceous grey dorsally, paler ventrally. Horn-like process in front of eye that does not extend anterior to mouth. Dorsal and anal fins yellowish with narrow blue stripes. Peduncular plates and keels blue; lips whitish or blue, dorsal and anal fins with a blue margin. Caudal fin emarginate when young, truncate with filamentous lobes in adult, orange basally, shading to grey, with a broad pale greenish posterior border; caudal filaments edged in blue.


Size:

Maturity: Lm unknown. Range unknown. Max Length: 70cm FL. 


Habitat and Ecology:

Reef associated (depth 1-180m) found in inshore coral and seaward reefs. Feeds on macroscopic algae, mainly larger brown algae (Turbinaria and Dictyota). Typically occurring in small groups, sometimes solitary. Juveniles in shallow protected bays and harbours. 


Fishery Status:

This species is not protected or subject to fishery regulations. It is caught in the fish trap fishery, but is a rare component of the catch. 


Notes:
References:

Froese, R. and D. Pauly. Eds. 2018. FishBase https://www.fishbase.de/summary/Naso-unicornis (18/10/18)

McIlwain, J. et al 2012. Naso unicornis. The IUCN Red List of Threatened Species 2012: e.T177970A1506556. http://dx.doi.org/10.2305/IUCN.UK.2012.RLTS.T177970A1506556.en. (18/10/18).

Randall, J.E. (2001). Surgeonfishes of Hawaii and the World. ISBN: 1-56647-561-9


Citation:

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