Naso thynnoides (Cuvier, 1829)
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Naso thynnoides (Cuvier, 1829)

Genus: ,

Scientific Name: Naso thynnoides (Cuvier, 1829)

English Name: Oneknife unicornfish

Creole Name:

French Name:

IUCN Red List Status: Least Concern (LC)

Description:

Dorsal spines: 4; Dorsal rays: 28-30; Anal spines: 2; Anal rays: 27-29.

Body oval and elongate. Grey, paler ventrally, with narrow dark bluish-grey bars on body and irregular spots on head. Oblique groove on snout below nostrils reaching half way from eye to mouth. A broad diffuse yellow stripe on side of body. Single dusky peduncular plate with semi-circular keel. Caudal fin emarginated and bluish grey. 


Size:

Maturity: Lm unknown. Range unknown. Max Length: 40cm FL


Habitat and Ecology:

Reef associated occurring in lagoons to outer seaward reefs (depth 2-40m, typically more than 10m). Occurs singly or in schools. Feeds on zooplankton and algae. Sleeps on reefs at night, taking on a disruptive mottled pattern.


Fishery Status:

This species is not protected or subject to fishery regulations. It is a rare component of the catch. 


Notes:

The colour of the photo’d specimen has been altered by storage on ice.


References:

Abesamis, R. et al 2012. Naso thynnoides. The IUCN Red List of Threatened Species 2012: e.T177980A1509761. http://dx.doi.org/10.2305/IUCN.UK.2012.RLTS.T177980A1509761.en. (16/10/18).

Froese, R. and D. Pauly. Eds. 2018. FishBase https://www.fishbase.de/summary/Naso-thynnoides (16/10/18)

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


Citation:

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