Acanthurus tristis (Randall, 1993)
>
>
Acanthurus tristis (Randall, 1993)

Genus: ,

Scientific Name: Acanthurus tristis (Randall, 1993)

English Name: Blackcheek surgeonfish

Creole Name: Sirizyen

French Name:

IUCN Red List Status: Least Concern (LC)

Description:

Dorsal spines: 8; Dorsal rays: 27-28; Anal spines: 3; Anal rays: 22-29.
Small, full-bodied, laterally compressed surgeon fish. Mouth somewhat protruding. Up to 17 teeth in upper jaw and 22 in lower. Dorsal profile of snout concave. Caudal fin of adults lunate. Adults dark brown but capable of quickly changing to light tan. A broad black band extending from chin and throat, across most of the opercle, to upper end of gill opening. A black band extending dorsally from pectoral fin axil to upper end of gill opening. Lips blackish. A transverse white band on chin adjacent to lower lip, and another in black area on throat. Caudal spine socket broadly edged with black. Caudal fin brown with the pure white margin. Juveniles mimic the angelfish Centropyge eibli.
 


Size:

Maturity: Lm unknown. Range unknown. Max length: 25.0 cm TL.


Habitat and Ecology:

Occurs in shallow lagoon and seaward reefs, in areas of mixed coral, rock or sand (depth 2-30m), with an apparent preference for deeper and more sheltered waters, frequently over sand and rubble bottoms. It is classified as a detritivore. Juveniles of this species resemble Centropyge eibli. 


Fishery Status:

This species is not protected or subject to fishery regulations. It is caught in the fish trap fishery. Its relative abundance in the catch is hard to assess due to its general similarity to A. nigrofuscus and C. binotatus. 


Notes:
References:

Abesamis, R. et al 2012. Acanthurus tristis. The IUCN Red List 2012: e.T177998A1516342. http://dx.doi.org/10.2305/IUCN.UK.2012.RLTS.T177998A1516342.en. (09/06/19).

Froese, R. & D. Pauly. Eds. 2019. FishBase. https://www.fishbase.se/summary/12782# (09/06/19).

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


Citation:

Upload your videos
Share this post

There are no comments

Leave a Reply

Your email address will not be published. Required fields are marked *

Start typing and press Enter to search

Search
Generic filters
Exact matches only
Filter by Custom Post Type
Shopping Cart

No products in the cart.