Halichoeres marginatus (Rüppell, 1835)
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Halichoeres marginatus (Rüppell, 1835)

Genus: ,

Scientific Name: Halichoeres marginatus

English Name: Dusky wrasse

Creole Name:

French Name: Girelle arc-en-ciel

IUCN Red List Status: Least Concern (LC)

Description:

Dorsal spines: 9; Dorsal rays: 13-14; Anal spines: 3; Anal rays: 12-13.

Moderately full-bodied, small wrasse.

Juveniles are blackish to dark brown with bright yellow-white stripes and a large yellow ringed ocelli in the middle of the dorsal fin with a luminescent white spot dorsally either side of it.

Females are (a sometimes reddish) brown with darker narrow stripes along the sides, a black, yellow-edged ocellus on the middle of the dorsal fin and a greenish margin on the caudal fin.

Terminal males orange brown with a blue edged green spot on each scale forming longitudinal lines. Caudal fin greenish yellow with a blue edged orange red crescent containing small blue spots. No ocelli in dorsal fin.


Size:

Maturity: Lm 7cm TL. Range unknown. Max Length: 18cm TL.


Habitat and Ecology:

Inhabit a wide range of shallow reef habitats (depth 0-30m). In Seychelles juveniles can readily be seen sheltering near crevices in shallow coastal rock formations. Feed on a wide variety of small invertebrates as well as fish eggs. Pelagic spawner. Some females change sex after spawning. Solitary or in small groups.


Fishery Status:

This species is not protected or subject to fishery regulations. It does not appear to be caught artisanal fishery, likely being too small to be subject to existing techniques.


Notes:
References:

Bray, D.J. 2018. Halichoeres marginatus in Fishes of Australia, http://136.154.202.208/home/species/2291 (24/03/20).

Choat, J.H. 2010. Halichoeres marginatus. The IUCN Red List 2010: e.T187382A8519431. https://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T187382A8519431.en.  Downloaded on (24/03/20).

Froese, R. and D. Pauly. Eds. 2018. FishBase. Halichoeres marginatus Rüppell, 1835. https://www.fishbase.se/summary/5631 (24/03/20)

Randall, J.E., 1986. Labridae. p. 683-706. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.


Citation:

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