- Photo. (c) 2019 John Nevill.
Dorsal spines: 9; Dorsal soft rays: 27-30; Anal spines: 3; Anal soft rays: 25-28.
Back and flanks yellow with black-edged pale blue stripes that continue obliquely onto head. `Stomach grey-white. Caudal fin strongly lunate, yellow base with two dark-edged blue vertical lines. Remainder of fin dark grey-black (mainly yellow in juveniles) with narrow blue margin and a curved white line in middle of fin that continues as inner margin of caudal lobes. Venomous peduncle spine. Pectoral fins pale with dusky rays; pelvic fins light yellowish brown with black outer margin.
Maturity: Lm 18cm TL. Range unknown. Max Length: 38.0 cm TL
Habitat and Ecology:
A territorial species which is common in surge zones of exposed seaward reefs or rocky substrata between 3-40m depth. The large male controls well-defined feeding territories and harems of females. Grazes algal turf but also feeds on small crustaceans. Juvenile solitary and secretive on shallow rubble habitats. Form spawning aggregations, but spawn in pairs.
This species is not protected or subject to fishery regulations. It is caught in the fish trap fishery, but is an uncommon component of the catch.
Froese, R. and D. Pauly. Eds. 2018. FishBase. www.fishbase.org, https://www.fishbase.de/summary/acanthurus-lineatus (12/10/18)
Nevill, J. (2013). A Species Identification Guide for Commonly Caught Fish in the Seychelles Near-Shore Arisanal Fishery. GOS/UNDP/GEF.
Randall, J.E. (2001). Surgeonfishes of Hawaii and the World. ISBN: 1-56647-561-9
Nevill, J.E.G. & Mason-Parker, C. (2019). Acanthurus lineatus, Lined surgeonfish. www.seatizens.sc.