Acanthurus nigrofuscus (Forsskal, 1775)

Acanthurus nigrofuscus
Acanthurus nigrofuscus
Photographer: 
Ian Shaw
Date: 
Friday, 11 March 2016
Location: 
N W Solitary Island
Depth: 
22m
Acanthurus nigrofuscus
Acanthurus nigrofuscus
Photographer: 
Ian Shaw
Date: 
Wednesday, 31 October 2012
Location: 
N W Solitary Island
Depth: 
11m
Acanthurus nigrofuscus
Acanthurus nigrofuscus
Photographer: 
Ian Shaw
Date: 
Saturday, 6 May 2017
Location: 
Nth Solitary Island
Depth: 
12m
Common name: Dusky Surgeonfish
Distribution:

Common in the Solitary Islands Marine Park. Widespread tropical Indo-Pacific, Red Sea to South Africa, east to Hawaiian Islands, north to southern Japan, south to Australia, New Caledonia and the Austral Islands. In Australia, recorded from around Exmouth in Western Australia, across the tropical north to Queensland and south to central New South Wales. Also at Lord Howe and Norfolk Islands.

Ecological Notes:

Shallow reefs and slopes to a depth of 15 to 20 metres. Usually solitary or in pairs.

Additional Notes:

Best identified by dark spots posteriorly at dorsal and anal fin bases and small orange spots on face, thin electric blue fin margins. Small species, feeds on zooplankton in the water column or grazes on algae. Similar looking Ctenochaetus binotatus distinguished by blue iris. Grows to 21cms.

References:

R. Stuart-Smith, G. Edgar, A. Green, I. Shaw, Tropical Marine Fishes of Australia. Reed New Holland Publishers, 2015. p.426.

FishBase. Froese, R. and D. Pauly. Editors. 2018. World Wide Web electronic publication. https://fishbase.ca/summary/Acanthurus-nigrofuscus.html. Accessed 23/05/18.