Acanthurus nigrofuscus (Forsskål, 1775)

Brown surgeonfish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Acanthuridae \| Acanthurinae
Synonyms	Chaetodon nigrofuscus, Acanthurus matoides, Acanthurus rubropunctatus, ... more
Common names	Dusky surgeonfish, Spot-cheeked surgeonfish, Blackspot surgeonfish, ... more

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Image of Acanthurus nigrofuscus (Brown surgeonfish)

Picture by Randall, J.E.

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Randall, J.E. 1956. (Ref. 1920)
Other references | Biblio | Coordinator : Randall, John E. | Collaborators

Size / Weight / Age

Max length : 21.0 cm TL male/unsexed; (Ref. 30573)

Environment

Reef-associated; marine; depth range 0 - 25 m (Ref. 48637), usually 2 - 25 m (Ref. 27115)

Climate / Range

Tropical; 24°C - 28°C (Ref. 27115); 31°N - 34°S, 3°E - 123°W (Ref. 57242)

Indo-Pacific: Red Sea south to Transkei, South Africa (Ref. 3145) and east to the Hawaiian and Tuamoto islands, north to southern Japan, south to the southern Great Barrier Reef, New Caledonia, and Rapa (Austral Islands).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 9; Dorsal soft rays (total): 24 - 27; Anal spines: 3; Anal soft rays: 22 - 24. Brown in color when preserved; with or without fine bluish gray longitudinal lines on body; pale pectoral fins with upper edge narrowly black; pelvic fins brown. Lips blackish brown; median upper teeth tend to be pointed. Dorsal fin base with a prominent black spot larger than 1/2 eye diameter; a smaller spot on base of anal fin. Groove of caudal spine encircled with a narrow black margin. Gill rakers on anterior row:20-24; on posterior row:18-23.

Found on hard substrates of shallow lagoon and seaward reefs from the lower surge zone to a depth of more than 15 m (Ref. 27825). Benthopelagic (Ref. 58302). Feed on filamentous algae. Form spawning aggregations (Ref. 27825, 48637). Adults usually in small groups, but form large schools in some oceanic locations. Juveniles are often seen in mixed species aggregations (Ref. 48637). Species at the bottom of the 'pecking order' among surgeon fishes, and as a result employs the strategy of feeding in large schools that overwhelm the territorial defenses of other herbivores (Ref. 1602). Caught with nets (Ref. 30573). Can be eaten both raw and cooked (Ref. 7364). Maximum depth reported at 25m (Ref. 027115)


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Reports of ciguatera poisoning (Ref. 31637)

Human uses
Fisheries: commercial; aquarium: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Biogeographic modelling \| Bio-Quiz \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| Point map

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (K=1.00-1.72; tm=2)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low to moderate vulnerability (27 of 100)	Medium

Entered by Capuli, Estelita Emily

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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