Acanthurus triostegus (Linnaeus, 1758)

Convict surgeonfish

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

Classification	Actinopterygii \| Perciformes \| Acanthuridae \| Acanthurinae
Synonyms	Chaetodon triostegus, Acanthurus triostegus triostegus, Hepatus triostegus, ... more
Common names	Convict surgeon, Convict tang, Chirurgien zèbre, ... more

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Image of Acanthurus triostegus (Convict 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 : 27.0 cm TL male/unsexed; (Ref. 3145); common length : 17.0 cm TL male/unsexed; (Ref. 9267)

Environment

Reef-associated; marine; depth range 0 - 90 m (Ref. 9710), usually 0 - 90 m (Ref. 27115)

Climate / Range

Tropical; 24°C - 26°C (Ref. 27115); 26°N - 36°S, 25°E - 85°W (Ref. 57245)

Indo-Pacific: throughout the region except for the seas around the Arabian Peninsula. Eastern Pacific: lower Gulf of California to Panama, including the Revillagigedo, Cocos, Clipperton, and Galapagos islands.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 9; Dorsal soft rays (total): 22 - 26; Anal spines: 3; Anal soft rays: 19 - 22. Body olivaceous gray, with 4 vertical stripes (1 stripe on head across the yellow eye; 1 on caudal peduncle); shading to white ventrally, often with a sharp line of demarcation. Sharp, forward-pointing, erectile spine on each side of caudal peduncle which folds down into a groove. Scales minute. Teeth with denticulations on sides and top. Gill rakers 18-22 in anterior row, 19-24 in posterior row.

Occur in lagoon and seaward reefs with hard substrate; young abundant in tide pools (Ref. 3145, 48637). Benthopelagic (Ref. 58302). Often feeding near freshwater run-offs where certain algae grow on rocks that are grazed (Ref. 48637). Occasionally form schools; feed on filamentous algae in large aggregations. During spawning, clouds of eggs and sperm are preyed upon by eagle rays which are often present during spawning. Form spawning aggregations (Ref. 27825). Size of metamorphosis from post-larva stage to juvenile is 3.2 cm (Ref. 9267). Utilized as a food fish (Ref. 7364). Minimum depth reported taken from Ref. 27115.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Reports of ciguatera poisoning (Ref. 4690)

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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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.35; assuming tm=2)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (16 of 100)	Medium

Entered by Luna, Susan M.

Modified by Ortañez, Auda Kareen

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