Acanthurus nigroris Valenciennes, 1835

Bluelined surgeonfish

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

Classification	Actinopterygii \| Perciformes \| Acanthuridae \| Acanthurinae
Synonyms	Acanthurus bipunctatus, Acanthurus nigros, Hepatus atramentatus, ... more
Common names	Ma, 暗刺尾鱼, Ponepone, ... more

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Acanthurus nigroris

Picture by Randall, J.E.

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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 : 25.0 cm TL male/unsexed; (Ref. 2334)

Environment

Reef-associated; marine; depth range 1 - 90 m (Ref. 1602)

Climate / Range

Tropical; 28°N - 24°S, 54°E - 139°W

Indo-Pacific: Aldabra and Seychelles to the Hawaiian, Marquesan and Tuamoto Islands; throughout Micronesia.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 9; Dorsal soft rays (total): 24 - 27; Anal spines: 3; Anal soft rays: 23 - 25. Color drab dark brown; spots on body located at the rear base of dorsal and anal fins. Black spot at rear base of dorsal fin not large, its greatest width more than 2 times in eye diameter. White posterior margin of caudal fin very narrow, its width less than 4 times in pupil diameter. No definite black margin around groove of peduncular spine. Body depth 1.8 to 2 times in SL. Maximum standard length about 20 cm (Ref 9808).

Inhabits clear lagoon and seaward reefs; often in areas with mixed coral, pavement, rubble and sand substrates (Ref. 1602). Benthopelagic (Ref. 58302). Occurs singly or in small groups (Ref. 9710). Feeds on filamentous algae, diatoms and fine algal film of compacted sand (Ref. 1602). Relatively uncommon throughout Micronesia; rare on Great Barrier Reef.


IUCN Red List Status (Ref. 84930)	Threat to humans
Not Evaluated	Harmless

Human uses
Aquarium: commercial


More information
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