Scientific Name
Acanthurus bariene

Common Name
Black-spot surgeonfish

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 26-28; Anal spines: 3; Anal soft rays: 25 - 26. Body brown; a round black spot at upper gill opening; dark blue line just below the bases of dorsal and anal fins. Dorsal fin with soft part having longer base than spinous part. Minute scales. Gill rakers in anterior row 19-23, posterior 22-24. A dark brown area surrounding the caudal spine. Large males develop highly convex foreheads that extend beyond the mouth (Ref. 1602).

Classification

Classified By

Lesson, 1831

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Surgeonfishes, tangs, unicornfishes (Acanthuridae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Mozambique (Ref. 1920) and Maldives to the western Pacific.

Range

30°N - 24°S

Environment

Climate

Tropical

Water Temperature From

23 °C

Water Temperature To

29 °C

Depth From - meters

6 m

Depth To - meters

50 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 6 - 50 m (Ref. 37816), usually 30 - ? m (Ref. 9710)

Trophic Level

2 s.e. 0.00 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

50.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; aquarium: commercial

Vulnerability

Moderate vulnerability (37 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated