Scientific Name
Acanthurus leucopareius

Common Name
Whitebar surgeonfish

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 25-27; Anal spines: 3; Anal soft rays: 23 - 25. A whitish bar broadly bordered by dark brown from origin of dorsal fin across operculum. Caudal fin without a white posterior margin. Caudal concavity 10.5 to 12 times in SL. Body depth 1.7 to 1.8 times in SL (Ref 9808).

Classification

Classified By

Jenkins, 1903

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Surgeonfishes, tangs, unicornfishes (Acanthuridae)

Distribution

Region

Western Central Pacific

Distribution

Western Central Pacific: primarily anti-equatorial; Mariana Islands, southern Japan, Marcus Islands, and the Hawaiian Islands in the north and New Caledonia, Rapa (Austral Islands), and Tuamoto Islands, Pitcairn group, and Easter Island in the south.

Range

32°N - 28°S

Environment

Climate

Subtropical

Water Temperature From

24 °C

Water Temperature To

28 °C

Depth From - meters

1 m

Depth To - meters

85 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 1 - 85 m (Ref. 1602), usually 1 - 85 m (Ref. 27115)

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

24.0 cm

Common Length

25.0 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: minor commercial; aquarium: commercial

Vulnerability

Low vulnerability (25 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated