Indian Ocean mimic surgeonfish (Acanthurus tristis) fish species and information / pictures of Indian Ocean mimic surgeonfish - Acanthurus tristis

Indian Ocean mimic surgeonfish (Acanthurus tristis) fish species information

Scientific Name
Acanthurus tristis

Common Name
Indian Ocean mimic surgeonfish

Biology
Dorsal spines (total): 8; Dorsal soft rays (total): 23-33; Anal soft rays: 22 - 29. Margin of caudal fin narrow and white. No orange area behind gill opening and extending ventrally behind base of pectoral fins (juveniles mimic the angelfish Centropyge eibli) (Ref 9808).

Classification

Classified By

Randall, 1993

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Surgeonfishes, tangs, unicornfishes (Acanthuridae)

Distribution

Region

Indian Ocean

Distribution

Indian Ocean: Bay of Bengal (Ref. 8940) and the Andaman Sea west to Maldives and Chagos Archipelago, and east to islands of southern Indonesia at least to Bali.

Range

24°N - 9°S, 71°E - 116°E

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

2 m

Depth To - meters

26 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 2 - 26 m (Ref. 9710)

Trophic Level

2.21 s.e. 0.00 Based on size and trophs of closest relatives

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

25.0 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

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