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Setting up your tank

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Whitemargin unicornfish (Naso annulatus) fish species and information / pictures of Whitemargin unicornfish - Naso annulatus

Whitemargin unicornfish (Naso annulatus) fish species information

Scientific Name
Naso annulatus

Common Name
Whitemargin unicornfish

Biology
Dorsal spines (total): 5; Dorsal soft rays (total): 28-29; Anal spines: 2; Anal soft rays: 27 - 28. Plain brown or olivaceous in color, paler below; subadults with black caudal rays, narrow margins and white caudal filaments; pectoral fins with white distal margins (Ref. 3145).

Classification

Classified By

Quoy & Gaimard, 1825

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Surgeonfishes, tangs, unicornfishes (Acanthuridae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: East Africa, including the Mascarene Islands (Ref. 37792) to the Hawaiian, Marquesan, and Tuamoto islands, north to southern Japan, south to Lord Howe Island.

Range

32°N - 32°S

Environment

Climate

Tropical

Water Temperature From

24 °C

Water Temperature To

28 °C

Depth From - meters

1 m

Depth To - meters

60 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 1 - 60 m (Ref. 27115), usually 25 - 60 m (Ref. 27115)

Trophic Level

2.12 s.e. 0.09 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

100.0 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

Moderate to high vulnerability (45 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (K=0.213; Tmax=23)

Threat To Humans

Reports of ciguatera poisoning (Ref. 30298)

IUCN Red List Status

Not Evaluated