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Head-band surgeonfish (Acanthurus leucopareius) — Acanthuridae

Head-band surgeonfish

Acanthurus leucopareius
Family: Acanthuridae
LC · Least Concern

The Head-band surgeonfish (Acanthurus leucopareius) is a saltwater fish of the family Acanthuridae that grows up to 25 cm.

Length
25 cm
Water
Saltwater
Depth
1.0–85.0 m
Diet
Herbivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Can cause injury
Range
Western and central Pacific
Edibility
Commonly eaten

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Description

The whitebar surgeonfish is a surgeonfish from the western and central Pacific, including around the Hawaiian Islands. The species grows to about 25 cm and has an oval, brownish-grey body with a conspicuous white bar behind the eye. On either side of the tail base it carries a sharp, scalpel-like spine that can inflict serious cuts. As a grazer it lives in the turbulent surge zone and eats filamentous algae. The fish is a local food fish. The IUCN assesses the species as Least Concern (LC).

Frequently asked questions

How do you recognise the Head-band surgeonfish?

The Head-band surgeonfish has a flattened, disc-shaped body, is mainly brown and shows a vertical stripes pattern. White band behind the eye; sharp scalpel-shaped tail spine Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas.

Where does the Head-band surgeonfish live?

The Head-band surgeonfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western and central Pacific

How big does the Head-band surgeonfish get?

The Head-band surgeonfish grows to a maximum of about 25 cm.

Is the Head-band surgeonfish dangerous to humans?

The Head-band surgeonfish can cause injury; handle it with care. The sharp caudal spine can cause deep cuts; never handle this fish with bare hands. Clean any cut thoroughly, stop the bleeding, and seek medical help for a deep wound.

Is the Head-band surgeonfish edible?

Yes, the Head-band surgeonfish is commonly eaten.

More photos

Head-band surgeonfish (Acanthurus leucopareius) — Acanthuridae — 2
iNaturalist ((c) Harry Rosenthal, some rights reserved (CC BY-NC))
Head-band surgeonfish (Acanthurus leucopareius) — Acanthuridae — 3
Andrew Plant (CC BY-NC 4.0) via GBIF — iNaturalist
Head-band surgeonfish (Acanthurus leucopareius) — Acanthuridae — 4
Wikimedia Commons — NPS Bryan Harry (Public domain)
Head-band surgeonfish (Acanthurus leucopareius) — Acanthuridae — 5
David R (CC BY-NC 4.0) via GBIF — iNaturalist
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All data

Identification

English name
Head-band surgeonfish verified
Scientific name
Acanthurus leucopareius
Family
Acanthuridae
Other names
Whitebar surgeonfish verified

Appearance

Size class
Medium verified
Max length (cm)
25.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown sourced
Pattern
Vertical bars sourced
Tail shape
Crescent (lunate) inferred
Mouth position
Inferior (downward) sourced
Lips
Thick / fleshy sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
85.0 verified
Natural range
Western and central Pacific verified
Origin
Native verified

Behaviour & biology

Diet
Herbivore sourced
Diet (detail)
Filamentous algae inferred
Social behaviour
Small groups sourced
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
Seasonality
Grazing surf-dweller; present year-round. sourced
Special features
White band behind the eye; sharp scalpel-shaped tail spine Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas. verified

For anglers

Edibility
Commonly eaten sourced
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Can cause injury verified
First aid
The sharp caudal spine can cause deep cuts; never handle this fish with bare hands. Clean any cut thoroughly, stop the bleeding, and seek medical help for a deep wound. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Acanthurus

More from the family Acanthuridae

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