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Black doctorfish (Acanthurus chirurgus) — Acanthuridae

Black doctorfish

Acanthurus chirurgus
Family: Acanthuridae
LC · Least Concern

The Black doctorfish (Acanthurus chirurgus) is a saltwater fish of the family Acanthuridae that grows up to 39 cm.

Length
39 cm
Water
Saltwater
Depth
2.0–25.0 m
Diet
Herbivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Can cause injury
Edibility
Rarely eaten

Description

The doctorfish (Acanthurus chirurgus) is a surgeonfish of the family Acanthuridae from the Atlantic. The species has a deep, laterally compressed, brownish body with about ten narrow, dark vertical bands and reaches about 39 cm. It inhabits shallow reefs and rocky areas and occurs in loose aggregations. As a mainly diurnal algae-eater it grazes algae and ingests sand in the process. On each side of the caudal peduncle the species bears a sharp, scalpel-like spine, from which the group takes its name; with it the fish can cause painful cuts if handled carelessly. The larvae are planktonic.

Frequently asked questions

How do you recognise the Black doctorfish?

The Black doctorfish has a flattened, disc-shaped body, is mainly brown and shows a vertical stripes pattern.

Where does the Black doctorfish live?

The Black doctorfish lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Black doctorfish get?

The Black doctorfish grows to a maximum of about 39 cm. On average the species is around 35 cm.

Is the Black doctorfish dangerous to humans?

The Black doctorfish can cause injury; handle it with care.

Is the Black doctorfish edible?

The Black doctorfish is rarely eaten.

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All data

Identification

Dutch name
Doktersvis sourced
English name
Black doctorfish verified
Scientific name
Acanthurus chirurgus
Family
Acanthuridae
Other names
Doctorfish verified

Appearance

Size class
Medium verified
Max length (cm)
39.0 verified
Average length (cm)
35.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Vertical bars inferred
Tail shape
Crescent (lunate) inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
2.0 verified
Max depth (m)
25.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Herbivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten sourced
Fishing method
Vissen met natuurlijk aas (vis, garnaal, worm) of kunstaas dicht bij rif- en rotsstructuren. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Can cause injury sourced

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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