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Blue surgeonfish (Acanthurus leucosternon) — Acanthuridae

Blue surgeonfish

Acanthurus leucosternon
Family: Acanthuridae
LC · Least Concern

The Blue surgeonfish (Acanthurus leucosternon) is a saltwater fish of the family Acanthuridae that grows up to 54 cm.

Length
54 cm
Water
Saltwater
Depth
0.0–25.0 m
Diet
Herbivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Can cause injury
Edibility
Rarely eaten

Description

The powderblue surgeonfish is a beautifully coloured surgeonfish (Acanthuridae) from the Indian Ocean. The species has a powder-blue body, a black head with a white throat and a yellow dorsal fin, and reaches a few decimetres. It inhabits shallow, clear coral reefs along coasts and islands, especially reef flats and upper seaward slopes, where it occurs singly or in large feeding schools. It feeds on benthic algae. On each side of the tail base it bears a sharp, scalpel-like spine that can cause cuts when handled. The species is prized in the marine aquarium trade but difficult to keep.

Frequently asked questions

How do you recognise the Blue surgeonfish?

The Blue surgeonfish has a flattened, disc-shaped body, is mainly blue and shows a plain pattern.

Where does the Blue surgeonfish live?

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

How big does the Blue surgeonfish get?

The Blue surgeonfish grows to a maximum of about 54 cm. On average the species is around 19 cm.

Is the Blue surgeonfish dangerous to humans?

The Blue surgeonfish can cause injury; handle it with care.

Is the Blue surgeonfish edible?

The Blue surgeonfish is rarely eaten.

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All data

Identification

Dutch name
Poederblauwe doktersvis sourced
English name
Blue surgeonfish verified
Scientific name
Acanthurus leucosternon
Family
Acanthuridae
Other names
Powder blue surgeonfish; Powder blue tang; Powderblue surgeonfish verified

Appearance

Size class
Large verified
Max length (cm)
54.0 verified
Average length (cm)
19.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Blue inferred
Pattern
Plain inferred
Tail shape
Crescent (lunate) inferred
Mouth position
Inferior (downward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

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

Behaviour & biology

Diet
Herbivore sourced
Social behaviour
Schooling 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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