Fin's Fish Guide
The Blue banded surgeonfish (Acanthurus lineatus) is a saltwater fish of the family Acanthuridae that grows up to 38 cm.
Description
The lined surgeonfish is a reef fish of the family Acanthuridae widely distributed across the Indo-Pacific. The species has a deep, laterally compressed body with striking blue longitudinal stripes on a yellow-orange ground and reaches about 38 cm. On each side of the tail base it bears a sharp, venomous spine resembling a scalpel. It is a territorial, diurnal grazer feeding on algae, supplemented with crustaceans; large males defend feeding territories with a harem. The fish is almost continually on the move in the turbulent surge of exposed reefs and can become very old.
Frequently asked questions
How do you recognise the Blue banded surgeonfish?
The Blue banded surgeonfish has a flattened, disc-shaped body, is mainly multicoloured and shows a horizontal stripes pattern. Sharp, venomous spine ('scalpel') on either side of the caudal peduncle; territorial with a harem. 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 Blue banded surgeonfish live?
The Blue banded surgeonfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-Pacific, from East Africa to the central Pacific.
How big does the Blue banded surgeonfish get?
The Blue banded surgeonfish grows to a maximum of about 38 cm. On average the species is around 25 cm.
Is the Blue banded surgeonfish dangerous to humans?
The Blue banded surgeonfish is venomous — handle spines with care and seek medical help after a sting if needed. Be careful of the sharp spines at the tail base: they can cause deep, painful and mildly venomous cuts. Clean the wound, immerse it in water as hot as can be tolerated (about 45 °C) to ease the venom, and seek medical help in case of severe pain or infection.
Is the Blue banded surgeonfish edible?
Yes, the Blue banded surgeonfish is commonly eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Acanthurus
More from the family Acanthuridae
Want the complete picture on the Blue banded surgeonfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Blue banded surgeonfish is one of 12,519 species in the app.