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Doctorfish (Acanthurus chirurgus)

Photo of Doctorfish (Acanthurus chirurgus)

Key facts

Scientific name
Acanthurus chirurgus
Common name
Doctorfish
Category
Fish
Family
Acanthuridae
Genus
Acanthurus
Size
20–39 cm
Depth
2–40 m
IUCN status
Least concern (LC)
Danger level
Harmless
Habitats
reef
Behaviours
schooling, herbivorous
Ocean zones
Caribbean, Eastern Pacific

Description

Acanthurus chirurgus reaches 39 cm. Oval bluish-grey to purple body marked with 10 to 12 fine dark vertical lines. Razor-sharp retractable lateral blade near the caudal (hence surgeonfish). Forms schools on coral reefs, algae grazer. From 2 to 40 m. Tropical western Atlantic. Never grasp: the blade inflicts deep cuts.

Photo of Doctorfish

Photo of Doctorfish (Acanthurus chirurgus)Photo of Doctorfish (Acanthurus chirurgus)

Frequently asked questions

How big is the Doctorfish?
Doctorfish (Acanthurus chirurgus) reaches 20–39 cm in length.
At what depth can you find the Doctorfish?
Doctorfish is found between 2–40 m deep.
Is the Doctorfish dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Doctorfish?
IUCN status: Least concern (LC).
Where can you find the Doctorfish?
Found in: Caribbean, Eastern Pacific.

Other species in the genus Acanthurus

  • Acanthurus coeruleus - Blue tang surgeonfish
  • Acanthurus tractus - Atlantic blue tang
  • Acanthurus sohal - Sohal surgeonfish
  • Acanthurus achilles - Achilles Surgeonfish
  • Acanthurus tennentii - Tennent's Surgeonfish
  • Acanthurus auranticavus - Orange-mouth Surgeonfish

Other species in the family Acanthuridae

  • Naso lituratus - Orangespine unicornfish
  • Zebrasoma xanthurum - Yellowtail tang
  • Zebrasoma desjardinii - Sailfin tang
  • Naso brevirostris - Short-nosed unicornfish
  • Paracanthurus hepatus - Blue tang
  • Zebrasoma flavescens - Yellow tang

Sources

  • Taxonomy: WoRMS (AphiaID 159580)
  • Photos: iNaturalist (CC BY-NC)
  • Distribution: GBIF (taxonKey 5209174)
  • Conservation: IUCN Red List
  • Encyclopedia: Wikipedia