HomeFish encyclopediaRay-finned fishesPerch-like fishSurgeonfishes, tangs, unicornfishesGulf surgeonfish Gulf surgeonfish (Acanthurus randalli) Scientific name: Acanthurus randalli Briggs & Caldwell, 1957 The Gulf surgeonfish (Acanthurus randalli) is a marine fish of the family Acanthuridae. Native range: Western Atlantic, Florida (from Miami to Keys) and northeastern Gulf of Mexico in USA. BiologyInhabits coral reefs and inshore grassy and rocky areas. Forms schools. Mainly herbivorous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAcanthurus randalliFamilyAcanthuridae (Surgeonfishes, tangs, unicornfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length18.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Atlantic: Florida (from Miami to Keys) and northeastern Gulf of Mexico in USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026