HomeFish encyclopediaRay-finned fishesCharacinsCharacinsSlender piranha Slender piranha (Serrasalmus elongatus) Scientific name: Serrasalmus elongatus Kner, 1858 The Slender piranha (Serrasalmus elongatus) is a freshwater fish of the family Characidae. Native range: South America, Amazon and Orinoco River basins. Species factsScientific nameSerrasalmus elongatusFamilyCharacidae (Characins)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length30.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionSouth America: Amazon and Orinoco River basins.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, 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