HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsNueces roundnose minnow Nueces roundnose minnow (Dionda serena) Scientific name: Dionda serena Girard, 1856 The Nueces roundnose minnow (Dionda serena) is a freshwater fish of the family Cyprinidae. Native range: North America, United States. Species factsScientific nameDionda serenaFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; pelagicClimateSubtropicalDistributionNorth America: United States.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