HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsBluenose shiner Bluenose shiner (Pteronotropis welaka) Scientific name: Pteronotropis welaka Evermann & Kendall, 1898 The Bluenose shiner (Pteronotropis welaka) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 6–20°C (43–68°F). Bluenose shiner care at a glanceTemperature6–20°C (43–68°F) BiologyInhabits backwaters and quiet vegetated pools of creeks and small to medium rivers, over mud and sand. Usually found schooling in fairly deep water (of 1-2 m depth).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePteronotropis welakaFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length6.0EnvironmentFreshwater;; pH range: 6.5 - ?; dH range: ? - 10 benthopelagicClimateSubtropicalDistributionNorth America: St. Johns River drainage, Florida; in the Gulf Coast drainages (mostly below Fall Line) from Apalachicola River, Georgia and Florida to Pearl River, Mississippi and Louisiana, USA.Conservation status (IUCN)Data deficient (DD)Threat 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