HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsEmerald shiner Emerald shiner (Notropis atherinoides) Scientific name: Notropis atherinoides Rafinesque, 1818 The Emerald shiner (Notropis atherinoides) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 31°C (88°F). Native range: North America, widely distributed throughout Canada and south to Virginia and Texas, USA. Emerald shiner care at a glanceTemperature31°C (88°F) BiologyAdults inhabit lakes and pools and runs of medium to large rivers. Most common in clear water over sand or gravel. Form schools. Move to the surface at dusk to feed on microcrustaceans, midge larvae, and algae; descends to deeper waters at daybreak. Are preyed upon by birds (gulls, terns, mergansers, cormorants) and fishes. Oviparous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNotropis atherinoidesFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Common length8.6EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: widely distributed throughout Canada and south to Virginia and Texas, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; bait: usuallyResilienceHigh, minimum population doubling time less than 15 months (tm=1; K=0.87; tmax=4; Fec=2,990) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026