Northern pikeminnow
| Northern pikeminnow | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Cypriniformes | 
| Family: | Leuciscidae | 
| Genus: | Ptychocheilus | 
| Species: | P. oregonensis | 
| Binomial name | |
| Ptychocheilus oregonensis (J. Richardson, 1836) | |
| Synonyms | |
The Northern pikeminnow, Columbia River dace or colloquially Squawfish (Ptychocheilus oregonensis) is a large member of the minnow family, Leuciscidae. This predatory freshwater fish is native to northwestern North America, ranging from the Nass River basin to the Columbia River basin. A good deal of concern has been expressed regarding the impact northern pikeminnow populations may have on salmon in Columbia and Snake River impoundments.