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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…
Diet, Naming & Behavior and habitat
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pikeminnow northern columbia salmon river fish ptychocheilus populations oregonensis concern richardson snake least fry diet species family pikeminnows mature consume
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| trout or salmon has led to declining populations in those species | instance of | their diet for the fry of other game fish | 0.80 | text |
| salmonids | instance of | the older pikeminnow are seen to consume larger fish | 0.80 | text |
| perch | instance of | the older pikeminnow are seen to consume larger fish | 0.80 | text |
| sculpins | instance of | the older pikeminnow are seen to consume larger fish | 0.80 | text |
| and suckers | instance of | the older pikeminnow are seen to consume larger fish | 0.80 | text |
| Northern pikeminnow | related to Behavior and habitat | Northern | 0.60 | section |
| Northern pikeminnow | related to Behavior and habitat | Female | 0.60 | section |
| Northern pikeminnow | related to Behavior and habitat | Pikeminnow | 0.60 | section |
| Northern pikeminnow | related to Behavior and habitat | Columbia | 0.60 | section |
| Northern pikeminnow | related to Behavior and habitat | Snake Rivers | 0.60 | section |
| Northern pikeminnow | related to Behavior and habitat | Their | 0.60 | section |
| Northern pikeminnow | related to Behavior and habitat | Columbia River | 0.60 | section |
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