Assertion: lake trout | /r/Causes | drastic declines
Facets:
value: in westslope cutthroat trout populations
type: OTHER
Source sentences:
text: Introductions of non-native kokanee salmon (Oncorhynchus nerka), lake trout (Salvelinus namaycush) and lake whitefish (Coregonus clupeaformis) into Flathead Lake and the Flathead River system caused drastic declines in westslope cutthroat trout populations.