Hydrochemical Influences on the Fishery within the Phosphate Mining Area of Eastern Idaho

摘要

Hydrochemical analysis of selected streams in the upper Blackfoot River drainage showed waters in these streams were in a near-natural state, with possible modification from surrounding land uses. Stream hydrochemistry and physical condition of fish indicated the fishery was in good condition. No influences from present phosphate mining were found that threatened fish health or survival. Hydrochemically, the Blackfoot system is capable of producing a good cutthroat trout fishery, but high levels of nutrients probably restrict optimum cutthroat trout populations.