Abstract

Upper Clark Fork (above Milltown Reservoir)

The mainstem fishery is well below its potential. It's overriding problem is the multiple impacts of mining-everything from instream contamination to streambanks destabilized by their inability to support adequate riparian vegetation. The impacts of metals pollution are exacerbated by dewatering, streambank grazing, channelization and excess nutrient loading. While some of the tributaries support good populations of westslope cutthroat and bull trout, the mainstem population is almost entirely metal-tolerant brown trout.

Start Date

14-4-2000 12:00 AM

End Date

14-4-2000 12:00 AM

Document Type

Poster

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Apr 14th, 12:00 AM Apr 14th, 12:00 AM

Exotic and Native Species Management

Upper Clark Fork (above Milltown Reservoir)

The mainstem fishery is well below its potential. It's overriding problem is the multiple impacts of mining-everything from instream contamination to streambanks destabilized by their inability to support adequate riparian vegetation. The impacts of metals pollution are exacerbated by dewatering, streambank grazing, channelization and excess nutrient loading. While some of the tributaries support good populations of westslope cutthroat and bull trout, the mainstem population is almost entirely metal-tolerant brown trout.