Yellowstone to put toxin in Gibbon River to remove exotic fish

Yellowstone National Park fisheries biologists will soon discharge the fish poison rotenone into much of the Upper Gibbon River drainage, which will be off-limits for part of September.

The project, which runs Monday until Sept. 13, is designed to scrub nonnative rainbow trout and brook trout out of the watershed, a step that would enable the reintroduction of westslope cutthroat trout and Arctic grayling.

An estimated 111 miles of stream and seeps will be poisoned, according to the park’s native fish conservation plan.

LINK (via: Jackson Hole News & Guide)

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