Estimated read time: Less than a minute
This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in its archived form does not constitute a republication of the story.
JACKSON, Wyo. (AP) — Yellowstone National Park biologists have announced plans to release toxins into a river to remove exotic fish.
The Jackson Hole News & Guide reported Friday that the poisons are expected to be discharged Monday into the upper Gibbon River drainage in northwest Wyoming.
Park officials say the project targets rainbow trout and brook trout native to the Yellowstone River watershed, but not to the upper Gibbon ecosystem.
The region is expected to remain closed until Sept. 13.
Park officials say about 110 miles (177 kilometers) of stream and seeps could be poisoned, and the treatment could be repeated in 2020 to ensure the fish are wiped out.
Officials say this step would enable the reintroduction of westslope cutthroat trout and Arctic grayling planned for 2020 or 2021.
Copyright © The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
