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Yellowstone Trout to be Poisoned

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Starting today, 20 September, Yellowstone National Park fisheries biologists will poison Elk Creek and its tributaries to kill non-native brook trout so that native cutthroat can be restocked.


Source: Billings Gazette


Brook trout compete with cutthroat trout and often completely displace them and other native fish species. The project will not impact the nearby Yellowstone River.


The fish poison Rotenone will be introduced in small quantities and visitors are advised not to swim in, or drink from, the streams from today through to September 30 and warning signs will be posted at all treated areas.


This year's treatment is the second in a series that is expected to continue over the next one to two years. Treatments will be conducted until brook trout have been completely removed from the streams when park will then reintroduce genetically pure native Yellowstone cutthroat trout. The long-term plan is not only to support native species restoration, but also for these streams to provide a brood stock population of cutthroat for future restoration efforts.


More information on the park's Native Fish Conservation Plan can be found HERE







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Tagged as:

cutthroat, Brook trout, Yellowstone National Park

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