MTPR

yellowstone cutthroat trout

Westslope cutthroat trout.
Montana Fish, Wildlife & Parks

For the first time, Glacier National Park is attempting to eradicate non-native trout species and restore native westslope cutthroat trout. The project on the west side of the park specifically aims to preserve genetically pure westslope populations.

Yellowstone River, MT
Wormwould (CC-BY-NC-2)

A microscopic parasite killing tens of thousands of fish forced state wildlife officials to close a portion of the Yellowstone River Friday morning.

Montana Fish, Wildlife and Parks closed about 180 miles of the Yellowstone River downstream from Yellowstone National Park without a timeline for reopening. The closure could last months.

Man fishing in the Yellowstone River.
Flickr user: Mirrur Image (CC-BY-NC)

Montana Fish, Wildlife and Parks this morning closed an approximately 180-mile stretch of the Yellowstone River, and nearby tributaries, due to what it’s calling an “unprecedented” fish kill.

The agency estimates that tens of thousands of fish have died this week from a parasite that causes kidney disease. Most of those are mountain whitefish, but there have been reports of dead rainbow and Yellowstone cutthroat trout.