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Displaying items by tag: parasite

This unprecedented kill reveals why we need to keep rivers resilient.

It was the kind of clear late-August day that anglers live for. Yet at the Yellowstone River near Livingston, Montana, not a single oar boat or even a fishing line broke the river’s calm surface. All was still, save for an osprey scavenging the corpses of pale, shimmering whitefish along the gravelly shoreline. A light breeze carried the sweetish smell of aquatic decay.

Earlier this month, the Yellowstone River made national headlines with the news of an unprecedented fish die-off in its usually healthy waters. Starting in mid-August, biologists counted 4,000 dead whitefish floating on the Yellowstone or washed ashore, but they estimate that the true number is in the tens of thousands. As if that wasn’t enough, they’ve recently spotted rainbow trout and Yellowstone cutthroat trout—both economically important species—go belly-up as well.

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