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Scientists: Invasive Yellowstone trout in decline

By Matthew Brown
Published May 6, 2014 10:24pm ET
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Scientists: Invasive Yellowstone trout in decline
In this photo taken on 2003 and released by the National Park Service. Brian Ertel, a fisheries biologist at Yellowstone National Park, holds a netted lake trout caught from Yellowstone Lake in Wyoming. Scientists say they voracious species of trout that entered Yellowstone Lake and decimated its native trout population appears to be in decline following efforts to kill off the invading fish. (AP Photot/National Park Service) | AP

BILLINGS, Mont. (AP) — A voracious species of trout that decimated a native trout population in Yellowstone National Park shows signs of decline following a costly and protracted effort to kill off the invading fish, government scientists and a conservation group said Tuesday.

Non-native lake trout were first discovered in Yellowstone Lake in 1994, after being illegally introduced to the 132-square-mile body of water that attracts visitors from around the world.

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