National Park Service biologist Philip Doepke with lake trout netted from Yellowstone Lake. This material relates to a paper that appeared in the March 20th, 2019, issue of Science Advances, published by AAAS. The paper, by T.M. Koel at Yellowstone Center for Resources in Yellowstone National Park, WY, and colleagues was titled, "Predatory fish invasion induces within and across ecosystem effects in Yellowstone National Park."
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