Invasion of Lake Trout in Yellowstone Changed Aquatic and Terrestrial Ecosystems (9 of 14) (image) American Association for the Advancement of Science Share Print E-Mail Caption National Park Service gillnetting boat, the Freedom. 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." Credit [Credit: Yellowstone National Park] Usage Restrictions Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.