Abigail Lewis and Ryan Kevelerine (IMAGE) Virginia Tech Caption (From left) Abigail Lewis, Ph.D. candidate in biological sciences, and Ryan Kevelerine '23 are collecting water samples in the Falling Creek Reservoir in Roanoke. Credit Courtesy Virginia Tech Usage Restrictions Courtesy Virginia Tech License Original content 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.