Pump Maintenance (IMAGE) University of Georgia Caption David Manning, a University of Georgia doctoral student, and John Kominoski, a former UGA postdoctoral researcher who is now an assistant professor at Florida International University, perform maintenance on the pump used to add nutrients to one of the streams in their experiment. Credit Jon Benstead/University of Alabama Usage Restrictions None License Licensed 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.