Meticulous Prep (IMAGE) University of Massachusetts Amherst Caption Certified chef and assistant food manager Geoffrey McDonald prepares the whitefish for steaming, with help from study lead researcher Amanda Davis. Credit UMass Amherst 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.