Celia Chen, Dartmouth College (IMAGE) Dartmouth College Caption Dartmouth Research Professor Celia Chen and her collaborators have found that fish tissue is rarely measured for concentrations of both harmful contaminants and healthful nutrients across a range of species and geographic regions. Credit Dartmouth College Usage Restrictions Credit Dartmouth College 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.