Equipment on boat ready for sampling (IMAGE) University of Cambridge Caption To understand what drives chemodiversity, the team reviewed studies of dissolved organic matter in freshwater samples from rivers and lakes across Europe and northern Canada. Credit Jeremy Fonvielle/ University of Cambridge Usage Restrictions With credit 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.