Oceanographic Research Cruise (IMAGE) University of Washington Caption Co-lead author Kelsy Cain fills a bottle with seawater off the coast of Oregon as an undergraduate aboard the RV Roger Revelle during a research cruise in July 2017. Cain diluted the water several times and then isolated a new strain of SAR11 bacteria that became the focus of the new paper. Credit Mitch Elend/University of Washington Usage Restrictions With credit 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.