<i>Thalassiosira</i> (IMAGE) U.S. National Science Foundation Caption The chain-forming diatom Thalassiosira, seen under a microscope; it's a common bloom phytoplankton. Credit Tatiana Rynearson 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.