William Cochlan, San Francisco State University (image) San Francisco State University Share Print E-Mail Caption SF State researcher William Cochlan examines phytoplankton cells using an inverted microscope at the University's SF State's Romberg Tiburon Center for Environmental Studies. His latest study finds that nitrogen in ocean waters -- regardless of the source of nitrogen -- fuels the growth of this toxic phytoplankton species. Credit Chris Ikeda/SF State Usage Restrictions None Share Print E-Mail 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.