Image of Phytoplankton in a Dark Sea (IMAGE) U.S. National Science Foundation Caption This shows phytoplankton in a dark sea; countless numbers drift through the world's oceans. Credit NOAA 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.