Phytoplankton from the Southern Ocean. (IMAGE) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Caption Phytoplankton from the Southern Ocean. Credit Jeff McQuaid. Usage Restrictions No restrictions. License Public Domain 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.