Polar Ice-Floe (IMAGE) University of East Anglia Caption Polar ice-floes contain some of the most important ocean photosynthetic microbes on the planet. Credit James Raymond Usage Restrictions Only to be used in relation to this press release 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.