Ice algae Microscopic (IMAGE) American Geophysical Union Caption Microphotographs of ice algae (mostly the species Ancylonema nordenskioldii). Credit Marian Yallop Usage Restrictions Credit 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.