Gel-filled Pore (IMAGE) University of Washington Caption Gel-like mucus (stained blue) covers individual sea-ice algae clustered in a tiny box-shaped pore in the ice and fills the channel from the pore to the ocean. Credit Christopher Krembs Usage Restrictions Image credit required 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.