View From Ship (IMAGE) University of Washington Caption The sea ice off West Antarctica, seen here in October 2018, is a dynamic environment that experiences huge annual swings in light level, temperature and salinity, as well as the longer-term shifts of climate change. Algae and other microbes living in and around the sea ice are part of an understudied ecosystem. Credit Hannah Dawson/University of Washington Usage Restrictions With credit License Original 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.