<em>Chaetoceros atlanticus</em> (IMAGE) University of Copenhagen - Faculty of Science Caption Small differences in salinity and temperature lead to the formation of weak and ephemeral fronts with different phytoplankton communities on each side. Researchers found that several species of the genus Chaetoceros (shown on photo) constituted the majority of the biomass on one side of the front but were virtually absent on the other side. Credit Niels Daugbjerg Usage Restrictions only when credited 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.