Coccolithophore Balch (IMAGE) Bigelow Laboratory for Ocean Sciences Caption Tiny algae called coccolithophores, such as this Discosphaera tubifera, play a major role in the global carbon cycle. New research shows that coccolithophores are mysteriously scarce in one of the most fertile and productive regions of the Atlantic Ocean. Credit William Balch and Colin Fisher/Bigelow Laboratory for Ocean Sciences Usage Restrictions None 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.