Phytoplankton Bloom in Iron Limitation Environment of the Amundsen Polynya, Southern Ocean

Abstract

We have conducted three times intensive antarctic cruises in the Amundsen Sea. Amundsen polynya is one of the most productive Antarctic coastal polynya, and high chlorophylls were concentrated in polynya center rather than in the edge of polynya both in early and late summer. To examine phytoplankton dynamics in severely iron limited environment, the phytoplankton physiological parameters were measured by FIRe system.