Cellular inorganic carbon fluxes in the coccolithophore Emiliania huxleyi and its relevance for marine carbon cycling.

This thesis investigates several processes relevant for carboncycling on various time scales.The publications deal with processes on time scales ofmillions of years (climate change in the Pleistocene), hundreds andtens of thousands of years (impact of calcification on atmospheric CO2 atglacial/interglacial change), hours to minutes (CCM activity ofphytoplankton) to seconds and micro seconds (kinetics in the carbonate system).