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ATKIM: Biodegradability of arctic, terrestrial organic carbon in marine systems

Biodegradability of arctic, terrestrial organic carbon in marine systems (ATKIM)

Due to global climate change a large amount of terrigenous dissolved organic matter (tDOM) is mobilized by melting of permafrost and reaches through the estuaries the marine environment. The bioavailability of tDOM is an important factor for the global carbon cycle but our understanding of its decomposition and bacteria-tDOM interactions is rather poor. In order to investigate the role of abiotic environmental factors and microbial diversity for decomposition of tDOM exported to the sea, an interdisciplinary network was created which consists of a team of marine biologists, microbiologists, marine chemists and bioinformaticians from Leibniz and University institutes. Field and laboratory experiments, mostly performed in the Baltic Sea, and  involving innovative technologies, should enable new insights into the conditions and mechanisms for tDOC decomposition and allow predictions on future impacts on the global carbon cycle.


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