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BGD - Special Issue
Molecular biogeochemical provinces in the eastern Atlantic OceanEditor(s): B. Koch, G. Kattner, and G. Herndl
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One of the most important aspects to understand marine organic carbon fluxes is to resolve the molecular mechanisms which convert fresh, labile biomolecules into semi-labile and refractory dissolved and particulate organic compounds in the ocean. In this interdisciplinary project, we carried out a detailed molecular characterisation of dissolved organic matter (DOM) during a North-South transect in the Atlantic surface ocean to relate the data to different biological, climatic, oceanographic, and meteorological regimes. Our goal was to achieve a high resolution data set for the biogeochemical characterisation of the sources and reactivity of DOM. We applied various biogeochemical analyses for 220 samples from the upper water column (0-200m) and eight deep profiles. Spectroscopic techniques were applied continuously for phytoplankton characterization in a constant sample water flow supplied by a fish system and the moon pool. Radiocarbon dating enabled assessing DOC residence time. Bacterial abundance and production provided a metabolic context for the DOM characterization work.Download citations of all papers: Bibtex EndNote Reference Manager
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