All aspects of the carbon cycle in freshwaters and coastal environments

Lateral versus vertical carbon fluxes along the River basin continuum and the proximal coastal zone

Carbon dioxide and methane emissions at the ecosystem and global scales

Sources, transfers and transformations of organic matter

Autotrophy / heterotrophy balance of aquatic ecosystems

Biogeochemical redox processes in sediment and estuarine turbidity maximum

Degradation of organic matter in oxic and anoxic conditions

Aerobic methane oxidation in waters and surface sediments

Interaction between suspended matter and microbial activity in estuarine turbidity maxima

Gas transfer at the air-water interface

Impacts of humans on all these processes and fluxes