PAOLA RIVARO

Biogeochemistry refers to the cycling of chemical elements through living systems and their environments by physical, chemical, biological and geological processes. The biogeochemical cycles of carbon, nitrogen, phosphorus, and some essential trace elements such as iron have strong implications in the Antarctic Ocean for the functioning of the...

The Ross Sea (Antarctica) plays a significant role in the Southern Ocean carbon cycle by functioning as a major regional oceanic CO2 sink and in the regional cycling of other essential bio elements, such as nitrogen, phosphorus and iron. Sea ice dynamic controls the surface waters (AASW) physical and chemical features and influence...

Iron (Fe) is the most important trace element in the ocean ecosystem, being a micronutrient required for phytoplankton growth and thus involved in marine primary productivity and carbon export. The dissolved Fe (dFe) is the most bioavailable fraction and about 99.9% of the dFe is complexed with organic ligands (L), the nature of which is...

Iron (Fe) is the most important trace element in the ocean, as it is required by phytoplankton for photosynthesis and nitrate assimilation [1]. Fe speciation is important to better understand the biogeochemical cycle and availability of this micronutrient, in particular in the Southern Ocean [2]. Dissolved Fe (dFe) concentration and speciation...