DAVIDE VIVADO

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...

Siderophores are organic ligands involved in dissolved iron (dFe) speciation in the oceans. Their study is crucial for a better understanding of the biogeochemical cycle of Fe in the marine environment, particularly in certain areas, such as the Southern Ocean, where Fe deficiency limits marine productivity. In this study, an analytical method...

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The production of Antarctic Bottom Water (AABW) is a crucial factor in determining the strength of the Meridional Overturning Circulation, and therefore plays a significant role in the ocean's contribution to the global climate. AABW is primarily formed in the Ross and Weddell Seas, with unique thermohaline characteristics. In recent years, a...