Large amounts of methane, a potent greenhouse gas, are produced in anoxic sediments by
methanogenic archaea. Nonetheless, over 90% of the produced methane is oxidized via …

The coastal zone of the Baltic Sea is diverse with strong regional differences in the physico-
chemical setting. This diversity is also reflected in the importance of different biogeochemical …

Location, specific topography, and hydrographic setting together with climate change and
strong anthropogenic pressure are the main factors shaping the biogeochemical functioning …

Vivianite, a ferrous phosphate mineral, can be an important phosphorus (P) sink in non-
sulfidic, reducing coastal sediments. The Fe in the crystal structure of vivianite can be …

Microbes play a crucial role in mediating the methane flux in deep-sea cold seep
ecosystems, where only methane-related microbes have been well studied, while the whole …

Several lines of evidence point to low rates of net primary production (NPP) in Archean
oceans. However, whether Archean NPP was limited by electron donors or nutrients …

Enhanced recycling of phosphorus as ocean deoxygenation expanded under past
greenhouse climates contributed to widespread organic carbon burial and drawdown of …

The study aimed to determine the level of mercury (Hg) and its labile and stable forms in the
surface sediments of the Baltic Sea. The work considers the impact of current and historical …

Abstract Vivianite (Fe 3 (PO 4) 2· 8H 2 O) is a common hydrous ferrous phosphate mineral
which often occurs in reductive conditions, especially anoxic non-sulfide environment …

Coastal zones account for 75% of marine methane emissions, despite covering only 15% of
the ocean surface area. In these ecosystems, the tight balance between methane production …