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Hypoxic and anoxic regions in the Baltic Sea, 2012

The content of this webpage is part of the Marine Science Report No 100 2016 and should be cited as:

Susanne Feistel, Rainer Feistel, Dietwart Nehring, Wolfgang Matthäus, Günther Nausch, Michael Naumann: Hypoxic and anoxic regions in the Baltic Sea, 1969 - 2015. Meereswiss. Ber., Warnemünde, 100 (2016) doi: 10.12754/msr-2016-0100

All version information and information on further technical development are available via the website

Jan/Feb, 2012: download SVG (computed 2016)
Mar/Apr, 2012: download SVG (computed 2016)
Apr/May, 2012: download SVG (computed 2016)
Jul/Aug, 2012: download SVG (computed 2016)
Oct/Nov, 2012: download SVG (computed 2016)
Apr/May & Oct/Nov, 2012: download SVG (computed 2016)
A relatively strong inflow signal of November/December 2011 was registered in the Bornholm Basin only in February 2012. With an estimated input of 1 Gt of salt and a transported amount of oxygen of 450 oo0 t, the inflow can be characterized as a small MBI. It was the first MBI since 2003. The inflow was strong enough to reach the southern Baltic Sea and the Gdańsk Basin in spring 2012 but did not reach the central Gotland Basin where the stagnation period was continuing undiminishedly with further increasing H2S concentrations (NAUSCH et al. 2013).



  • NAUSCH, G., FEISTEL, R., UMLAUF, L., MOHRHOLZ, V., SIEGEL, H., 2013: Hydrographisch-hydrochemische Zustandseinschätzung der Ostsee 2012. – Meereswiss. Ber., Warnemünde, 91, 1-109, doi: 10.12754/msr-2013-0091