Hypoxic and anoxic regions in the Baltic Sea, 1989

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 https://www.io-warnemuende.de/msr-2016-0100.html

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Jan/Feb, 1989: download SVG (computed 2016)	Mar/Apr, 1989: download SVG (computed 2016)
Apr/May, 1989: download SVG (computed 2016)	Jul/Aug, 1989: download SVG (computed 2016)
Oct/Nov, 1989: download SVG (computed 2016)	Apr/May & Oct/Nov, 1989: download SVG (computed 2016)
Oxygen was present in the bottom water of the Bornholm Basin until May 1989. Later on, H₂S developed. In the Gdańsk Basin, no H₂S was detected during the whole year. Due to the ongoing stagnation, H2S was measured below the halocline at all investigations in the eastern Gotland Basin in high concentrations. Whereas no anoxic conditions were observed in the western Gotland Basin, low concentrations of H₂S were measured in the northern Basin in May, April, and November 1989 (NEHRING & FRANCKE, 1990b).

References:

NEHRING, D., FRANCKE, E., 1990b: Die hydrographisch-chemischen Bedingungen in der westlichen und zentralen Ostsee im Jahr 1989. – Fischerei-Forschung, 28(3), 35-45. (Link)