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The temperature and nutrient concentrations in the surface layer, were normal for the season in all areas. An intense plankton bloom was ongoing in the eastern Skagerrak, in the Arkona Basin, the Hanö Bight and in an area in the northern part of the western Gotland Basin. Hydrogen sulphide was …

The nutrients showed typical winter concentrations in all areas. A tendency for a beginning spring bloom was visible in the Kattegat, while there were no signs of biological activity in the other basins. Hydrogen sulphide was detected in the Hanö Bight, the Bay of Gdansk and in the eastern, …

Temperature as well as nutrient conditions in the surface layer were normal for the season in all areas except some temperatures in the Baltic, which were higher. In the Baltic oxygen concentration of the bottom water usually was lower than the mean value of the latest decade. Oxygen …

The minor inflow of 20 km3, which flowed in through the Sound at the end of October and was detected at BY4 November 13, had now spread to BY5 giving oxygen concentrations just above 1 ml/l at bottom in the Bornholm Basin. However the volume is small and the oxygen content will soon be consumed. At …

Western Gotland Basin (southern part): On the Öland side oxygen conditions at the bottom were good. The lowest recorded concentration was 3.0 ml/l at a depth of 72 metres. On the Gotland side, conditions were worse. Levels below 2 ml/l were found at a depth of 60 metres. Bornholm Basin (including …

Sea surface temperatures and nutrients levels were mostly normal for the season in all areas. In the Kattegat the oxygen deficit of this year is over and the concentrations in the bottom water were normal for the season. In the Arkona Bassin the oxygen situation in the deep water is again normal …

Nutrients were at normal levels for the time of year, with the exception of silicate which showed enhanced concentrations in the eastern Skagerrak, and phosphate and silicate in the southern Baltic. Oxygen concentrations below 2 ml/l were detected in the bottom water in the southern Kattegat, at …

In the Skagerrak 9 stations with complete hydrography and 8 with sampling of oxygen and salinity in bottom water were visited. In the Kattegatt mapping of oxygen conditions in bottom water was performed, 9 stations with complete hydrography and 17 with oxygen and salinity near bottom were …

Surface temperatures were 3 to 5 oC higher than normal in all areas. All nutrients showed, for the season, normal values, with the exception of silicate that showed enhanced concentrations in the eastern Skagerrak and the northern Kattegat. Oxygen concentrations below 2 ml/l were detected in …

Surface temperatures in the Skagerrak, the Kattegat and in the Baltic were normal. The nutrients showed, for the season, mostly normal values. The salinity of the surface water in the Skagerrak and the Kattegat was normal. Oxygen concentrations below 2 ml/l were found at depths greater than 80 …