Expeditionsrapporter från utsjöövervakningen

Nutrient conditions were normal or the season in all areas. Oxygen concentrations below 2 ml/l were found in the whole Balic Proper at depths greater than 70 metres. Hydrogen sulphide was present in the eastern and western Gotland Basins at depths greater than 125 metres, in the Hanö Bight from 70 …

The temperature was normal, however in the higher region within normal values of the Skagerrak and the Kattegat. Nutrient concentrations in the surface layer were normal for the season in all areas, except the silicate concentration of the Baltic that was slightly lower. Hydrogen sulphide was …

The temperature and nutrient concentrations in the surface layer, were normal for the season in all areas. The spring bloom of phytoplankton had terminated in most of the areas covered. Only in the east part of the Baltic proper it was still going on. Hydrogen sulphide was present at depths greater …

Nutrient conditions and surface water temperatures were normal for the season in all areas. Oxygen concentrations below 2 ml/l were found at the bottom in Skälderviken, in the Sound from 15 metres, in western Arkona bassin from 40 meters and in the rest of the Baltic Proper at depths greater than …

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 …

Mapping of winter nutrient conditions in the Baltic Proper was performed. The nutrients showed typical winter concentrations in all areas. A tendency for a beginning spring bloom was observed in the Kattegat, while there were no signs of biological activity in the other basins. Hydrogen sulphide …

Mapping of winter nutrient conditions in the Kattegat and the Sound was performed. 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 …

The surface temperatures varied from 9.5°C in the Skagerrak to 5°C Bothnian Bay. Due to the very mild autumn the surface temperature in the Kattegat exceeded the normal values with 2°C and in the Baltic with 3.5°C . The nutrient concentrations were generally normal for the season with a few …

The temperatures varied between 9.3°C in the northern Batlic proper and 12.5°C in the Skagerrak. Nutrient concentrations were generally normal for the season with a few exceptions. The bottom water oxygen deficiency in the southeastern Katteagatt was restored to normal oxygen concentrations. In the …

There was an enlarged sampling in the south-eastern Kattegat to examine the oxygen of the bottom water. The water near the bottom in Laholmsbukten and Skälderviken had an oxygen content of 0.10 and 0.38 ml/l respectively. In the Sound there was less than 2 ml/l from 15 meters and deeper at W …