Expeditionsrapporter från utsjöövervakningen

Surface water temperatures as well as all nutrient concentrations were normal for the season in all areas. In the Skagerrak and in the Kattegat, the spring bloom was over. An ongoing spring bloom was observed in the northwestern part of the Baltic. Oxygen concentrations below 2 ml/l were found in …

Surface water temperatures were normal for the season in all areas. In the Skagerrak, high nitrate concentrations were detected along the Jutland coast, where there also was a high algal production. In the rest of the Skagerrak and in the Kattegat, the spring bloom was almost over. In the Baltic …

The surface nutrient concentrations were still at winter level in the Baltic with the exception of the Bornholm and Arkona basins . The spring bloom had started as was seen from the nitrate and chlorophyll analyses and from measurements of fluorescence. In the northern Kattegat and the southern …

Mapping for the winter pool of nutrients in the Baltic was performed. The weather during the first part of the expedition was dominated by strong northerly winds while during the later part weak to moderate winds from south to southwest dominated. Nutrient concentrations were at typical winter …

Nutrient concentrations in the surface water of the Skagerrak were mapped. High concentrations of nitrogen associated with continental river water was found in the south eastern and eastern Skagerrak surface water and at intermediate water in the Kattegatt.

Mapping in the Kattegat was performed. The weather was in the beginning of the cruise dominated by strong northerly to north-easterly winds and by the end the winds shifted to south and decreased. The temperatures were slightly higher than normal for the season. The nutrient concentrations were …

Mapping for the winter pool of nutrients in the Kattegat was performed. The weather was dominated by moderate winds from south to southwest. The sea surface temperatures as well as the surface nutrient concentrations were normal for the season. The spring-bloom had not yet started in any area. The …

The surface water temperatures were between 4.6 and 6.4°C in the Baltic, between 1.8-2.8°C in the Sound and in the Kattegat and between 3.1-5.5°C in the Skagerrak. Oxygen concentrations below 2 ml/l were found at 70 m or deeper in the southeastern Baltic, in the Bornholm Basin and Hanö Bight, at 80 …

The surface temperatures varied from 10°C in the Skagerrak to 3°C in the Gulf of Bothnia. The nutrient concentrations were normal for the season in most areas. Hydrogen sulphide was found at depths greater than 80m in the Bornholm Basin and Hanö Bight, and at depths greater than 150m in the eastern …

The surface water temperatures were between 8 and 11°C in the whole area. Oxygen concentrations below 2 ml/l were found at depths greater than 70m in the Bornholm Basin and in the Landsort Deep, at 80m or deeper in the northern and eastern Gotland Basin. Hydrogen sulphide was present from 150 m in …