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Oxygen concentrations in the Kattegatt bottom water were mapped. Low oxygen concentrations were found in the bottom water at Lundåkrabukten 1.95 ml/l and Skälderviken 1.51 ml/l. In the south east parts of Kattegatt the oxygen concentrations varied between 2.3 to 3.0 ml/l.

The surface water temperatures were between 14.8-18.9°C in the whole area. Oxygen concentrations below 2 ml/l were found at depths greater than 70m in the Bornholm Basin, at the Landsort and the Karlsö Deep, greater than 80 m in the eastern Gotland Basin and in the southeastern Baltic. Hydrogen …

Nutrient conditions were normal for the season. Hydrogen sulphide was found in the deep water in large areas of the Baltic and oxygen concentrations below 2 ml/l were generally found at depths exceeding 60 to 80 metres in the whole Baltic Proper. In the whole Baltic proper there was a considerable …

Nutrient conditions were normal for the season. Hydrogen sulphide was found in the deep water in large areas of the Baltic and oxygen concentrations below 2 ml/l was generally found at depths exceeding 60 to 70 metres in the whole Baltic Proper. In the Skagerrak there was an ongoing bloom of a …

The surface water temperatures were normal for the whole area. The nutrient concentrations were low in all sea areas with exception of HS 5 at the Jutland coast (high nitrate) and W Landskrona in the Sound (high silicate). These low values are normal for the season due to the algal blooms. Oxygen …

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.