The temperatures in the surface layer varied between 7.5-9°C in the Skagerrak and the Kattegat, in the Baltic between 6-10°C. The lowest temperature, 2.2°C, was measured in the northen part of the Bothnian Bay. Hydrogen sulphide was measured at the station BY4 Christiansö and in the Hanö Bight. Low concentrations of oxygen, < 2 ml/l, could be found below 80 depth in the southern part of the Baltic, and below 100-125 m depth in the other parts of the Baltic. The salinity in the bottom-water in the Gotland Deep is unchanged since the same timeperiod last year. The nutrient concentrations in the surface layer are low in all areas covered by the expedition. The highest values of nitrate and silicate were measured north of Kvarken in the Gulf of Bothnia.