Summary
The surface water nutrient concentrations were normal in almost all areas, with the exception of the phosphate and silicate concentrations, which were higher than normal in the Baltic Proper. Oxygen concentrations below 2 ml/l were found in the Baltic Proper at depths exceeding 60 to 80 metres. Hydrogen sulphide was found in the Bornholm and Gotland Deep, and at all stations in the Northern Baltic Proper and Western Gotland Basin. In the Bothnian Bay, surface water temperatures were slightly higher than last year. This may delay sea ice formation, despite the very low air temperatures experienced during the cruise.