Sammanfattning
The temperature as well as nutrient conditions in the surface layer were mostly normal for the season in all areas. The two inflows in the beginning of late October and November, through the Sound 20 and 40 km3 respectively, have reached the Gotland Deep and the bottom water in the Baltic is now oxygenated, even though with low amounts, from the Sound to the Gotland Deep. Oxygen concentrations below 2 ml/l, were found at depths exceeding 70 to 80 metres in the western, eastern and northern Gotland Basins. Hydrogen sulphide was found between 150 to 195 metres in the Gotland Deep and in the northern and western parts of the Baltic Proper at depths from 100 to 150 metres.