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Salinity and oxygen measurements were taken near bottom at 41 stations. Hydrogen sulphide was detected at 10 of these. Western Gotland Basin: Oxygen conditions at the bottom were very bad. Levels below 2 ml/l were found deeper than 55 metres. Hydrogen sulphide was recorded from a depth of 80 meters …

The sum of the nitrate and nitrite concentrations were lower than normal in almost all areas, while the phosphate and silicate concentration was generally normal for the season. At W Landskrona in the Sound, the oxygen content was below 2 ml/l from 15 metres, down to the bottom at 50 metres. The …

Nutrient concentrations were normal for the season in all areas. In the south of Kattegat and in the Sound, deeper than 20 meters, oxygen concentrations were under 2 ml/l. In the southwest and south of Baltic, all stations except Arkona basin and Hanö bight had low oxygen values, the lowest being …

In the southern Kattegat and in the Sound, the oxygen concentration below 20 metres was less than 2 ml/l. In the southern and south-western Baltic, oxygen values were low at all stations, except in the Arkona Basin and Hanö Bight. The lowest oxygen value was 0.22 ml/l, observed between BY1 and …

Nutrient concentrations were normal for the season in all areas. At the coastal station Släggö, in the Skagerrak, the bottom water oxygen concentration was less than 2 ml/l. This was worse than normal. From 70-90 metres in the Bornholm Deep (BY 5), the Norrköping Deep (BY 32) and in the eastern …

Surface nutrient concentrations were low in all areas, which is normal for the season. A heavy bloom preliminary of Aphanizomenon "baltica" and Nodularia spumigena was seen at stations in the Baltic Sea, though it was less prominent in the Soutwestern parts. Oxygen levels below 1 ml/l was found …

Nutrient concentrations were normal for the season in all areas. An ongoing bloom preliminary of Aphanizomenon "baltica" and Nodularia spumigena was seen at stations in the Gotland Basins. In the deepwater of the Bornholm Basin, the Hanö Bight, southeast of Baltic Proper and east of Gotland the …

Nutrient concentrations in all areas were normal or slightly lower than normal for the season in all areas. The deep water of the Bornholm Basin, the Hanö Bight, southeast of Baltic Proper and east of Gotland was well oxygenated. Hydrogen sulphide was present in the northeast and west Gotland …

Nutrient concentrations were normal for the season in all areas. After the latest inflow to the Baltic in January, the deep water of the Arkona Basin, Bornholm Basin and the Hanö Bight was now well oxygenated. The inflow observed in the southeast of the Baltic Proper in April has now reached and …

Nutrient concentrations were normal for the season in most areas with the exception of high values of phosphate and silicate in the eastern Baltic. After the latest inflow to the Baltic in January, the deep water of the Arkona Basin, Bornholm Basin and the Hanö Bight was now well oxygenated. A thin …