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Surface water temperatures were somewhat below normal in the whole investigated area. All nutrients showed concentrations typical for the season in the Skagerrak and Kattegat, while they in the Baltic Proper were above normal. The bottom water in the Arkona Basin was well oxygenated. Oxygen …

Remnants of the spring bloom were found in the surface water at both stations in the Skagerrak. The chlorophyll fluorescence maxima indicated that the bloom was sinking down considering they were found at approximately 15 meters. Diatoms dominated in the surface water and Skeletonema marinoi and …

Surface water temperatures were below normal in all investigated areas. Nutrients in the surface layer were almost completely consumed in the Skagerrak and Kattegat and the spring bloom was in progress. In the Baltic Proper winter conditions still prevailed and nutrient concentrations were above …

This work presents trends in the phytoplankton community. Data on the occurrence of both chlorophyll a (hereafter Chl a) as well as phytoplankton community structure and biovolume are presented. Water transparency in terms of Secchi depth is also presented, as a secondary effect of phytoplankton …

The cell concentrations were low at all stations in the Baltic Sea and at the Swedish west coast except at Å17 in the Skagerrak. The species diversity was relatively high at the Swedish west coast and low in the Baltic Sea. The integrated (0-20 m) chlorophyll a concentrations were within normal at …

An ensemble of models has been used to assess eutrophication in the North Sea and Baltic Sea in the present and the future climate, using a method suggested in Almroth and Skogen (2010). In the control run, the assessment of eutrophication status according to the integration of the categorized …

In the western Skagerrak the spring bloom was ongoing and in the Kattegat it was in the beginning. The concentrations of phosphate and silicate were over to much over normal levels in the whole area. The bottom water of the Arkona Basin was well oxygenated. Oxygen concentrations below 2 ml/l were …

The regional, coupled atmosphere-ice-ocean model RCA4-NEMO developed at the SMHI is evaluated on the basis of an ERA40 hindcast. While the development of the regional climate model is continuing a first assessment is presented here to allow for an orientation about the status guo. RCA4-NEMO in its …

Surface water temperatures were normal in the whole area. Surface nutrient concentrations were normal at most of the visited stations. Oxygen concentrations below 2 ml/l were present at depths exceeding 70-90 metres. Hydrogen sulphide was found deeper than 90 metres in the western Gotland Basin and …