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Nutrient conditions were normal for the season in all areas. Oxygen concentrations below 2 ml/l were found in the whole Balic Proper at depths greater than 70 metres. Hydrogen sulphide was present in the eastern and western Gotland Basins at depths greater than 125 metres, in the Hanö Bight from 70 Last updated: Apr 23, 2014

the season. At W Landskrona the corresponding concentrations were 0.5 and 0.25 µmol/l respectively, which is below average. The silicate concentration in the Kattegat was 4.5 µmol/l and in the Sound 8.7 µmol/l. Baltic Sea The surface water temperature varied between 7.3 and 9.6ºC, the lowest being Last updated: Apr 23, 2014

. This report is based on preliminary data. 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 Last updated: Apr 23, 2014

report is based on preliminary data. 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 Last updated: Apr 23, 2014

Address Nya Varvet 31 SE-426 71 Västra Frölunda SWEDEN Telephone 46 11 4958000 Telefax 46 31 7518980 E-mail shark@smhi.se WWW http //www.smhi.se/sgn0102/nodc/ Lars Andersson Swedish Meteorological and Hydrological Institute Oceanographical Laboratory 2003-03-28 Dnr Mg-2003-55 CRUISE REPORT FROM R Last updated: Apr 23, 2014

between 1.1 and 2.2 µmol/l, silicate between 1 and 4 µmol/l and phosphate ca. 0.3 µmol/l. At the stations P2 and Å13, high ammonia concentrations were found at intermediate layers between 10 and 50 metres depth. Oxygen situation was normal for the season. The Kattegat, the Belt Sea and the Sound Surface Last updated: Apr 23, 2014

new conductivity-temperature-depth measurement instrument (CTD). Data presented in this report have been subject to preliminary quality control procedures only. Nutrient concentrations in the surface waters were normal for the season almost everywhere. The exception was phosphate which, south-east of Last updated: Apr 23, 2014

Address Nya Varvet 31 SE-426 71 Vastra Frolunda SWEDEN Telephone 46 11 4958000 Telefax 46 31 7518980 E-mail shark@smhi.se WWW http //www.smhi.se/ Bodil Thorstensson Swedish Meteorological and Hydrological Institute Oceanographical Laboratory 2004-04-24 Dnr Mg-2004-092 CRUISE REPORT FROM R/V ARGOS Last updated: Apr 23, 2014

in the surface were normal for the season in the whole area. In the Arkona Basin and at BCSIII-10, bottom water oxygen conditions were good. Oxygen concentrations below 2 ml/l were found at depths exceeding 70 – 90 metres in the remainder of the Baltic. Hydrogen sulphide was found at the bottom in Last updated: Apr 23, 2014

The temperature was normal, however in the higher region within normal values of the Skagerrak and the Kattegat. Nutrient concentrations in the surface layer were normal for the season in all areas, except the silicate concentration of the Baltic that was slightly lower. Hydrogen sulphide was Last updated: Apr 23, 2014