Search

Adress 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/ Arne Svensson – Sjöquist Swedish Meteorological and Hydrological Institute Oceanographical Laboratory 2005-06-18 Dnr Mo-2005-142 CRUISE REPORT FROM R Last updated: Apr 23, 2014

/l in the Bornholm Basin and 2.5 ml/l in the southern East Gotland Basin. In the rest of the Baltic Sea oxygen concentrations below 2 ml/l were observed at depths exceeding 70 to 80 metres. Hydrogen sulphide was found deeper than 90-100 metres in the Western Gotland Basin. At most stations in the Last updated: Apr 23, 2014

pycnocline. For more details see the separate phytoplankton report. The Baltic Proper The temperature in the surface water had increased since last expedition and was normal or somewhat above normal for the season and varied between 17.0 and 18.5°C. The eastern parts were somewhat warmer than the western Last updated: Oct 06, 2015

-20 metres depth. The concentration of nutrients in the surface water was low or almost exhausted, which is normal for the season. The phosphate concentrations varied between 0.02-0.05 µmol/l and the inorganic nitrogen was below the reporting limit. Silicate also showed low concentrations around 0.6-0.9 µmol Last updated: Jul 29, 2015

/l. All values normal for the season. At 15 m depth at station Å17, furthest west, a thin layer of water with extremely high nutrient concentrations was found, probably originating from the southern North Sea. Some plankton activity, based on fluorescence measurements, was recorded in the central regions Last updated: Oct 29, 2014

During the cruise, which is part of the Swedish pelagic monitoring program, the Skagerrak, the Kattegat, the Sound and the Baltic Proper were visited. The surface water temperature was normal for the month and varied from 2–4 °C in the Baltic Sea to 3–4 °C in the North Sea. In the North Sea, the Last updated: Apr 10, 2024

more detailed report describing observed algae can be found here http //www.smhi.se/oceanografi/oce_info_data/reports/havmiljoarkiv/oce_reportarchive12.html Last updated: Apr 23, 2014

The temperature in the surface water was high for the season, at its lowest in the northern Baltic Proper at 16.5 °C up to almost 20 °C in the Hanö Bay. The salinity on the west coast was normal or slightly below, in the Baltic Proper it was normal except in the northeast where it was somewhat Last updated: Oct 03, 2016

Nutrient conditions were normal for the season in all areas. Oxygen concentrations below 2 ml/l were found in the whole Baltic Proper at depths greater than 70 to 80 metres. Hydrogen sulphide was present in the Eastern and Western Gotland Basin at depths greater than 90 metres, in the Bornholm Last updated: Apr 23, 2014

The temperature of the surface water in the Skagerrak was some degree higher than normal. The nutrient concentrations were higher than normal in the Kattegat and the oxygen content of the bottom water was lower. Nutrient conditions and surface water temperatures were normal for the season in the Last updated: Apr 23, 2014