Cruise report from R/V Argos week 15, 2010

Type: Report
Author: Martin Hansson


Surface nutrient concentrations were normal in all areas, with the exception of phosphate, which was elevated in the Sound. The oxygen concentration in the deep water of Kattegat was slightly lower than normal and the oxygen situation in the Bornholms Basin had worsen compared to previous measurements. In the western and eastern Gotland Basins oxygen concentrations below 2 ml/l were found at depth exceeding 70-80 meters. Hydrogen sulphide was found in the western Gotland Basin from 80-90 meters, while in the eastern Gotland Basin from 125 meters. The spring bloom in Skagerrak and Kattegat was in its final stage, though the bloom was ongoing in the Baltic Proper.