Cruise report from KBV001 Poseidon week 37, 2011

Type: Report
Author: Arne Svensson


The weather during the first part of the expedition was very rough with gale and heavy seas. At the visited stations in Kattegat, Skagerrak and the Sound nutrient concentrations showed normal values for the season. Lower silicate concentrations was found in south eastern and eastern Baltic proper. At the visited stations west of Gotland low oxygen values were found from 60 metres depth. At all other visited stations in western, eastern and northern Baltic Proper low oxygen values were found from 70 metres depth. Hydrogen sulphide was found from 80 to 100 metres and deeper in north-eastern and western Baltic Proper and from 125 metres and deeper in eastern Baltic Proper.