Cruise report from R/V DANA week 35-36, 2018

Type: Report
Author: Johan Kronsell


The cruise, which is part of the Swedish pelagic monitoring program, visited the Sound, the Baltic Proper and parts of the Kattegat. In the Kattegat, Anholt E represents the entire sea area since neither N14 nor Fladen were sampled. This is otherwise done during a regular monitoring cruise. Due to limited ship time in combination with a recent fishing survey covering the Skagerrak and the Kattegat where some hydrographical sampling was done, the main focus of the expedition was to visit sampling stations in the Baltic Proper. As during the most recent expedition, which was in May, the surface water temperature was above normal at all visited stations, except for the station REF M1V1 where the surface water temperature was normal. No monitoring cruises have been done during the summer due to technical problems on R/V Aranda. Nutrients in the form of dissolved inorganic nitrogen (DIN) in the surface water were generally below limit of quantification, which is normal for the season. For dissolved inorganic phosphorus (DIP) the levels were normal for the season. The silicate concentrations were normal or above normal for the season.