Cruise report from R/V Aranda week 50, 2015

Type: Report
Author: Lars Andersson


The water temperature was slightly above normal throughout the study area. The concentrations of nutrients in surface water were normal for the season in the Skagerrak and the Kattegat. In the Baltic proper, concentrations of inorganic nitrogen (NO2 + NO3) were at normal levels in the surface water. Phosphate and silicate showed levels above normal in the central and northern parts while the silicate was well below average for the season in the southern parts of the Baltic proper. The effect of the inflow in December 2014 could not be detected farther north than the station BY20 in the Eastern Gotland Basin. In the Western and Northern Gotland Basins the oxygen situation remains very serious.