Summary
Winter calm are the key words summarizing the phytoplankton situation throughout the sampling areas in the Western Sea and in the Baltic in January. Fragments from a Ceratium bloom was found at the Skagerrak coast (Släggö) and in the Kattegat. The diversity was very low. Cryptomonads were common in the Baltic Sea, besides this there was nothing to report. The integrated (0-20 m) chlorophyll a concentrations were low, but within normal for this month in all sampling areas. This report is a shortened version because of lack of events in the phytoplankton world.