This report presents the results from two October cruises. The Skagerrak, the Kattegat and Southwestern Baltic areas were visited in the beginning of the month, and the Baltic Proper at the end. The number of species and cell numbers were very low in the Skagerrak and the Kattegat. The integrated chlorophyll a concentrations were within average at all stations. The phytoplankton flora was scarce in the Baltic. The exception was at REF M1V1 in the Kalmar Sound where a bloom of the diatom Skeletonema marinoi was observed. All integrated chlorophyll a concentrations were within average. No more detailed information will be presented in this report, apart from a species list and chlorophyll diagrams.