This sampling occasion was not a full cruise with all phytoplankton stations, only one west coast phytoplankton station and six in the Baltic Sea were sampled. The west coast station (Anholt E), displayed an autumn bloom community with several species of dinoflagellates, as well as some diatoms, ciliates and flagellates. The integrated (0-10 m and 0-20 m) chlorophyll a concentrations were low but within normal for this month at all stations in the Kattegat and the Skagerrak, except for W Landskrona where chlorophyll concentrations were higher than normal.
At the Baltic Sea stations the phytoplankton community was a typical post summer bloom community, with still some filamentous cyanobacteria, occasionally at high cell numbers, as well as flagellates, ciliates, colony forming cyanobacteria and two large species of the genus Chaetoceros. The integrated (0-10 m and 0-20 m) chlorophyll a concentrations were high but within normal for this month at all stations in the Baltic Sea, except for BY10, BY1 and BY5 where chlorophyll concentrations were higher than normal for September.
The cruise was performed on the R/V Dana.