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A winter situation with small amounts of phytoplankton is at hand. In the Skagerrak and Kattegat Ceratians and Thalassiosira punctigera are the most common species. In the Baltic Chaetoceros impressus and C. danicus together with Dinophysis acuminata, D.norvegica and Aphanizomenon sp., all in very …

The amount of phytoplankton in the open Skagerrak is small, whereas the coastal station showed a rich planktonflora dominated by Ceratians. Large amounts of dinoflagellates with a dominance of Ceratium furca and Lingulodinium polyedrum were found in the Kattegat. There are still blue-green algae, …

The amount of phytoplankton in the Skagerrak is relatively small and no blooms or accumulations were observed. A large bloom of the dinoflagellate Ceratium furca was found in the Kattegat. Considerable accumulations of blue-green algae, with a dominance of Aphanizomenon sp. and to a smaller degree …

Considerable accumulations of blue-green algae, with a dominance of the potentially toxic Nodularia spumigena, are present in the Baltic Sea. Most algal mats around Gotland. Less, but still a lot in the Hanö Bight and in the south part of Öresund. With sunny and calm weather the blooms will …

In the Skagerrak and the Kattegat the plankton composition and abundance has reached a winter situation with small amounts of phytoplankton. In the Baltic Sea the winter situation is obvious by the small amounts of phytoplankton.

In the Skagerrak and the Kattegat the autumn bloom, dominated by diatoms, was developing. Large amounts of Chaetoceros and Pseudo-nitzschia species were present. Dinoflagellates were also common. In the Baltic cyanobacteria had almost disappeared and large diatoms, some dinoflagellates and small …