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below normal for this month at N14, and normal in the rest of the Kattegat and Skagerrak area. Low cell numbers and few species were present in the Baltic Sea phytoplankton samples. Quite high cell numbers of the filamentous cyanobacterium Aphanizomenon flos-aquae was found at BY38. The integrated Last updated: Mar 02, 2017

nordenskioeldii dominated the phytoplankton samples. P. delicatissima-group was found with cell numbers above its critical limit at Å17 and N14. Some clones of this genus can produce AST (Amnesic Shellfish Toxin). No AST have however been reported in Swedish waters. In the Baltic Sea the number of species and the Last updated: Apr 23, 2014

integrated (0-10 m) chlorophyll a concentrations were normal for this month. The Baltic Sea was mainly dominated by colonies of small cyanobacteria and other small unicells. Large diatoms were common in the Eastern and Southern part of the Baltic Sea. The integrated (0-10 m) chlorophyll a concentrations were Last updated: Nov 02, 2015

coccolithophorids, the most abundant in the Kattegat area. The phytoplankton diversity was low in the Baltic Sea and consequently the chlorophyll concentrations were low. The concentrations were however below what is normal for this month at many stations. Last updated: Dec 05, 2016

coccolithophorids, the most abundant in the Kattegat area. The phytoplankton diversity was low in the Baltic Sea and consequently the chlorophyll concentrations were low. The concentrations were however below what is normal for this month at many stations. Last updated: Dec 02, 2016

All phytoplankton samples from the Skagerrak, the Kattegat and the Baltic Sea had low species diversities. All of the cell counts were very low. All of the Skagerrak stations except Släggö were not visited during the cruise due to bad weather conditions. No further detailed phytoplankton Last updated: Jan 26, 2017

less so in the Kattegat. At Å17 in the Skagerrak and Anholt E in the Kattegat, the integrated chlorophyll concentrations from 0-10 m were above normal for this month. The cyanobacteria season was finally over in the Baltic Sea. The phytoplankton diversity was low and consequently the chlorophyll Last updated: Nov 02, 2016

low and no diatoms were found in the samples. Diatoms were present in the area around Bornholm with low cell numbers. The integrated (0-20m) chlorophyll a concentrations were low in the Baltic Sea and below average at many stations. In the Kalmar Sound, the chlorophyll concentrations were rather high. Last updated: Apr 23, 2014

Kattegat were caused by diatoms. The heterotrophic species Ebria tripartita was abundant at Anholt E. In the picture the species seems to be feeding on a diatom chain. The flagellate Eutreptiella braarudii was present at Anholt and Släggö. 3The Baltic Sea Due to the weather conditions, only three of the Last updated: Mar 29, 2018

by the sinking bloom of the flagellate Pseudochattonella spp.*. The other fluorescence peaks in the Baltic Sea were caused by the spring bloom in different stages. The dinoflagellate Peridiniella catenata which is a typical Baltic spring bloom species, was abundant. Rather high cell numbers of the Last updated: May 09, 2017