Algal situation reports

Reports from SMHIs offshore sampling programme, which describe the algal situation in marine waters surrounding Sweden.

Algae report number 6, 2019

The phytoplankton diversity was generally speaking low in the Skagerrak and Kattegat areas, although the number of species and the total cell numbers were higher in the Skagerrak in comparison. The coccolithophorid Emiliania huxleyi was abundant, especially at Släggö. The chlorophyll concentrations …

 
Type: Report
Author: Maria Karlberg and Ann-Turi Skjevik
Published: Jun, 2019
Last updated:

Algae report number 5, 2019

Most stations along the Swedish West coast had a domination of small cells. The coccolithophore Emiliania huxleyi was common at all stations and even dominated in cell numbers at Å17. In Kattegat remnants of the spring bloom could be seen with higher cell numbers of the diatoms Skeletonema marinoi …

 
Type: Report
Author: Marie Johansen
Published: May, 2019
Last updated:

Algae report number 4, 2019

A post spring bloom situation was observed at most of the phytoplankton stations in the Skagerrak and Kattegat areas with low total cell counts and relatively high numbers of heterotrophic species like the dinoflagellate Peridiniella danica. At N14 though, a Pseudochattonella bloom was ongoing …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Apr, 2019
Last updated:

Algae report number 3, 2019

In the Skagerrak and the Kattegat the biodiversity in the phytoplankton community was low and the chlorophyll concentrations were normal. The spring bloom was in its final days with quite high amounts of Guinardia delicatula and a few chains of Skeletonema marinoi. Furthermore, flagellates, such as …

 
Type: Report
Author: Ann-Turi Skjevik och Maria Karlberg
Published: Apr, 2019
Last updated:

Algae report number 2, 2019

The biodiversity and total cell concentrations were both low in Skagerrak. The spring bloom forming species Skeletonema marinoi was found in highest cell numbers. In the Kattegat however, the species diversity and total cell numbers were high. Diatoms dominated and S. marinoi was found in highest …

 
Type: Report
Author: Marie Johansen
Published: Mar, 2019
Last updated:

Algae report number 1, 2019

At Å17, the most westerly Skagerrak station and at Släggö near the coast, the phytoplankton diversity and chlorophyll concentrations were low, which is normal for this month. In the Kattegat however, the species diversity was high and some diatoms were found in very high cell numbers. The …

 
Type: Report
Author: Marie Johansen, Ann-Turi Skjevik
Published: Jan, 2019
Last updated:

Algae report number 8, 2018

The species diversity was rather high at most stations along the Swedish west coast. The total cell numbers were rather low. Diatoms dominated and the genus Pseudo-nitzschia* was found in then highest concentrations. The coccolithophorid Emiliania huxleyi was abundant at most stations.
The …

 
Type: Report
Author: Marie Johansen
Published: Nov, 2018
Last updated:

Algae report number 7, 2018

The species diversity was fairly high in the Kattegat and at Släggö at the Skagerrak coast. The total cell numbers were low and the most numerous species were the dinoflagellate Prorocentrum compressum and the diatom Pseudosolenia calcar-avis. The coccolithophorid Emiliania huxleyi was present in …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Oct, 2018
Last updated:

Algae report number 6, 2018

This cruise was not a full cruise with phytoplankton sampling at only three west coast stations and three stations in the Baltic Sea. The west coast stations Släggö and Anholt E displayed relatively high biodiversity. The coccolithophore Emiliania huxleyi was found at high cell numbers at both …

 
Type: Report
Author: Marie Johansen
Published: Oct, 2018
Last updated:

Algae report number 5, 2018

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, …

 
Type: Report
Author: Maria Karlberg
Published: Sep, 2018
Last updated:
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