Algal situation reports

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

Algae report number 7, 2023

The diversity was overall low to moderate at most stations along the Swedish west coast. The larger cells were represented by the dinoflagellate genus Tripos together with Proboscia alata at some stations. The smaller cells were represented by the coccolithophore Emiliania huxleyi. Worth mentioning …

 
Type: Report
Author: Marie Johansen
Published: Jul, 2023
Last updated:

Algae report number 6, 2023

The diversity was quite low at all stations along the Swedish west coast. The cell numbers were however normal and almost high at Å17 with a dominance of diatoms. All stations had high cell numbers of Dactyliosolen fragilissimus which is normal for summer. Small cells were common and
Emiliania …

 
Type: Report
Author: Maria Karlberg, Marie Johansen
Published: Jun, 2023
Last updated:

Algae report number 5, 2023

The diversity and total cell numbers were generally low at all stations along the Swedish West coast. Small cells dominated in cell numbers which is common during late spring. At Å17 the coccolithophore Emiliania huxleyi was found in high cell numbers. The samples from the Kattegat still contained …

 
Type: Report
Author: Marie Johansen, Maria Karlberg
Published: Jun, 2023
Last updated:

Algae report number 4, 2023

At Å17 in open Skagerrak, the phytoplankton diversity was high with the potentially fish toxic genus Pseudochattonella*, the diatom Guinardia delicatula and cryptomonadales as the most numerous organisms. At Släggö, the diversity was very low and cryptomonadales and ciliates was found with the …

 
Type: Report
Author: Ann-Turi Skjevik, Maria Karlberg
Published: Apr, 2023
Last updated:

Algae report number 3, 2023

In the Skagerrak, the diversity of phytoplankton was low, especially at the outermost station, Å17. In the Kattegat however, the number of species and the total cell numbers were higher than in the Skagerrak area. Among the diatoms, Guinardia delicatula was the most numerous species, while …

 
Type: Report
Author: Ann-Turi Skjevik, Maria Karlberg
Published: Mar, 2023
Last updated:

Algae report number 2, 2023

Spring bloom was primarily ongoing in the Kattegat, with high abundances of the diatoms Skeletonema marinoi and Thalassiosira nordenskioeldii. The chlorophyll peaks at Fladen and Anholt (Kattegat) were also dominated by Skeletonema marinoi. All stations had similar species composition, although the …

 
Type: Report
Author: Anders Torstenssson, Marie Johansen
Published: Mar, 2023
Last updated:

Algae report number 1, 2023

The species diversity was high in the Kattegat although the total cell numbers were low. In the Skagerrak the diversity was lower. Everything is well adjusted for spring bloom to occur which usually begins in the southern Kattegat moving northwards. It will probably be the same scenario this year …

 
Type: Report
Author: Maria Karlberg, Ann-Turi Skjevik
Published: Jan, 2023
Last updated:

Algae report number 11, 2022

The phytoplankton diversity and the total cell numbers were relatively high at most stations along the Swedish west coast. The only exception was Å17 where total cell numbers were low. Diatoms dominated overall in cell numbers and Pseudosolenia calcar-avis was common in the Kattegat. The …

 
Type: Report
Author: Marie Johansen, Maria Karlberg
Published: Dec, 2022
Last updated:

Algae report number 10, 2022

The phytoplankton diversity was very low. The number of species at Släggö was somewhat enhanced compared to the other Skagerrak and Kattegat stations, but the total cell numbers were low in the entire area. At Släggö, moderate cell numbers of the silicate flagellate Octactis speculum and its naked …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Nov, 2022
Last updated:

Algae report number 9, 2022

The phytoplankton diversity was high at all stations along the Swedish west coast. Diatoms dominated in cell numbers and Pseudosolenia calcar-avis was common. In Skagerrak the potentially toxic dinoflagellate Dinophysis acuta* was common. The coccolithophore Emiliania huxleyi was found in high cell …

 
Type: Report
Author: Marie Johansen, Maria Karlberg
Published: Oct, 2022
Last updated:
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