Algal situation reports

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

Algae report number 11, 2020

The phytoplankton diversity and total cell numbers were relatively low as can be expected for the season. The only exception was Å17 that had quite high biodiversity. Diatoms dominated at all stations except at Släggö where dinoflagellates were more abundant. Overall the diatom Pseudo-nitzschia* …

 
Type: Report
Author: Marie Johansen, Maria Karlberg
Published: Dec, 2020
Last updated:

Algae report number 10, 2020

The phytoplankton diversity was over all high at all stations along the Swedish west coast. Diatoms dominated in numbers at all stations. Especially the diatom Leptocylindrus danicus was common at all stations. At Å17, the outer most station in the Skagerrak, a few cells of species more commonly …

 
Type: Report
Author: Ann-Turi Skjevik, Marie Johansen
Published: Nov, 2020
Last updated:

Algae report number 9, 2020

The phytoplankton diversity varied along the Swedish west coast. At Anholt E and Släggö it was moderate whereas Å17 and N14 Falkenberg had few cells and mainly small ones. Relatively high cell abundance of the coccolithophore Emiliania huxleyi was found at all stations. The integrated chlorophyll …

 
Type: Report
Author: Marie Johansen
Published: Sep, 2020
Last updated:

Algae report number 8, 2020

The phytoplankton diversity was higher in the Kattegat than in the Skagerrak. In the Kattegat there was an obvious impact of the Baltic blooms considering the presence of cyanobacteria surface accumulations that had drifted out through the Sound. There were relatively high cell numbers of the …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Sep, 2020
Last updated:

Algae report number 7, 2020

The analyses were made on bord the ship Svea during the cruise. Water from Integrated sampels or discrete depths were filtrated down to filters with 5μm pore size. The method is most suitable for identifying larger and more robust cells whereas smaller cells and fragile cells are difficult to …

 
Type: Report
Author: Marie Johansen
Published: Jul, 2020
Last updated:

Algae report number 6, 2020

Both the species diversity and total cell numbers were higher at Släggö (coastal station) than at Å17 (outer sea) at the time of sampling. Diatoms dominated at both stations and predominantly Guinardia flaccida was found. This species also dominated in the fluorescence peaks that were sampled. The …

 
Type: Report
Author: Marie Johansen, Maria Karlberg
Published: Jun, 2020
Last updated:

Algae report number 5, 2020

Both the species diversity and total cell numbers were moderate at both stations in the Skagerrak at the time of sampling. Diatoms dominated with a combination of species. Several fluorescence peaks were recorded at different depths. Samples from these depths contained almost exclusively diatoms. …

 
Type: Report
Author: Marie Johansen, Maria Karlberg
Published: May, 2020
Last updated:

Algae report number 4, 2020

Both the species diversity and total cell numbers were low at all stations along the west coast at the time of sampling. The genus Tripos (formerly called Ceratium) was the most common at all stations. The potentially toxic species Dinophysis norvegica* was also found in relatively high cell …

 
Type: Report
Author: Ann-Turi Skjevik, Marie Johansen
Published: Apr, 2020
Last updated:

Algae report number 3, 2020

At Å17, the most westerly Skagerrak station, the diversity and the total cell concentration were both high and presented a spring bloom situation. At Släggö, at the coast, the phytoplankton diversity and chlorophyll concentrations were a bit lower but still indicated a spring bloom. Diatoms …

 
Type: Report
Author: Ann-Turi Skjevik, Marie Johansen
Published: Mar, 2020
Last updated:

Algae report number 2, 2020

A number of stations were cancelled during the cruise. Some because of the bad weather, others due to the fact that parts of the anchoring from a buoy got stuck in one of the ships propellers, which caused cancellation of the cruise and a safety stop in Oxelösund prior to the detour to Lysekil. At …

 
Type: Report
Author: Ann-Turi Skjevik, Marie Johansen
Published: Mar, 2020
Last updated:
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