Algal situation reports

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

Algae report number 4, 2011

The phytoplankton community in both Skagerrak and Kattegat areas comprised mainly of small flagellates. The only exception was Släggö, the inner site in the Skagerrak where the diatom Dactyliosolen fragilissimus was found in highest abundance. The coccolithophorid Emiliana huxleyi was dominating at …

 
Type: Report
Author: Marie Johansen
Published: Jul, 2011
Last updated:

Algae report number 3, 2011

The genus Dinobryon dominated in the Skagerrak area, the dominance was especially pronounced at the outer station Å17. Low chlorophyll a values clearly indicated that the spring bloom had now ended. Low chlorophyll a concentrations were also recorded in the Kattegat area. Few species were recorded …

 
Type: Report
Author: Marie Johansen
Published: Apr, 2011
Last updated:

Algae report number 2, 2011

The phytoplankton flora was poor in the Skagerrak area and small flagellated species dominated the samples. The integrated (0-20m) chlorophyll concentrations were low but within normal for this month. Traces from the spring bloom were obvious in the Kattegat area and the species Pseudochattonella …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Mar, 2011
Last updated:

Algae report number 1, 2011

The plankton community was dominated by diatoms in both Skagerrak and Kattegat and Skeletonema marinoi dominated at all stations. Different cryptomonads such as Teleaulax were also common. The chl a measurements were overall low and no tendency of a forthcoming spring bloom could be seen. A bit …

 
Type: Report
Author: Marie Johansen
Published: Feb, 2011
Last updated:

Algae report number 13, 2010

Relatively few cells were found at all stations which is normal for the season. A quite diverse community but with few cells of each species was however found in the Skagerrak area. The diatom genus Pseudo-nitzschia was found in high abundance at the outer station in Skagerrak (Å17) and at both …

 
Type: Report
Author: Marie Johansen
Published: Dec, 2010
Last updated:

Algae report number 12, 2010

The major differences between the Skagerrak and Kattegat areas during the latest cruise were the high cell numbers of the diatoms Pseudosolenia calcar-avis and Pseudo-nitzschia spp. in the Kattegat phytoplankton samples. The species’ were present in the Skagerrak as well but in low cell numbers. …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Nov, 2010
Last updated:

Algae report number 11, 2010

The phytoplankton species diversity was rather high in the Skagerrak and Kattegat areas although the number of cells was higher in the latter. Diatoms dominated the samples and chlorophyll a concentrations were at average at all stations but somewhat enhanced, within the limits, at Å13 in the …

 
Type: Report
Author: Ann-Turi Skejvik
Published: Oct, 2010
Last updated:

Algae report number 10, 2010

The integrated (0-20 meters) chlorophyll a concentrations were normal for the season at most of the Skagerrak and Kattegat sampling sites. The only exception was Släggö with lower concentrations than normal and Anholt E with higher concentration than normal. The plankton community was relatively …

 
Type: Report
Author: Marie Johansen
Published: Sep, 2010
Last updated:

Algae report number 9, 2010

A more autumn like phytoplankton community with more dinoflagellates was observed in the Skagerrak. The same phenomenon was not observed in the Kattegat. Only a few species and few cells were found in the Skagerrak waters at the ordinary phytoplankton stations. This was evident from the quite low …

 
Type: Report
Author: Marie Johansen
Published: Aug, 2010
Last updated:

Algae report number 8, 2010

The phytoplankton situation in the Skagerrak and Kattegat areas was relatively stable compared to the sampling three weeks earlier. However, there were no chlorophyll fluorescence peaks to speak of. Only at W Landskrona on the edge of the Sound an extra phytoplankton sampling was made at 15 meters …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Jul, 2010
Last updated:

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