Algal situation reports

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

Algae report number 3, 2016

The spring bloom was in its final phase in the Kattegat-Skagerrak areas. The chlorophyll concentrations were high and typical spring bloom diatoms were present, but the nutrients were completely or almost completely exhausted, which is why the bloom was predicted to end soon. Chlorophyll …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Apr, 2016
Last updated:

Algae report number 2, 2016

The phytoplankton diversity and cell concentrations were low in the open Skagerrak area while the beginning of a spring bloom was recorded at the inner station Släggö. The diatom Skeletonema marinoi was found in relatively high concentrations at all stations and this species is often dominating the …

 
Type: Report
Author: Marie Johansen
Published: Mar, 2016
Last updated:

Algae report number 1, 2016

All phytoplankton samples from the Skagerrak, the Kattegat and the Baltic Sea had low species diversities. All of the cell counts were low. No further detailed phytoplankton information will be presented in this report, only species lists and the chlorophyll diagrams.

 
Type: Report
Author: Ann-Turi Skjevik
Published: Jan, 2016
Last updated:

Algae report number 10, 2015

The phytoplankton diversity and cell concentrations were low in the Skagerrak area. Small diatoms dominated. In the Kattegat the potentially toxin producing genus Pseudo-nitzschia spp dominated the community. The potentially harmful naked dinoflagellate Karenia mikimotoi was present. The integrated …

 
Type: Report
Author: Marie Johansen
Published: Dec, 2015
Last updated:

Algae report number 9, 2015

The phytoplankton community in the Skagerrak and the Kattegat was dominated by a small coccolithophore, Emiliania huxleyi, and a diatom, Pseudo-nitzschia spp. The potentially harmfull naked dinoflagellates Karenia
mikimotoi and Karlodinium veneficum were common and particularly at Släggö. The …

 
Type: Report
Author: Malin Mohlin
Published: Nov, 2015
Last updated:

Algae report number 8, 2015

There were several phytoplankton species with high cell numbers in the samples from the Skagerrak and Kattegat area, above all at the coastal stations Släggö in the Skagerrak and N14 in the Kattegat. The integrated (0-10 m) chlorophyll a concentrations were normal for this month. Chlorophyll a …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Sep, 2015
Last updated:

Algae report number 7, 2015

This report covers the Baltic Proper only as this expedition is reporting from the Finish cruise. All analyses have been performed onboard the ship and the main focus was to follow the cyanobacterial surface accumulations and blooms.

Summary of surface accumulations
The warm air temperature and …

 
Type: Report
Author: Marie Johansen
Published: Aug, 2015
Last updated:

Algae report number 6, 2015

Fluorescence maxima in both Skagerrak and Kattegat areas were to a great deal caused by the dinoflagellate genus Ceratium. Unusually large numbers of C. macroceros was observed.

In the Baltic, the cyanobacteria surface accumulations had been muixed down in the water column by wind and waves. …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Jul, 2015
Last updated:

Algae report number 5, 2015

The stations at Skagerrak were dominated by large cells from the dinoflagellate genus Ceratium. The phytoplankton community in the Kattegat was dominated by the diatom Phaeodactylum tricornatum. The cyanobacterial species Aphanizomenon flos-aquae and the dinoflagellate Dinophysis norvegica were …

 
Type: Report
Author: Malin Mohlin
Published: Jun, 2015
Last updated:

Algae report number 4, 2015

All stations along the Swedish west coast except for the outer most station in Skagerrak were dominated by small flagellates. Some of the flagellates could be determined to belong to the order prymnesiales.

In the Baltic Sea the cell density was generally low but a remnant of a spring bloom was …

 
Type: Report
Author: Marie Johansen
Published: May, 2015
Last updated:

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