Algal situation reports

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

Algae report number 5, 2017

Diatoms dominated along the Swedish west coast. The total cell concentrations were overall quite low. Chlorophyll concentrations were within normal at most stations except in the northern stations Å15 and Å13 where they were above normal for the month. The flagellate Pseudochattonella spp.*, …

 
Type: Report
Author: Marie Johansen
Published: Jun, 2017
Last updated:

Algae report number 4, 2017

Chlorophyll fluorescence maxima and some high measured chlorophyll concentrations in the Kattegat and Skagerrak areas were mainly caused by the flagellate Pseudochattonella spp.*, potentially harmful for fish. The flagellate has been observed during the two previous cruises as well. The cells were …

 
Type: Report
Author: Ann-Turi Skjevik
Published: May, 2017
Last updated:

Algae report number 3, 2017

The phytoplankton genus Pseudochattonella spp.*, which is potentially harmful to fish when in high abundancies, was still blooming in the Kattegat and Skagerrak areas during the March cruise. The genus caused chlorophyll fluorescence maxima at several stations. The diatom spring bloom seems smaller …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Mar, 2017
Last updated:

Algae report number 2, 2017

The phytoplankton genus Pseudochattonella spp.*, which is potentially mortal to fish when in high abundancies, was present with quite high cell numbers at all of the phytoplankton monitoring stations in the Kattegat and Skagerrak area. Fluorescence maxima at Anholt E, Å13 and Å15 were mainly caused …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Mar, 2017
Last updated:

Algae report number 1, 2017

All phytoplankton samples from the Skagerrak, the Kattegat and the Baltic Sea had low species diversities. All of the cell counts were very low. All of the Skagerrak stations except Släggö were not visited during the cruise due to bad weather conditions. No further detailed phytoplankton …

 
Type: Report
Author: Ann-Turi Skjevik
Published: Jan, 2017
Last updated:

Algae report number 11, 2016

A diatom bloom was present at the Skagerrak and Kattegat stations with a dominance of Pseudo-nitzschia spp.* and Pseudosolenia calcar-avis. Chlorophyllfluorescence maxima at Släggö, Anholt E and W Landskrona were mainly caused by the same diatom species. There were quite high cell numbers of …

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

Algae report number 11, 2016

A diatom bloom was present at the Skagerrak and Kattegat stations with a dominance of Pseudo-nitzschia spp.* and Pseudosolenia calcar-avis. Chlorophyllfluorescence maxima at Släggö, Anholt E and W Landskrona were mainly caused by the same diatom species. There were quite high cell numbers of …

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

Algae report number 10, 2016

A minor autumn bloom was observed at the Skagerrak and Kattegat stations with high phytoplankton diversity. The flagellate Dictyocha speculum* was found in a so called naked stage, without the silica structure, when the species is potentially harmful. The species was numerous in the Skagerrak and …

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

Algae report number 9, 2016

The phytoplankton diversity was low in the Skagerrak area and at the station Släggö, the chlorophyll a concentrations were below normal for this month. The number of species and the number of cells were higher in the Kattegat than in the Skagerrak, but chlorophyll a concentrations were low. In the …

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

Algae report number 8, 2016

Ciliates, naked dinoflagellates and small species like cryptomonads were common in the phytoplankton samples from the Skagerrak and Kattegat areas. In the Kattegat, diatoms were common. A few potentially toxic species were found in low amounts. The filamentous cyanobacterium Nodularia spumigena* …

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

År

Månad