General Information

Event name: FI-03-002
Country: FINLAND
Nature of the harmful event:
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location:
Individuals to contact: LEHTINEN, Sirpa

Location & Date

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Location: Latitude: , Longitude:
General location information: Föglö, Åland Archipelago, Baltic Sea
HAB Area code(s): FI-04
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2003-09-04
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Maximum cell density on that date, sampling for research purposes


Causative organism known: No
Causative Species/Genus: Alexandrium ostenfeldii (Paulsen) Balech et Tangen 1985 (200000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Kremp A., Lindholm T., Dressler N., Erler K., Gerdts G., Eirtovaara S., Leskinen E. (2009) Bloom forming Alexandrium ostenfeldii (Dinophyceae) in shallow waters of the Åland Archipelago, Northern Baltic Sea. Harmful Algae 8:318-328

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information: Live samples were taken from field and cultured in laboratory. HPLC/FD analysis of PSP toxins revealed the presence of GTX 2, GTX 3 and STX.
Economic losses:
Management decision:
Additional harmful effect information:
Updated at 12:39 on 5 Nov 2019