General Information

Event name: FI-11-001
Country: FINLAND
Nature of the harmful event:
Event directly affected:
Toxicity detected: Yes (Approximate range: cellular PSP ca. 0.30 µg/L (GTX2+3, STX))
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (2004, 2009, 2010)
Individuals to contact: LEHTINEN, Sirpa

Location & Date

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Location: Latitude: 60.150556, Longitude: 20.885278
General location information: Föglö, Ĺland Archipelago, Baltic Sea
HAB Area code(s): FI-04
Additional location information: Maximum toxicity 11.8.2011, maximum cell consentration 25.8.2011 300 000 cells/L, maximum intensity of bioluminescence ca. 9 nWcm2 ca. 25.8.2011
Bloom event dates (yyyy/mm/dd): Event Date:2011-08-11
Start: 2011-08-11, End: 2011-08-25
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Project samples were taken 14.7.-22.9.2011, maximum bloom was 11.8.-25.8.2011.


Causative organism known: Yes
Causative Species/Genus: Alexandrium ostenfeldii (Paulsen) Balech et Tangen 1985 (300 000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Le Tortorec, Anniina

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
Alexandrium ostenfeldii Saxitoxins GTX3 0.3 µg/L LC
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 12:51 on 7 May 2013
Updated at 12:53 on 5 Nov 2019