General Information

Event name: FI-03-001
Country: FINLAND
Nature of the harmful event:
Event directly affected:
Toxicity detected: Yes (Approximate range: Nod-R 30-480 pg/mL, MC-LR 6-50 pg/mL)
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 (Cyanobacteria occur regularly during summers in the Gulf of Finland even though toxicity is not measured)
Individuals to contact: LEHTINEN, Sirpa

Location & Date

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Location: Latitude: , Longitude:
General location information: Gulf of Finland, Baltic Sea
HAB Area code(s): FI-05
Additional location information: Many sampling points
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Nodularins 15.7.-14.8.2003, microcystins 15.-22.7.2003.


Causative organism known: Yes
Causative Species/Genus: Nodularia spumigena Mertens in Jungers 1822 ( cells/L)
Anabaena sp. ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Fewer P., Köykkä M., Halinen K., Jokela J., Lyra C., and Sivonen K. (2009) Culture-independent evidence for the persistent presence and genetic diversity of micorcystin-producing Anabaena (Cyanobacteria) in the Gulf of Finland. Env Microbiol 11(4): 855-866

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: 21.71 °C, Min: 16.93 °C
Salinity Range During Event: Max: 6.54, Min: 5.25
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
Anabaena spp. Microcystins MC-LR 50 pg/mL LC-MS
Nodularia spumigena Nodularins Nodularin 480 pg/mL LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Updated at 12:38 on 5 Nov 2019