General Information

Event name: FI-14-001
Country: FINLAND
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Toxicity detected: No
Associated syndrome: Cyanobacterial toxins effects
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Finnish phytoplankton monitoring)
Event occurred before in this location: Yes (Ca 10 years ago there was a similar long-lasting and wide bloom,)
Individuals to contact: LEHTINEN, Sirpa

Location & Date

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Location: Latitude: , Longitude:
General location information: Baltic Sea: South-western Finnish sea areas + northern Baltic Proper + southern Archipelago Sea, Baltic Sea: south-western Finnish sea areas +
HAB Area code(s): FI-04
Additional location information: Large area of Nodularia spumigena bloom in the south-western Finnish sea areas + northern Baltic Proper + southern Archipelago Sea
Bloom event dates (yyyy/mm/dd): Start: 2014-07-15, End: 2014-08-15
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: The bloom formed quickly after the half July.


Causative organism known: Yes
Causative Species/Genus: Nodularia spumigena Mertens in Jungers 1822 ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

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: Bloom was not tested for toxicity. It is known that bloom in the Baltic Sea formed by Nodularia spumigena most probably is hepatotoxic.Species was identified with a microscopic analysis.
Economic losses:
Management decision: Media was informed to alert people, some beaches were closed.
Additional harmful effect information:
Created at 07:17 on 26 Mar 2015
Updated at 06:50 on 15 Dec 2019