General Information

Event name: SE-97-003
Country: SWEDEN
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Other Terrestrial , Humans
Toxicity detected: Yes
Associated syndrome: OTHER
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: No
Individuals to contact: SCHWEIBOLD Laura

Location & Date

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Location: Latitude: , Longitude:
General location information: , Baltic Sea.
HAB Area code(s): SE-07
Additional location information: South part of the Kattegat and large surface accumulations were observed in Laholm Bay.
Bloom event dates (yyyy/mm/dd): Start: 1997-06-01, End: 1997-08-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: June-August.


Causative organism known: Yes
Causative Species/Genus: Anabaena sp. ( cells/L)
July-August, all over the Baltic Sea
Aphanizomenon sp. ( cells/L)
July-August, all over the Baltic Sea
Nodularia spumigena ( cells/L)
July-August, all over the Baltic Sea
Aphanizomenon sp. ( cells/L)
east of Gothland, early June
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: No Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity: 0
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:
Economic losses:
Management decision:
Additional harmful effect information: Several dogs were reported intoxicated and eventually died. There were unconfirmed reports of human reactions after having swum in the sea.
Updated at 04:37 on 2 Dec 2019