General Information

Event name: PL-91-002
Country: POLAND
Nature of the harmful event:
Water Discoloration
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (Bloooms nearly every summer. Last Cyanophyceae - Nostocales bloom of special intensity took place in 1988. The summer bloom consist of Cyanophyceae - Chroococcales (Microcystis reinboldii, Aphanothece clathrata, Gomphosphaeria spp.) is observed annually in Southern Baltic.)
Individuals to contact: BRALEWSKA, Janina M.

Location & Date

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Location: Latitude: , Longitude:
General location information: Southern Baltic., Southern Baltic.
HAB Area code(s): PL-01
Additional location information: Offshore and gulf areas.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: First days of August.


Causative organism known: Yes
Causative Species/Genus: Aphanizomenon flos-aquae ( cells/L)
Nodularia spumigena ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Aphanizomenon flos-aquae: 12,000,000 µgC/l Nodularia spumigena: 5 - 10,500,000 µgC/l
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: 7 Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: 20 °C, Min: 19 °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments
Additional Environmental information: Oxygen: 6.4 ml/l

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: A lot of green to yellow patches on the surface of sea water.
Checked at 10:24 on 29 Apr 2014