General Information

Event name: PL-12-001
Country: POLAND
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Planktonic life
Toxicity detected: Yes (Approximate range: nodularin 1.4 - 2,000 g/L)
Associated syndrome: Cyanobacterial toxins effects
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (annual event)
Individuals to contact: Mazur-Marzec, Hanna , Kobos, Justyna

Location & Date

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Location: Latitude: , Longitude:
General location information: Gulf of Gdansk, Southern Baltic
HAB Area code(s): PL-01
Additional location information: for one week few kilometers covered shoreline of cyanobacterial bloom
Bloom event dates (yyyy/mm/dd): Event Date:2012-07-06
Start: 2012-06-12, End: 2012-07-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Nodularia spumigena ( cells/L)
14.8 mln (100 m filament/L); biomass 141.21 mg/L
Co-Ocurring Species/Genus: Aphanizomenon flos-aquae ( cells/L)
18.6 mln (100 m filament/L); biomass 36.46 mg/L
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): 23 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: Whole column
Growth: Advected
In situ
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Nodularia spumigena Nodularins 2,000 g/L LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses: beaches closed for three weeks in July 2012
Management decision:
Additional harmful effect information:
Created at 12:09 on 29 Apr 2014
Updated at 06:23 on 15 Dec 2019