General Information

Event name: PL-15-003
Country: POLAND
Nature of the harmful event:
Water Discoloration
Event directly affected:
Toxicity detected: Yes (Approximate range: nodularin 6.8 - 35,280.0 g/L; MC-LR 0.3-87.7 g/L; MC-YR 0.2-26.7 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 (occasionally)
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:
Bloom event dates (yyyy/mm/dd): Event Date:2015-08-11
Start: 2015-08-10, End: 2015-08-14
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Anabaena flos-aquae ( cells/L)
new name Dolichospermum) ( cells/L) 4.1 mln (100 m filament/L); biomass 5.4 mg/L
Nodularia spumigena Mertens in Jungers 1822 ( cells/L)
439.6 mln (100 m filament/L); biomass 3016.5 mg/L
Co-Ocurring Species/Genus: Aphanizomenon flos-aquae (Linneus) Ralfs ex Bornet et Flahaut 1888 ( cells/L)
43.7 mln (100 m filament/L); biomass 85.8 mg/L
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: warm, calm Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 21.3 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 7.0 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: 21.3 °C, Min: 19 °C
Salinity Range During Event: Max: 7.2, Min: 6.8
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
Anabaena (Dolichospermum) lemmermannii Microcystins MC-LR 87.68 g/L LC-MS
Anabaena (Dolichospermum) lemmermannii Microcystins MC-YR 26.72g/L LC-MS
Nodularia spumigena Nodularins Nodularin 35,280.0 g/L LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: 12 beaches closed
Additional harmful effect information:
Created at 07:08 on 29 Mar 2016
Updated at 06:20 on 15 Dec 2019