General Information

Event name: PL-05-001
Country: POLAND
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Toxicity detected: Yes (Approximate range: up to 3964 g/L; up to 2.36 g/g d.w. nodular)
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 (Annyual event.)
Individuals to contact: Mazur-Marzec, Hanna

Location & Date

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Location: Latitude: 54.500000, Longitude: 18.550000
General location information: Gulf of Gdansk,, Southern Baltic
HAB Area code(s): PL-01
Additional location information: ICES fishing area: IIId 26.
Bloom event dates (yyyy/mm/dd): Event Date:2005-07-08
Start: 2005-07-05, End: 2005-07-26
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Nodularia spumigena (2,999,125 cells/L)
Co-Ocurring Species/Genus: Anabaena spp. (149,330 cells/L)
Aphanizomenon flos-aquae (680,840 cells/L)
Chlorophyll concentration, if known: 1542 µg/l
Additional bloom information:
Event-related bibliography: Mazur-Marzec H., Krężel A., Kobos J., Pliński M., 2006, Toxic Nodularia spumigena blooms in the coastal waters of the Gulf of Gdańsk: a ten-year survey, Oceanologia 48(2): 255-273.

Environmental Conditions

Weather: calm, sunny Turbidity (NTU): Wind direction: SW
Stratified water: Yes Oxygen content (nL/L): Wind velocity: 1-2
Temperature (°C): 20.6 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 6.1 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: 25.9 °C, Min: 18.4 °C
Salinity Range During Event: Max: 6.8, Min: 6.1
Bloom location in the water column: Whole column
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 Nodularin 2.36 g/g LC
Nodularia spumigena Nodularins Nodularin 3,964 g/L LC
Kit used: Type of kit used:
Additional information: EnviroGard HPLC with DAD and LC-MS/MS. Hepatotoxin - nodularin.
Economic losses:
Management decision: close beach
Additional harmful effect information:
Updated at 06:28 on 15 Dec 2019