General Information

Event name: NL-20-002
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 40-82 ug TTX / kg)
Associated syndrome: OTHER
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (National shellfish food safety programme)
Event occurred before in this location: Yes (2015-2020 annually)
Individuals to contact: POELMAN, Marnix

Location & Date

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Location: Latitude: , Longitude: 4.189444
General location information: Yerseke Bank, Oosterschelde, Eastern Scheldt
HAB Area code(s): NL-03
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2020-06-21
Start: 2020-06-03, End: 2020-06-28
Quarantine levels dates (yyyy/mm/dd): First detection: 2020-06-17, End: 2020-06-30
Additional date-related information:


Causative organism known: No
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Source to be validated.
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 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:
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: LC-MS TTX
Economic losses:
Management decision:
Additional harmful effect information:
Created at 02:09 on 21 Apr 2021