General Information

Event name: NL-23-003
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 27 ug TTX / kg)
Associated syndrome: OTHER
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (National Shellfihs Toxin monitoring (SSO))
Event occurred before in this location: No
Individuals to contact: POELMAN, Marnix

Location & Date

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Location: Latitude: 51.551944, Longitude: 3.835000
General location information: Lake Veere, South West
HAB Area code(s): NL-03
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2023-06-19
Start: 2023-06-19, End: 2023-06-26
Quarantine levels dates (yyyy/mm/dd): First detection: 2023-06-19,
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Good Turbidity (NTU): Wind direction: SW
Stratified water: Yes Oxygen content (nL/L): Wind velocity:
Temperature (°C): 21.5 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 30 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
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
Mussel Tetrodotoxins 27 LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Restrictions to harvest options. Administrative and Track and trace requirements.
Additional harmful effect information:
Created at 01:39 on 19 Apr 2024
Updated at 01:47 on 19 Apr 2024