General Information

Event name: DK-21-002
Country: DENMARK
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 100-430 ug OA eq/kg)
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Spisola solida
Report the outcome of a monitoring programme: Yes (mandatory monitoring of shellfish harves)
Event occurred before in this location: Yes (outer part of the wadden sea - marked fronts area)
Individuals to contact: ANDERSEN, Per

Location & Date

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Location: Latitude: , Longitude:
General location information: Outer wadden sea,
HAB Area code(s): DK-09
Additional location information: area with marked fronts providing stratified waters
Bloom event dates (yyyy/mm/dd): Event Date:2021-08-15
Start: 2021-08-08, End: 2021-08-29
Quarantine levels dates (yyyy/mm/dd): First detection: 2021-08-15, End: 2021-09-05
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Dinophysis acuminata (> 1000 cells/L)
Co-Ocurring Species/Genus:
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): 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:
In situ
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Spisula solida Okadaic Acid 430 OA eq/kg LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses: ?
Management decision: closing area for harvest
Additional harmful effect information:
Created at 09:53 on 29 Mar 2023
Updated at 09:55 on 29 Mar 2023