General Information

Event name: BE-01-001
Country: BELGIUM
Nature of the harmful event:
High Phyto concentration
Event directly affected:
Toxicity detected: Yes (Approximate range: >160 µg OA Eq/kg)
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Routine phytoplankton monitoring by Flanders Environment Agency (VMM))
Event occurred before in this location: Yes (Slight peak (125 cells/L) detected in october 2010)
Individuals to contact: De Rijcke, Maarten

Location & Date

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Location: Latitude: 51.230556, Longitude: 2.951667
General location information: Spuikom, Ostend Harbor
HAB Area code(s): BE-01
Additional location information: Artificial, shallow lagoon with reduced tide.
Bloom event dates (yyyy/mm/dd): Event Date:2001-07-10
Start: 2001-06-12, End: 2001-08-06
Quarantine levels dates (yyyy/mm/dd): First detection: 2001-07-10, End: 2001-07-30
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata Claparčde et Lachmann 1859 (23000 cells/L)
Co-Ocurring Species/Genus: Prorocentrum minimum (22000 cells/L)
Currently accepted as Prorocentrum cordatum (AphiaID 232376)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Densities of both species follow same dynamic.
Event-related bibliography: Van Wichelen, J.; De Bock, D.; Vyverman, W. (2008). Bepalen van het maximaal en het goed ecologisch potentieel, alsook de huidige toestand voor een aantal Vlaamse (gewestelijke) waterlichamen die vergelijkbaar zijn met de categorie meren: Deel II. Partim ‘Spuikom’: Rapport studieopdracht: VMM.AMO.KRW.ECOPOT-Meren - Projectperiode: 01/11/2007 - 1/12/2008. Universiteit Gent: Gent. 69 + bijlage pp.

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
European flat oyster (Ostrea edulis) Okadaic Acid >160 µg OA Eq/kg LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses: Recall of shellfish, impact unknown
Management decision: Shellfish closure
Additional harmful effect information:
Created at 10:51 on 20 Dec 2017
Updated at 03:30 on 16 Nov 2018