General Information

Event name: FR-21-001
Country: FRANCE
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: No
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (REPHY)
Event occurred before in this location:
Individuals to contact: Coastal Lab Dinard , LEMOINE Maud REPHY

Location & Date

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Location: Latitude: , Longitude:
General location information: West Cotentin / Mont St Michel,
HAB Area code(s): FR-04
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2021-06-28, End: 2021-09-12
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis sp. (13600 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: 5,7 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: AMONIUM: 0,71
PHOSPHATE: 0,23
SILICATE: 14,4
NITRATE + NITRITE: 6,81
Temperature Range During Event: Max: 22,3 °C, Min: 18,5 °C
Salinity Range During Event: Max: 35,2, Min: 31,2
Bloom location in the water column:
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Aequipecten opercularis Okadaic Acid 921,4 µg/kg LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Shellfish harvesting area closure
Additional harmful effect information:
Created at 02:26 on 10 Jun 2022
Updated at 12:31 on 30 Aug 2023
IOC/UNESCO ISSHA
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