General Information

Event name: FR-20-007
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 Concarneau , LEMOINE Maud REPHY

Location & Date

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Location: Latitude: , Longitude:
General location information: West Brittany / Brest, Iroise and Douarnenez,
HAB Area code(s): FR-06
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2020-08-10, End: 2020-11-22
Additional date-related information:

Microalgae

Causative organism known: No
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: 1,6 µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): 1,6 Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 22 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 34,5 Current Velocity:
Nutrient information: AMONIUM: 1,1
PHOSPHATE: 0,17
SILICATE: 3,7
NITRATE + NITRITE: 0,5
Temperature Range During Event: Max: 22 °C, Min: 12,3 °C
Salinity Range During Event:
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
Donax trunculus Okadaic Acid 1100 g/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 02:08 on 23 Apr 2021
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES