General Information

Event name: FR-97-001
Country: FRANCE
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes
Individuals to contact: SCHWEIBOLD Laura

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: , SOUTHERN BRITTANY AND NORMANDY
HAB Area code(s): FR-07
Additional location information: Two regions were mainly affected: Southern Brittany (Atlantic coast) and Normandy (Channel coast). The total number of affected areas is equivalent to the last year, but is superior to the average for the five past years. In Mediterranean, only one pond in Corsica Island was affected early August.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: June to early August


Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. ( cells/L)
Corsica in August
Dinophysis spp. ( cells/L)
June on the Channel coast
Dinophysis spp. (<500 cells/L)
mid May in Brittany and Atlantic coast
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: No Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity: 0
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
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Ban of shellfish marketing, from June to early August in Brittany and Atlantic coast, closures were manintained until mid-September on the Channel coast.
Additional harmful effect information: Discoloured waters: Very important blooms of Gymnodinium chlorophorum were observed late July and early August, along the whole French Atiantic coast, leading to green waters. There were no harmful consequences. Other discoloured waters were also observ
Updated at 12:44 on 2 Dec 2019