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General Information

Event name: FR-90-018
Country: FRANCE
Nature of the harmful event:
 Seafood toxins
Event directly affected:
 Shellfish
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 (1983, 1984 (x.10³ cells/L))
Individuals to contact:

Location & Date

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Location: Latitude: , Longitude:
General location information: Penerf River, Vilaine Bay, Croisic roads, SOUTHERN BRITTANY
HAB Area code(s): FR-08
Additional location information: Area 4.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Late May - Mid July

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. (4,800 cells/L)
Penerf River
Dinophysis spp. (24,400 cells/L)
Vilaine Bay
Dinophysis spp. (2,100 cells/L)
Croisic roads
Dinophysis sacculus ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: including D. Sacculus.
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: Advected
In situ
Growth Comments Probably
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Ban of shellfish marketing, from June 15 to June 29 (Penerf River), from May 31 to July 16 (at least one part of Vilaine Bay, and Croisic roads).
Additional harmful effect information: DSP toxicity above safety level (maximum recorded toxicity: high)