General Information

Event name: FR-92-020
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 (Yeu: 1988 (200 cells/L); 1990 (2 100); 1991 (700).)
Individuals to contact: GROSSEL, Hubert

Location & Date

Location: Latitude: , Longitude:
General location information: Yeu island, Olonne coast., From Loire Estuary to Gironde Estuary.
HAB Area code(s):
Additional location information: Area 5.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: July (yeu island) then November to early December (Yeu and Olonne Coast).


Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. (580 cells/L)
Dinophysis acuta ( cells/L)
Dominant species.
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: Advected
Growth Comments Probably advected population.
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: DSP toxicity above safety levels.
Economic losses:
Management decision: Ban of shellfish marketing from July 2 to july 30 (Yeu island) fron November 25 to Decenber 12 (Yeu and Olonne coast).
Additional harmful effect information: