General Information

Event name: FR-90-006
Country: FRANCE
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (1989- 3,000,000 cells/L)
Individuals to contact:

Location & Date

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Location: Latitude: , Longitude:
General location information: Penzé River, Morlaix River, Northern Brittany.
HAB Area code(s): FR-05
Additional location information: Area 3.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Late June - late July


Causative organism known: Yes
Causative Species/Genus: Alexandrium minutum (2,500,000 cells/L)
Morlaix River
Alexandrium minutum (133,400 cells/L)
Penzé River
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:
In situ
Growth Comments
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 26 to July 06 (Penzé River), from July 20 to July 27 (Morlaix River)
Additional harmful effect information: PSP toxicity above safety level (maximum recorded toxicity: 159 µg/100 g flesh in Penzé River, 151 µg/100 g flesh in Morlaix River)