General Information

Event name: FR-90-003
Country: FRANCE
Nature of the harmful event:
Water Discoloration
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (Not since 1984.)
Individuals to contact: SCHWEIBOLD Laura

Location & Date

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Location: Latitude: , Longitude:
General location information: The whole areas, Normandy and Northern Brittany.
HAB Area code(s): FR-02 FR-03 FR-04 FR-05
Additional location information: Area 2, 3.
Bloom event dates (yyyy/mm/dd): Start: 1990-03-01, End: 1990-03-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: March


Causative organism known: No
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Most likely a coccolithophoridae species
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 No data available
Additional Environmental information: No data available

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:
Additional harmful effect information: White and green-brownish water discoloration. The bloom probably started around Ouessant front, then spread out offshore Normandy coast.
Updated at 12:08 on 3 Dec 2019