General Information

Event name: FR-90-011
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 (1984, 1985, 1988, 1989.)
Individuals to contact: SCHWEIBOLD Laura

Location & Date

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Location: Latitude: , Longitude:
General location information: Between Loire and Gironde Estuaries, SOUTHERN BRITTANY AND ATLANTIC COAST
HAB Area code(s): FR-09
Additional location information: Area affected: offshore, from Morbihan gulf to Yeu Island. Area 4, 5.
Bloom event dates (yyyy/mm/dd): Start: 1990-05-01, End: 1990-05-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: May


Causative organism known: Yes
Causative Species/Genus: Noctiluca scintillans ( cells/L)
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: 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: Continued surveillance.
Additional harmful effect information: Great sheets of yellow-orange discolored water.
Updated at 12:11 on 3 Dec 2019