General Information

Event name: FR-92-023
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 (1985, 1988 (290,000,000 cells/L); 1989 (4,000,000 cells/L).)
Individuals to contact: RATISKOL, Gilles

Location & Date

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Location: Latitude: , Longitude:
General location information: North of Marennes, Oleron Basin., From Loire Estuary to Gironde Estuary.
HAB Area code(s): FR-09
Additional location information: Area 5.
Bloom event dates (yyyy/mm/dd): Event Date:1992-07-20
Start: 1992-07-20,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Gymnodinium sp. (4,000,000 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: Advected
In situ
Growth Comments Probably both.
Additional Environmental information:

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: Very green water.
Updated at 02:03 on 3 Dec 2019
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