General Information

Event name: FR-93-011
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 (1989, 1990, 1991, 1992.)
Individuals to contact:

Location & Date

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Location: Latitude: , Longitude:
General location information: Audience Bay (site 040)., SOUTHERN BRITTANY.
HAB Area code(s): FR-07
Additional location information: Area 4.
Bloom event dates (yyyy/mm/dd): Start: 1993-01-04, End: 1993-02-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Chaetoceros armatum (29,400,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: Up to 275 mg/m≥ Chl™. 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): 4.5 - 20 Salinity: Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: 10 °C, Min: 8 °C
Salinity Range During Event: Max: 35, Min: 33
Bloom location in the water column:
Growth:
In situ
Growth Comments Probably in situ growth.
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: Brown-greenish water.
Updated at 02:10 on 3 Dec 2019
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