General Information

Event name: FR-93-015
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: No
Individuals to contact: SCHWEIBOLD Laura

Location & Date

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Location: Latitude: , Longitude:
General location information: Vilaine Bay and Loire Estuary., SOUTHERN BRITTANY and from LOIRE to GIRANDE.
HAB Area code(s): FR-08 FR-09
Additional location information: Vilaine Bay (site 057) and Loire Estuary (site 060). Area 4-5.
Bloom event dates (yyyy/mm/dd): Start: 1993-05-02, End: 1993-05-10
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Rhizosolenia setigera (280,000 cells/L)
In Vilaine.
Rhizosolenia delicatula (1,564,000 cells/L)
In Loire.
Rhizosolenia delicatula (2,900,000 cells/L)
In Vilaine.
Rhizosolenia setigera (400,000 cells/L)
In Loire.
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:
Growth Comments No data available.
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: Green to brown water.
Updated at 02:14 on 3 Dec 2019
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