General Information

Event name: TN-11-001
Country: TUNISIA
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Other Terrestrial
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (spring and summer 2088, 2010, 2011)
Individuals to contact: HAMZA ASMA

Location & Date

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Location: Latitude: 33.852222, Longitude: 11.040278
General location information: North of Jerba island (M3),
HAB Area code(s): TN-01
Additional location information: 335108 N 1102 25 E untill 3353 62 N 11 02 E and from surface to 17m depth
Bloom event dates (yyyy/mm/dd): Event Date:2011-may
Start: 2011may24, End: 2011may30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Microcystis sp. (18400 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: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 24 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 38 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column: Whole column
Growth Comments
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:
Additional harmful effect information: