General Information

Event name: ES-99-008
Country: SPAIN
Nature of the harmful event:
Event directly affected:
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 (January 1996, May 1996, March 1997, November 1998 and March 1998.)
Individuals to contact: VILA, Magda

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Several harbours (Port Olimpic, Arenys harbou, Catalonia, NE Spain
HAB Area code(s): ES-22 ES-23
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: January-March at P. Olimpic and Arenys harbour. June-August at Estartit harbour.


Causative organism known: Yes
Causative Species/Genus: Alexandrium minutum (7,6 x (10) cells/L)
Up to 7,6x(10)5 cells/L
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: A. minutum was only detected inside the harbours, so toxicity wasn’t analized. Concentrations below (10)4 cells/L at Vilanova, Garraf, P. Olimpic, Premià, Arenys and Blanes harbours during June-August
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:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
In situ
Growth Comments
Additional Environmental information: P. Olimpic: Salinity 37.5-38.2 psu; Temp: 13.0-15.0ºC Arenys: Salinity 35.2-37.5 psu; Temp: 13.0-15.7ºC Estartit: Salinity 37.2-37.8 psu; Temp: 23.0-24.9ºC

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: Increase of the number of phytoplankton samples in the harbours and sorrounding open waters. Increase of the surveillance in the harbours affected to prevent the illegal extraction of mussels.
Additional harmful effect information: A. minutum was only detected inside the harbours, so toxicity wasn’t analized.