General Information

Event name: ES-00-006
Country: SPAIN
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Toxicity detected: Yes (Approximate range: > 80 µg STXeq / 100g)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Pla de Vigilancia de Fitoplancton Toxic i Nociu a la Costa Catalana.)
Event occurred before in this location: Yes (Since 1997, and in Barcelona in 1996.)
Individuals to contact: VILA, Magda

Location & Date

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Location: Latitude: 41.083333, Longitude: 1.215000
General location information: Tarragona Harbour., Catalonia, NE Spain.
HAB Area code(s): ES-21
Additional location information: Small cell concentrations (<10000 cells/L) detercted in near confined areas (Barcelona to Ametlla). A secondary A. catenella bloom was detected later in Tarragona harbour (9708/2000 to 15/10/2000), with maximum cell densitix: 115000 cells/L.
Bloom event dates (yyyy/mm/dd): Start: 2000-05-23, End: 2000-05-13
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella (5,052,000 cells/L)
Co-Ocurring Species/Genus: Dinophysis sacculus (5,600 cells/L)
Gyrodinium impudicum (2400 cells/L)
Prorocentrum triestinum (10.000.000 cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Vila, M, Garcés, E., Masó, M and Camp., J. 2001. Is the distribution of the toxic dinoflagellate Alexandrium catenella expanding along the NW Mediterranean coast? MEPS (in press)Vila M., Delgado, M., and Camp, J. 2000. First detection of widespread toxic events caused by Alexandrium catenella in the Mediterranean Sea. Proceedings 9th International Conference on Harmful Algal Blooms (In Press).Vila M., Camp, J., Garcés, E., Masó, M. and Delgado, M. 2001. High resolution spatio-temporal detection of HABs in confined waters in the NW Mediterranean. J. Plankton Research (In Press).

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: 23 °C, Min: 20 °C
Salinity Range During Event: Max: 36, Min: 34
Bloom location in the water column:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mussels Saxitoxins STX eq > 80 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: