General Information

Event name: ES-03-023
Country: SPAIN
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Planktonic life , Humans
Toxicity detected: Yes
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (1. EU Project STRATEGY EVK3-2001-00046. New strategy of monitoring and management of HABs in the Med)
Event occurred before in this location: Yes (since 1996, in Barcelona harbour, and since 1998 in Tarragona harbour)
Individuals to contact: VILA, Magda

Location & Date

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Location: Latitude: 41.108333, Longitude: 1.251667
General location information: Tarragona harbour., Catalonia, NE Spain.
HAB Area code(s): ES-21
Additional location information: Bloom confined in a harbour
Bloom event dates (yyyy/mm/dd): Event Date:2003-08-31
Start: 2003-05-18, End: 2003-11-09
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella (26,447,339 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: Chlorophyll concentration: 83.3 µg/l µg/l
Additional bloom information:
Event-related bibliography: Vila M, Garcés E, Masó M, Camp J (2001) Is the distribution of the toxic dinoflagellate Alexandrium catenella expanding along the NW Mediterranean coast? Mar Ecol Prog Ser , 222, 73-83. Vila M, Delgado M, Camp J (2001) First detection of widespread toxic events caused by Alexandrium catenella in the Mediterranean Sea. In: Hallegraeff GM, Blackburn SI, Bolch CJ i Lewis RJ (ed) Harmful Algal Blooms 2000. Proc. 9th Int. Conf. Harmful Algal Blooms. IOC, Paris, p 8-11. Vila M, Camp J, Garcés E, Masó M, Delgado M (2001) High resolution spatio-temporal detection of potentially harmful dinoflagellates in confined waters of the NW Mediterranean. J. Plankton Res., 23 (5), 497-514 Vila M., M. Masó, E. Garcés, N. Sampedro, I. Bravo, A. Luglié, K. van Lenning, S. Anglés, B. Puig and J. Camp (2004). Recurrent blooms of Alexandrium catenella in Mediterranean confined waters. Rapp. Comm. Int. Mer Médit., 37, p. 455

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Yes Oxygen content (nL/L): Wind velocity:
Temperature (°C): 24.6 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 37.7 Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: 29 °C, Min: 16 °C
Salinity Range During Event: Max: 37, Min: 31
Bloom location in the water column:
In situ
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: