General Information

Event name: ES-97-002
Country: SPAIN
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: > 20 ppm DA.)
Associated syndrome: ASP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Monitoring programme of the Centro de Control da Calidade do Medio Mariño.)
Event occurred before in this location: No
Individuals to contact: MANEIRO, Juan , PAZOS, Yolanda , MOROÑO, Ángeles

Location & Date

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Location: Latitude: , Longitude:
General location information: Rias of Vigo, Pontevedra, Muros and Ares., Galicia, NW Spain.
HAB Area code(s): ES-05 ES-07 ES-08
Additional location information: Rías of Vigo, Pontevedra, Muros and Ares.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: On April in the Rías of Vigo, Pontevedra, Muros and Ares. On October in the Rías of Vigo and Pontevedra.


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia spp. (500,000 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: 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: Advected
In situ
Growth Comments The population that appeared on April was in situ growth while the October population was probably advected.
Additional Environmental information: Variable conditions.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mussels Domoic Acid DA eq LC
Scallops Domoic Acid DA eq LC
Kit used: No Type of kit used:
Additional information: ASP bivalve (mussels and scallops) toxicity.
Economic losses:
Management decision: Harvesting was closed in culture areas when domoic acid concentration was more than 20 ppm.
Additional harmful effect information: