General Information

Event name: ES-99-018
Country: SPAIN
Nature of the harmful event:
Event directly affected:
Toxicity detected: Yes (Approximate range: ASP bivalve (mussels and scallops) toxicity.)
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: Yes (See our previous HAB reports.)
Individuals to contact: MANEIRO, Juan , PAZOS, Yolanda , MOROÑO, Ángeles

Location & Date

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Location: Latitude: , Longitude:
General location information: Rías of Vigo, Pontevedra, Arousa, Muros and A, Galicia, NW Spain
HAB Area code(s): ES-05 ES-07 ES-08
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: From early to mid-May in Vigo, Pontevedra, Arousa and Muros; from mid-May to early June in the Ría of Ares.


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia spp. (650,760 cells/L)
Maximun cell concentration in the inner part of Ría of Pontevedra.
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): 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 Comments Probably in situ growth
Additional Environmental information: termohaline stability during the bloom and after downwelling conditions

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: Harvesting was closed in culture areas when domoic acid concentration was more than 20 ppm
Additional harmful effect information: