General Information

Event name: ES-94-006
Country: SPAIN
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: PSP
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 (Blooms of this specie were recorded in the Rías Baixas in autumn in 1981, 1985, 1986, 1987, 1988, 1990 and 1993. In the three later years, small populations were also found during summer.)
Individuals to contact: MANEIRO, Juan , MARIÑO, Joaquin , PAZOS, Yolanda

Location & Date

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Location: Latitude: , Longitude:
General location information: Pontevedra, Muros, Vigo and Arousa., Galicia, NW Spain.
HAB Area code(s): ES-07 ES-08
Additional location information: Some parts of the rías of Pontevedra, Muros, Vigo and Arousa, specially in their mouths.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: October - December.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Gymnodinium catenatum (22,720 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: 15 °C, Min: 13 °C
Salinity Range During Event: Max: 35, Min: 33
Bloom location in the water column:
Growth: Advected
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Saxitoxins STX eq 2,650 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Harvesting was closed when DSP toxin content was equal or higher than reached 80 µg equiv. STX/100 g meat.
Additional harmful effect information:
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES