General Information

Event name: ES-90-007
Country: SPAIN
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 50 g STXeq / 100 g.)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (May 1989 in the same area.)
Individuals to contact: DELGADO, Maximino

Location & Date

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Location: Latitude: , Longitude:
General location information: Alfacs Bay (Ebro Delta)., Catalonia, NE Spain.
HAB Area code(s): ES-21
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: January.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium minutum ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Abnormal calm wheather during this winter, resulting in stratification of the water column. 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: 16 °C, Min: 14 °C
Salinity Range During Event: Max: 37, Min: 34
Bloom location in the water column:
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mussels Saxitoxins STX eq 50 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: To intensify the control.
Additional harmful effect information: (permisive level in Spanish normative: 80 g/100 g meat). Not known human or animal illnesses.
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES