General Information

Event name: PT-90-001
Country: PORTUGAL
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 91.9 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 (Since 1986 there are PSP occurrences due to Gymnodinium catenatum.)
Individuals to contact: SAMPAYO, M Antonia

Location & Date

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Location: Latitude: , Longitude:
General location information: Pranto River., Figueira de Foz.
HAB Area code(s): PT-03
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1990-05-01, End: 1990-10-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: May - October

Microalgae

Causative organism known: Yes
Causative Species/Genus: Gymnodinium catenatum (2,000 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: 18 °C, Min: 15 °C
Salinity Range During Event: Max: 35, Min: 30
Bloom location in the water column:
Growth:
In situ
Growth Comments Most probably
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Molluscs Saxitoxins STX eq 91.9 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Shellfish fisheries closed: May - November due to DSP
Additional harmful effect information: All bivalve molluscs affected. No human illnesses
Checked at 05:37 on 22 Feb 2018
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES