General Information

Event name: PT-90-004
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (They are common species in portuguese waters, since 1987 DSP problems have been recorded in Setúbal - Coastal zone, Lisbon - Coastal zone, Peniche - Obidos Lagoon, Figueira da Foz - Pranto River and Mondego estuary and Matosinchos - Coastal zone. First record of DSP at Algarve coast - Portimao - Arado estuary.)
Individuals to contact: SAMPAYO, Mª Antonia

Location & Date

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Location: Latitude: , Longitude:
General location information: Portimao - Arado estuary, Algarve.
HAB Area code(s): PT-06
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: May - June.


Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. (1,600 cells/L)
Dinophysis acuminata ( cells/L)
Dinophysis caudata ( cells/L)
Dinophysis sacculus ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Dinophysis spp mainly D. acuminata, D. caudata, D. sacculus.
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: 23 °C, Min: 14 °C
Salinity Range During Event: Max: 36, Min: 24
Bloom location in the water column:
In situ
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Shellfish fisheries closed: May - November due to E. coli high values
Additional harmful effect information: All bivalve molluscs affected. No human illnesses.
Checked at 05:37 on 22 Feb 2018