General Information

Event name: PT-23-006
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 43 mg DA (DA+EA)/kg)
Associated syndrome: ASP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (SNMB)
Event occurred before in this location: Yes
Individuals to contact: Alexandra Silva

Location & Date

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Location: Latitude: , Longitude:
General location information: RIAV 1 to 4, West coast
HAB Area code(s): PT-03
Additional location information: estuarine/ Rias system
Bloom event dates (yyyy/mm/dd): Event Date:2023-08-09
Quarantine levels dates (yyyy/mm/dd): First detection: 2023-08-06, End: 2023-08-26
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Pseudo-nitzschia spp. (246,000 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: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Cerastoderma edulis Domoic Acid 43 mg DA (DA+EA)/kg LC-UV
Kit used: Type of kit used:
Additional information: assay type-HPLC-UV
Economic losses:
Management decision: ban on harvesting
Additional harmful effect information:
Created at 10:11 on 22 Apr 2024