General Information

Event name: PT-21-001
Country: PORTUGAL
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: >75ugAD/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

[View larger map]
Location: Latitude: , Longitude:
General location information: L1+L2+L3 + Aveiro Ria (Viana do Castelo - Aveiro, NW coast and adjacent Ria
HAB Area code(s): PT-01
Additional location information: PT01+PT02+PT03 the event started in the coastal area and enter an Adjacente Ria (Aveiro Ria)
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2021-08-05, End: 2021-10-21
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia spp. (514140 cells/L)
seriata group
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:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Ensis Domoic Acid >75ugDA LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Ban on harvesting for the coastal area and adjacent Ria during almost 3 months
Additional harmful effect information:
Created at 10:56 on 23 Feb 2022
Updated at 01:55 on 17 Mar 2022
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES