General Information

Event name: PT-21-009
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 161ugOAequiv/kg)
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes
Individuals to contact: Alexandra Silva

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: L7a, SW coast
HAB Area code(s): PT-05
Additional location information: coastal
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2021-09-24, End: 2021-10-15
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis ovum (F.Schütt) T.H.Abé (40 cells/L)
Co-Ocurring Species/Genus: Dinophysis rotundata (20 cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: the cells during the event were not high but they were present at site for a few weeks prior
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
Mityllus Okadaic Acid 161OAequiv/Kg LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: ban on harvesting
Additional harmful effect information:
Created at 10:36 on 17 Mar 2022
Updated at 10:41 on 17 Mar 2022