General Information

Event name: PT-02-001
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: ND-55 g/g)
Associated syndrome: ASP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Mollusc bivalves, mainly Mytilus edulis, Cerastoderma edule, Spisula solida, Donax spp., Venerupis pullastra
Report the outcome of a monitoring programme: Yes (HAB Monitoring programmme.)
Event occurred before in this location: Yes
Individuals to contact: VILARINHO, M da Graa , VALE, Paulo

Location & Date

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Location: Latitude: 39.400000, Longitude: -9.200000
General location information: bidos Lagoon., Central part of NW coast.
HAB Area code(s): PT-03
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2002-05-14
Start: 2002-05-02, End: 2002-05-23
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia australis (150,000 cells/L)
Co-Ocurring Species/Genus: Leptocylindrus danicus (2,000 cells/L)
Lauderia annulata (2,000 cells/L)
Guinardia delicatula (23.500 cells/L)
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): 16.5 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 36 Current Velocity: 0
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
Venerupis pullastra, Donax spp. & others Domoic Acid DA eq 55 g/g LC
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Close the area to bivalve catch
Additional harmful effect information:
Checked at 05:33 on 22 Feb 2018