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General Information

Event name: CA-04-027
Country: CANADA
Nature of the harmful event:
 High Phyto concentration , Seafood toxins
Event directly affected:
 Shellfish
Toxicity detected: Yes (Approximate range: 6069ug/100g)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Monitoring Program of Toxic and Harmful Algae)
Event occurred before in this location: Yes (PSP toxins recurrently accumulate year after year in the Estuary and Gulf of St. Lawrence)
Individuals to contact: BONNEAU, Esther

Location & Date

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Location: Latitude: 49.019722, Longitude: -68.429722
General location information: North coast St. Lawrence Estuary, Quebec Region
HAB Area code(s): CA-05
Additional location information: 200 km vicinity of Baie Comeau; natural mussel harvesting area
Bloom event dates (yyyy/mm/dd): Event Date:2004-07-31
Quarantine levels dates (yyyy/mm/dd): First detection: 2004-07-10, End: 2004-11-27
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium tamarense (5240 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): 16 Oxygen saturation %: Current Direction:
Sechhi disk (m): 5 Salinity: 26.2 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
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 08:02 on 22 Jul 2013
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES