General Information

Event name: CA-09-029
Country: CANADA
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 82ugSTXeq/100g-1303ugSTXeq/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)
Event occurred before in this location: Yes (Psp toxin events are a recurrent phenomenon in the Estuary and Gulf of St. Lawrence)
Individuals to contact: SAUVÉ, Gilbert , STARR, Michel

Location & Date

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Location: Latitude: 50.121389, Longitude: -66.598056
General location information: North coast Anticosti Gyre, Quebec Region
HAB Area code(s): CA-04
Additional location information: Q-3; 200 km vicinity of Sept-Iles; Natural mussel harvesting area
Bloom event dates (yyyy/mm/dd): Event Date:2009-07-06
Start: 2009-06-29, End: 2009-07-05
Quarantine levels dates (yyyy/mm/dd): First detection: 2009-06-22, End: 2009-07-20
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium tamarense (620 cells/L)
2009-07-05; low abundance
Co-Ocurring Species/Genus: Alexandrium ostenfeldii (40 cells/L)
2009-06-15 & 2009-06-29
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): Min. 1.5 Max. 2.5 Salinity: Current Velocity:
Nutrient information: NITRATE: Min. 0.28 Max. 9.40
PHOSPHATE: Min. 0.31 Max. 0.44
SILICATE: Min. 4.73 Max. 13.99
Temperature Range During Event: Max: 19 °C, Min: 12 °C
Salinity Range During Event: Max: 26, Min: 20.8
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
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Updated at 02:24 on 18 Sep 2013