General Information

Event name: CA-05-011
Country: CANADA
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 126.3ug/g)
Associated syndrome: ASP
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 (Presence of ASP toxins in the Gulf of St. Lawrence since 1998)
Individuals to contact: BONNEAU, Esther , SAUVÉ, Gilbert , STARR, Michel

Location & Date

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Location: Latitude: 51.024167, Longitude: -58.586667
General location information: North coast Mecantina Trough, Quebec Region
HAB Area code(s): CA-01
Additional location information: Q-6; 200km vicinity of Tete-a-la-Baleine
Bloom event dates (yyyy/mm/dd): Event Date:2005-07-10
Quarantine levels dates (yyyy/mm/dd): First detection: 2005-06-26, End: 2005-10-18
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia seriata (680 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): Oxygen saturation %: Current Direction:
Sechhi disk (m): Min. 3.0 Max. 5.0 Salinity: Current Velocity:
Nutrient information: NITRATE: Min. 0.2 Max. 2.6
PHOSPHATE: Min. 0.3 Max. 2.8
SILICATE: Min 0.9 Max. 5.6
Temperature Range During Event: Max: 16 °C, Min: 7 °C
Salinity Range During Event: Max: 31.6, Min: 30.4
Bloom location in the water column:
In situ
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: found in Placopecten magellanicus
Updated at 06:03 on 18 Sep 2013