General Information

Event name: CA-00-001
Country: CANADA
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 262 g/g digestive gland.)
Associated syndrome: ASP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Canadian Food Inspection Agency (CFIA) and monitoring program of harmful algae of Department of Fish)
Event occurred before in this location: Yes (Second year)
Individuals to contact: LEVASSEUR, Maurice

Location & Date

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Location: Latitude: , Longitude:
General location information: various locations, Quebec Region
HAB Area code(s): CA-07
Additional location information: Gulf and St. Lawrence Estuary
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: From July to October 2000.


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia seriata ( cells/L)
P. seriata isolated during the bloom produced ASP in culture.
Pseudo-nitzschia delicatissima ( cells/L)
Co-Ocurring Species/Genus: Chaetoceros spp. (57,000 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): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 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
Kit used: Type of kit used:
Additional information: ASP was measured in scallops, blue mussels and clams.
Economic losses:
Management decision:
Additional harmful effect information:
Updated at 02:49 on 26 Sep 2013