General Information

Event name: CA-90-003
Country: CANADA
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 1,600 DA.)
Associated syndrome: ASP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (First recorded in autumn 1987, and has recurred during the autumn of 1988.)
Individuals to contact: SMITH, John C.

Location & Date

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Location: Latitude: , Longitude:
General location information: Eastern Prince Edward Island, Gulf Region
HAB Area code(s): CA-24
Additional location information: Cardigan Bay
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Early August-late November.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Nitzschia pungens (780,000 cells/L)
in late November (Brudenell River)
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): Salinity: Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event: Max: 32, Min: 29
Bloom location in the water column:
Growth:
In situ
Growth Comments Most probably
Additional Environmental information: Temperature range during the bloom period: 24 C in August 4C in November.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Shellfish Domoic Acid DA eq 1,600 ppm LC
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: The affected areas were closed to harvesting of shellfish.
Additional harmful effect information:
Updated at 06:55 on 25 Sep 2013
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES