General Information

Event name: CA-94-002
Country: CANADA
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: trace to 630 g DA /100 g meat.)
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: No
Individuals to contact: PARANJAPE, Madhu A. , POWELL, J. Conrad

Location & Date

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Location: Latitude: , Longitude:
General location information: various locations in Newfoundland, Newfoundland Region
HAB Area code(s): CA-31
Additional location information: Various sites in Newfoundland coastal waters.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Various times in 1994.


Causative organism known: No
Causative Species/Genus:
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: 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 Unknown.
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Shellfish meat Domoic Acid DA eq 630 LC
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: No closure for shellfish harvesting, as levels of Domoic Acid were low.
Additional harmful effect information: Effects: NA.
Updated at 02:20 on 20 Jan 2023