General Information

Event name: CA-02-005
Country: CANADA
Nature of the harmful event:
Water Discoloration , Mass mortalities
Event directly affected:
Aquaculture Fish
Toxicity detected: No
Associated syndrome: OTHER
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Harmful Algae Monitoring Program)
Event occurred before in this location: No
Individuals to contact: WHYTE, Ian

Location & Date

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Location: Latitude: 49.216667, Longitude: -123.950000
General location information: Lower Strait of Georgia, Pacific Region
HAB Area code(s): CA-37
Additional location information: Departure Bay
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Bloom came in and out of Departure Bay from mid-June to mid-July


Causative organism known: Yes
Causative Species/Genus: Heterosigma akashiwo (14,000,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: sunny and warm Turbidity (NTU): Wind direction: NW
Stratified water: Yes Oxygen content (nL/L): 8.7 @1m Wind velocity:
Temperature (°C): 16.9 @1m, 13.9@ Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 19@1m, 28 Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: 20 °C, Min: 13 °C
Salinity Range During Event: Max: 28, Min: 16
Bloom location in the water column:
Growth: Advected
Growth Comments bloom was associated with the Fraser River Plume
Additional Environmental information: Wing velocity: lt-mod.

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: limited mortalities (only a few fish on site)
Updated at 03:09 on 16 Feb 2018