General Information

Event name: CA-09-007
Country: CANADA
Nature of the harmful event:
Mass mortalities
Event directly affected:
Aquaculture Fish
Toxicity detected: No
Associated syndrome: OTHER
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Harmful Algae Monitoring Program)
Event occurred before in this location: Yes
Individuals to contact: HAIGH, Nicky

Location & Date

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Location: Latitude: 52.780000, Longitude: -128.270000
General location information: Central Coast, Pacific Region
HAB Area code(s): CA-39
Additional location information: Bloom was widespread around Klemtu, with highest concentrations measured at Sheep Pass. On August 29 bloom stretched south past Cap Caution (51.17N, 127.78W)
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2009-08-24,
Additional date-related information: Bloom lasted about two weeks


Causative organism known: Yes
Causative Species/Genus: Heterosigma akashiwo (25000000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Bloom was throughout the water column at Sheep Pass: 25000000/L at 1m, 19000000/L at 5m, and 4000000/L at 10m on August 24
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:
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:
Economic losses:
Management decision:
Additional harmful effect information:
Updated at 01:39 on 16 Feb 2018