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General Information

Event name: CA-04-006
Country: CANADA
Nature of the harmful event:
 Water Discoloration , High Phyto concentration , 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: Yes
Individuals to contact: HAIGH, Nicky

Location & Date

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Location: Latitude: 50.100000, Longitude: -127.200000
General location information: Upper West coast Vancouver Island, Pacific Region
HAB Area code(s): CA-35
Additional location information: Bloom was particularly thick in SE Kyuquot Sound - Amai Inlet and environs.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Bloom occurred last week of August through mid-September.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Heterosigma akashiwo (140,000,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Heterosigma distributed throughout the water column - in Amai Inlet, Aug 27 samples had 12,000,000 cells/L at 30m, and 7,000,000 cells/L at 60m depths.
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:
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 02:58 on 16 Feb 2018
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES