General Information

Event name: CA-18-014
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 (HAMP)
Event occurred before in this location:
Individuals to contact: HAIGH, Nicky , McKENZIE, Cynthia

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Upper West Coast of Vancouver Island, BC
HAB Area code(s): CA-35
Additional location information: Esperanza Inlet and Clayoquot Sound
Bloom event dates (yyyy/mm/dd): Event Date:2018-08-10
End: 2018-09-22
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Heterosigma akashiwo (9,200,000 cells/L)
in late August in Clayoquot Sound
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:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column: Whole 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: mass mortality of Aquaculture Salmon Esperanza Inlet and Clayoquot Sound
Management decision:
Additional harmful effect information:
Created at 06:11 on 26 Jun 2020