General Information

Event name: CA-08-073
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:
Individuals to contact: HAIGH, Nicky

Location & Date

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Location: Latitude: 49.630000, Longitude: -123.799722
General location information: Lower Strait of Georgia, Pacific Region
HAB Area code(s): CA-37
Additional location information: Sechelt Inlet; Bloom affected a few farm sites, on and off for ~2 weeks
Bloom event dates (yyyy/mm/dd): Event Date:2008-04-06
Quarantine levels dates (yyyy/mm/dd): First detection: 2008-04-07,
Additional date-related information: Bloom lasted about two weeks


Causative organism known: Yes
Causative Species/Genus: Chrysochromulina spp. (~1,500,00 cells/L)
approximate cell count from live sample
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Mortalities were mostly broodstock salmon. Effects on fish (irritation, etc.) were seen on and off.
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): 6-11.6mg/L Wind velocity:
Temperature (°C): 7.8-8.6 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 21-30 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: Kunechin Point, Salmon Inlet; April 6-7, 2008

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 01:42 on 16 Feb 2018