General Information

Event name: CA-12-004
Country: CANADA
Nature of the harmful event:
High Phyto concentration
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 Monitoring Program)
Event occurred before in this location: Yes (Fish mortalities associated with this bloom were not confirmed)
Individuals to contact: HAIGH, Nicky

Location & Date

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Location: Latitude: , Longitude:
General location information: Lower Stait of Georgia, Pacific Region
HAB Area code(s): CA-37
Additional location information: Sechelt Inlet
Bloom event dates (yyyy/mm/dd): Start: 2012-04-26, End: 2012-06-21
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Bloom peaked around the third week in May


Causative organism known: Yes
Causative Species/Genus: Chaetoceros convolutus Castracane 1886 (65 000 cells/L)
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:
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:
Created at 05:47 on 18 Mar 2013
Updated at 01:30 on 16 Feb 2018