General Information

Event name: CA-02-009
Country: CANADA
Nature of the harmful event:
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: No
Individuals to contact: WHYTE, Ian

Location & Date

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Location: Latitude: 49.882778, Longitude: -126.815556
General location information: Upper West coast of Vancouver Island, Pacific Region
HAB Area code(s): CA-35
Additional location information: Esperanza Inlet. Chattonella species was also reported in Kyuquot and Clayoquot Sounds
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Bloom in Esperanza lasted Sept 3-7 '02


Causative organism known: Yes
Causative Species/Genus: Chattonella sp. (200,000 cells/L)
Chattonella cf. Marina
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: cell counts above 50,000/L appeared to be toxic to fish; Atlantic salmon mortalities were ~1000 tonnes in a period of two days
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Yes Oxygen content (nL/L): 3.3 - 5.7 Wind velocity:
Temperature (°C): 12.3@1m, 10.3@1 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 32@1m, 35@ Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: 14 °C, Min: 10 °C
Salinity Range During Event: Max: 35, Min: 31
Bloom location in the water column: Whole column
Growth Comments Appears to have been in situ growth
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 03:06 on 16 Feb 2018