General Information

Event name: CA-92-012
Country: CANADA
Nature of the harmful event:
Seafood toxins
Event directly affected:
Humans
Toxicity detected: Yes (Approximate range: 10,000 g STXeq /100 g)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Shellfish.
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (Earliest recorded for this locale. However, this area typically has unusually early blooms of PSP-toxic phytoplankton, with blooms occurring in late April - early May over the last several years.)
Individuals to contact: FORBES, J. Roderick

Location & Date

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Location: Latitude: , Longitude:
General location information: Upper Strait of Georgia, Pacific Region
HAB Area code(s): CA-38
Additional location information: Kingcome Inlet
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Mid April.

Microalgae

Causative organism known: No
Causative Species/Genus: Alexandrium catenella ( cells/L)
Probably
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Causative species not determined - assumed to be Alexandrium catenella.
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: No Oxygen content (nL/L): Wind velocity:
Temperature (°C): 10.5 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:
In situ
Growth Comments Most probably 'in situ'.
Additional Environmental information: Water temperatures 10.5 C at surface, 8.5 C at 20m.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Shellfish Saxitoxins 10,000 Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Affected area closed to harvesting of shellfish.
Additional harmful effect information:
Updated at 07:42 on 25 Sep 2013
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES