Harmful Algal Information System: Event CA-91-002

General Information

Event name:	CA-91-002
Country:	CANADA
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes
Associated syndrome:	PSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	Yes (Closures of shellfish harvesting areas due to unacceptable levels of PSP toxins are an annual occurrence in the Bay of Fundy.)
Individuals to contact:	MARTIN, Jennifer

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Northwestern Bay of Fundy., Scotia Fundy HAB Area code(s): CA-22
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	Shellfish harvesting areas were closed at various locations in the southwest between June and August.

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Alexandrium fundyense ( 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:	No	Oxygen content (nL/L):		Wind velocity:
Temperature (°C):		Oxygen saturation %:		Current Direction:
Sechhi disk (m):		Salinity:	32	Current Velocity:	0

Nutrient information:

Temperature Range During Event:

Max: 12 °C, Min: 8 °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Advected

Growth Comments

Additional Environmental information:

Water column: mixed inshore, stratified offshore.

Toxin Assay Information

Species containing the toxin

Toxin type

Toxin details

Max. concentration

Assay type

Kit used:

Type of kit used:

Additional information:

Extractions were done at the Department of Fisheries and Oceans Inspection Laboratory in Black's Harbour, New Brunswick. Unacceptable levels of PSP toxins were detected in shellfish tissues.

Economic losses:

Management decision:

Shellfish harvesting beds were closed to harvesting during the time when soft-shell clams had levels of PSP toxins above 80 �g/100g. The Bay of Fundy in closed to harvesting of blue mussels throughout the year.

Additional harmful effect information:

Updated at 07:31 on 2 Apr 2014