Harmful Algal Information System: Event CA-90-008

General Information

Event name:	CA-90-008
Country:	CANADA
Nature of the harmful event:	Seafood toxins
Event directly affected:	Shellfish
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 (Yearly.)
Individuals to contact:	MARTIN, Jennifer

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Northwestern Bay of Fundy, Scotia Fundy Region 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:	Late June-early September

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Alexandrium fundyense (68,000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	Determined by surface water samples preserved in 2.5% formalin acetic acid and counted with an inverted microscope.
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:	32	Current Velocity:	0

Nutrient information:

Temperature Range During Event:

Max: 13 °C, Min: 9 °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Advected

Growth Comments

Advected populations from well mixed offshore populations of Alexandrium fundyense.

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:

Affected areas were closed to the harvesting of shellfish.

Additional harmful effect information:

Marine organisms (mussels, fost shell clams, scallops, etc.) accumulated PSP toxins. PSP extractions were conduced at Black's Harbour, New Brunswick, Department of Fisheries and Oceans Laboratory. No water discolouration.

Updated at 08:14 on 25 Sep 2013