Harmful Algal Information System: Event CA-88-003

General Information

Event name:	CA-88-003
Country:	CANADA
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes
Associated syndrome:	ASP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	No
Event occurred before in this location:	Yes (First recorded as a genuine phycotoxin problem in November 1987 in the same area, although much more restricted in space)
Individuals to contact:	WORMS, Jean

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Eastern Prince Edward Island, Gulf Region HAB Area code(s): CA-24
Additional location information:	Eastern coast of Prince Edward Island including - Murray River - Brudenell River - Montague River - Cardigan River - St Mary's Bay
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	Started beginning of November 1988

Microalgae

Causative organism known:	No
Causative Species/Genus:	Nitzschia pungens f. multiseries (1200000 cells/L) determined by water pumped through 20 m Nytex and preserved in lugol
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:	Worms et al 1991

Environmental Conditions

Weather:		Turbidity (NTU):		Wind direction:
Stratified water:		Oxygen content (nL/L):		Wind velocity:
Temperature (°C):	8 - -1.3	Oxygen saturation %:		Current Direction:
Sechhi disk (m):		Salinity:	28	Current Velocity:

Nutrient information:

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Growth Comments

bloom likely developed from a resident population of Nitzschia although the possibility of advection of cells from the outside of the bays has not yet been eliminated

Additional Environmental information:

Water Column: mixed

Toxin Assay Information

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Midulus edulis	Domoic Acid		280ug/g	LC-FD

Kit used:

Type of kit used:

Additional information:

Economic losses:

Management decision:

All affected areas closed to harvesting of shellfish.

Additional harmful effect information:

Updated at 08:48 on 26 Sep 2018