Harmful Algal Information System: Event CA-95-002

General Information

Event name:	CA-95-002
Country:	CANADA
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes (Approximate range: 460 痢 DA / 100 g.)
Associated syndrome:
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	Yes (Domoic acid was first detected during 1987 in the Gulf of St. Lawrence and domoic acid has been detected most years since.)
Individuals to contact:	AERSENAULT, Edmond

Location:	Latitude: , Longitude:
General location information:	South coast St. Lawrence Estuary, Quebec Region HAB Area code(s): CA-07
Additional location information:
Bloom event dates (yyyy/mm/dd):	Event Date:1995-10-18
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	October.

Causative organism known:	Yes
Causative Species/Genus:	Pseudo-nitzschia multiseries (438,000 cells/L) New London Bay, October 18.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	Cells were observed through the Gulf of St. Lawrence also
Event-related bibliography:

Nutrient information:

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Advected
In situ

Growth Comments

In situ as well as advected.

Additional Environmental information:

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Mytilus edulis (October 18, New London Bay)	Domoic Acid	DA eq	460	Bioassay-Mouse

Kit used:

Type of kit used:

Additional information:

Economic losses:

Management decision:

No toxins in shellfish exceeded the regulatory limit of 20 痢/g. Therefore there were non closures dure to domoic acid.

Additional harmful effect information:

Updated at 05:36 on 17 Sep 2018