Harmful Algal Information System: Event CA-96-005

General Information

Event name:	CA-96-005
Country:	CANADA
Nature of the harmful event:
Event directly affected:
Toxicity detected:	No
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:	No
Individuals to contact:	LEVASSEUR, Maurice , SAUVÉ, Gilbert

Location:	Latitude: , Longitude:
General location information:	Iles-de-la-Madeline, Quebec Region HAB Area code(s): CA-23
Additional location information:	Iles-de-la-Madeline Station. Harmful algae are monitored on a weekly basis at 11 stations in the Gulf of St. Lawrence since 1989 (See Complementary Information)
Bloom event dates (yyyy/mm/dd):	Event Date:1996-09-09 Start: 1996-09-09,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Causative organism known:	Yes
Causative Species/Genus:	Prorocentrum lima (120 cells/L) Highest concentration.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:

Weather:	1996 was atypical. Between 19 and 21 July, more than 225 mm of rain fell over the Saguenay river area in the Province of Quebec. This unusual weather resulted in the flooding of several towns along the Saguenay River. In the St. Lawrence stuary, the heavy	Turbidity (NTU):	Wind direction:
Stratified water:	No	Oxygen content (nL/L):	Wind velocity:
Temperature (°C):		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

Additional Environmental 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:

Additional harmful effect information:

In 1996 three persons became seriuosly ill and were hospitalized after eating toxic clams during the red-tide event.

Updated at 08:38 on 25 Sep 2013