Harmful Algal Information System: Event CA-15-013

General Information

Event name:	CA-15-013
Country:	CANADA
Nature of the harmful event:	High Phyto concentration
Event directly affected:	Shellfish
Toxicity detected:	Yes (Approximate range: 75ug/g)
Associated syndrome:	ASP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes (CFIA)
Event occurred before in this location:	Yes
Individuals to contact:	HAIGH, Nicky

Location & Date

[View larger map]

Location:	Latitude: , Longitude:
General location information:	West Vancouver Island, West Coast Canada HAB Area code(s): CA-36
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):	First detection: 2015-04-29,
Additional date-related information:	bloom had two peaks May-June and August

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Pseudo-nitzschia sp. ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	ID of P. australis being causative species for DA toxin was not able to be confirmed. Several species of Pz species observed.
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:	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

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:

The bloom continued and expanded along the entire coastline, appearing to peak around June 17, 2015. The entire west coast was closed throughout June. Levels were decreasing by June 29th. DA levels in mussels were 10xless thatn those reported in the US.

Additional harmful effect information:

Created at 09:31 on 21 Sep 2018