General Information

Event name: CA-08-001
Country: CANADA
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 7.1 ug/g)
Associated syndrome: ASP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Phytoplankton monitoring in the western Fundy Isles in the Bay of Fundy)
Event occurred before in this location: Yes (Domoic acid was detected in the Fundy area in 1988 and in 1995 above the 20ug/g regulatory level)
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: Lime Kiln Bay
Bloom event dates (yyyy/mm/dd): Event Date:2008-08-12
Quarantine levels dates (yyyy/mm/dd): First detection: 2008-08-18, End: 2008-09-08
Additional date-related information: high concentration of Pseudo-nitzschia cells observed on Aug 12, 2008 to Sept 2, 2008

Microalgae

Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia pseudodelicatissima (1600000 cells/L)
Aug 12, 2008 verified by SEM
Co-Ocurring Species/Genus: Leptocylindrus minimus (220000 cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Eight other species of Pseudo-nitzschia were found co-existing in the samples. In the August samples, 63-86% of the total Psn cell counts consisted of P. pesudodelicatissima while the P. seriata- group was more abundant (over 50%) in September.
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: No Oxygen content (nL/L): 6.6 @1m Wind velocity: calm
Temperature (°C): 13.1@1m Oxygen saturation %: 108.3@1m Current Direction:
Sechhi disk (m): 3.0 Salinity: 30.83@1m Current Velocity:
Nutrient information:
Temperature Range During Event: Max: 13.1 °C, Min: 12.1 °C
Salinity Range During Event: Max: 31.87, Min: 30.83
Bloom location in the water column: Whole column
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Placopecten magellanicus Domoic Acid DA 7.1 ug/ g Other
Kit used: No Type of kit used:
Additional information: HPLC
Economic losses:
Management decision: Shelfish harvesting areas were closed in the entire Bay of Fundy region as a precautionary measure.
Additional harmful effect information:
Updated at 03:52 on 7 Feb 2018