General Information

Event name: CA-04-001
Country: CANADA
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Aquaculture Fish , Shellfish , Humans
Toxicity detected: Yes (Approximate range: 4000 g STX equiv./100g)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Mussels
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 (PSP detected annually since 1943.)
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: Wolves
Bloom event dates (yyyy/mm/dd): Event Date:2004-08-03
Quarantine levels dates (yyyy/mm/dd): First detection: 2004-05-17,
Additional date-related information: Some shellfish beds remained closed to harvesting through December.Alexandrium cells present in low numbers in May-June ; with very high concentrations from mid- July to early August


Causative organism known: Yes
Causative Species/Genus: Alexandrium fundyense (319,000 cells/L)
Co-Ocurring Species/Genus: Pseudo-nitzschia delicatissima (19,200 cells/L)
Pseudo-nitzschia pseudodelicatissima group.
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: foggy Turbidity (NTU): Wind direction: SW
Stratified water: No Oxygen content (nL/L): 8.22 Wind velocity: 5-10 knots
Temperature (°C): 9.9 Oxygen saturation %: 132.7 Current Direction:
Sechhi disk (m): 4.8 Salinity: 31.6 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: 12.0 °C, Min: 9.9 °C
Salinity Range During Event: Max: 31.6, Min: 31.3
Bloom location in the water column: Whole column
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mytilus edulis Saxitoxins STX eq 4 000 ugSXTeq/100g Bioassay-Mouse
Mya arenaria Saxitoxins STX eq 298ug/100g Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses: loss of aquaculture fish, shelfish harvesting areas closed for 6 months; some areas are still closed
Management decision: Shellfish harvesting areas closed when toxin values exceeded 80 ug/100g; education/notification through newspapers
Additional harmful effect information: 3 people suffered from PSP intoxication - one person hospitalized for 8 days but has fully recovered.
Created at 04:54 on 22 Jul 2013
Updated at 03:50 on 19 Sep 2013