General Information

Event name: CA-03-006
Country: CANADA
Nature of the harmful event:
Water Discoloration
Event directly affected:
Aquaculture Fish
Toxicity detected: No
Associated syndrome: OTHER
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 (Red tide has been seen annually in the Passamaquoddy Bay area since 1998, numerous episodes of a red tide in the area since the 1970s.)
Individuals to contact: MARTIN, Jennifer

Location & Date

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Location: Latitude: 45.066667, Longitude: -66.966667
General location information: Northwestern Bay of Fundy, Scotia Fundy Region
HAB Area code(s): CA-22
Additional location information: Passamaquoddy Bay
Bloom event dates (yyyy/mm/dd): Event Date:2003-09-09
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Redtide seen Sept 8-15, 2003.


Causative organism known: Yes
Causative Species/Genus: Mesodinium rubrum (1,340,000 cells/L)
Co-Ocurring Species/Genus: Dictyocha speculum (138,142 cells/L)
Chlorophyll concentration, if known: Fluorescence 6 µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: sunny Turbidity (NTU): Wind direction: N
Stratified water: Oxygen content (nL/L): 10.99 Wind velocity: 7-8 mph
Temperature (°C): 12.9 Oxygen saturation %: 126.2 Current Direction:
Sechhi disk (m): 5.4 Salinity: 31.95 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: 12.9 °C, Min: °C
Salinity Range During Event: Max: 31.95,
Bloom location in the water column:
In situ
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:
Additional harmful effect information:
Created at 06:52 on 11 Jul 2013
Updated at 03:04 on 16 Feb 2018