| Event name: | CA-02-008 | |
| Country: | CANADA | |
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Nature of the harmful event: |
High Phyto concentration , Mass mortalities | |
|
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 (Harmful Algae Monitoring Program) | |
| Event occurred before in this location: | No | |
| Individuals to contact: | WHYTE, Ian | |
| Location: | Latitude: 50.316667, Longitude: -125.016667 | |
| General location information: |
Upper Strait of Georgis, Pacific Region HAB Area code(s): CA-38 |
|
| Additional location information: | Fairly widespread bloom in area between E Quadra Island and Toba Inlet. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | Bloom lasted Aug 8 - 26 approximately | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Chaetoceros convolutus
(180,000 cells/L)
|
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | Mortality occurred when fish were fed with Ch. convolutus at ~80,000 cells/L. | |
| Event-related bibliography: | ||
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| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: 17 °C, Min: 9 °C | |||||||||||||||||||||||||
| Salinity Range During Event: | Max: 32, Min: 20 | |||||||||||||||||||||||||
| Bloom location in the water column: | Whole column | |||||||||||||||||||||||||
| Growth: |
In situ |
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| Growth Comments | ||||||||||||||||||||||||||
| Additional Environmental information: | bloom seemed to have been catalysed by lowering of temperature at 5m and 10m ~4C from previous week | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | |||||||
| Economic losses: | |||||||
| Management decision: | |||||||
| Additional harmful effect information: | some mortality seen; mechanically harmful species | ||||||
