| Event name: | CA-91-004 | |
| Country: | CANADA | |
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Nature of the harmful event: |
High Phyto concentration | |
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Event directly affected: |
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| Toxicity detected: | No | |
| Associated syndrome: | ||
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes | |
| Event occurred before in this location: | Yes (Dinophysis norvegica and DTX-1 in mussels were previously found at the same location in early August, 1990) | |
| Individuals to contact: | de FREITAS, Anthony | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Halifax Eastern Shore, Scotia Fundy Region HAB Area code(s): CA-17 |
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| Additional location information: | Mahone Bay, Southern coast of Nova Scotia. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | Late September - November. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Dinophysis norvegica
(10,000 - 4 cells/L)
during the bloom period. |
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | ||
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| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: | ||||||||||||||||||||||||||
| Growth Comments | Not known. | |||||||||||||||||||||||||
| Additional Environmental information: | Water temperature: 15 - 19ºC in September, declining to 10 - 12º C in October. There was no strong thermocline. | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
| Additional information: | A concentrated sample of plankton, composed almost uniquely of Dinophysis norvegica, exhibited no detectable DSP toxins using ADAM/HPLC analysis. | ||||||
| Economic losses: | |||||||
| Management decision: | None required. | ||||||
| Additional harmful effect information: | |||||||
