| Event name: | CA-08-069 | |
| Country: | CANADA | |
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Nature of the harmful event: |
Seafood toxins | |
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Event directly affected: |
Shellfish | |
| Toxicity detected: | Yes (Approximate range: 53.5ug Domoic acid/g-238.2ug Domoic acid/g) | |
| Associated syndrome: | ASP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes (Monitoring Program of Toxic and Harmful Algae) | |
| Event occurred before in this location: | Yes (Presence of ASP toxins in the Gulf of St. Lawrence since 1998) | |
| Individuals to contact: | SAUVÉ, Gilbert , STARR, Michel , Lessard, Sylvie | |
| Location: | Latitude: 47.420556, Longitude: -61.904167 | |
| General location information: |
Iles-de-la-Madeleine, Quebec Region HAB Area code(s): CA-23 |
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| Additional location information: | Q-12; 100km vicinity of Iles-de-la-Madeleine | |
| Bloom event dates (yyyy/mm/dd): |
Event Date:2008-07-22 |
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| Quarantine levels dates (yyyy/mm/dd): | First detection: 2008-07-22, End: 2008-09-16 | |
| Additional date-related information: | ||
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Pseudo-nitzschia seriata
(740 cells/L)
2008-05-30 |
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | There may be some other species that may contribute to explain the presence of domoic acid. However, there is no taxonomic observation supporting this possibility at our HAMP stations. The most atypical observation for 2008 is the unusual abundances of Pseudo-nitzschia pungens at our stations (Max: 343 501 cells/L at Q-9 in mid-Oct.) However, this species wasn't observed in two sectors (Q-11 and Q-12) | |
| Event-related bibliography: | ||
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| Nutrient information: |
NITRATE:
Min.16 Max.1.18
PHOSPHATE: Min. 0.39 Max. 0.93 SILICATE: Min.6.66 Max.9.99 |
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| Temperature Range During Event: | Max: 21 °C, Min: 16 °C | |||||||||||||||||||||||||
| Salinity Range During Event: | Max: 30.7, Min: 28.4 | |||||||||||||||||||||||||
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