| Event name: | CA-87-006 | |
| Country: | CANADA | |
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Nature of the harmful event: |
Seafood toxins | |
|
Event directly affected: |
Shellfish , Humans | |
| Toxicity detected: | Yes (Approximate range: domoic acid 790 µg/g wet wt (Mytilus edulis)) | |
| Associated syndrome: | ASP | |
| Unexplained toxicity: | ||
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | No | |
| Event occurred before in this location: | No | |
| Individuals to contact: | BATES, Stephen S. , McKENZIE, Cynthia | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Cardigan Bay, Eastern Prince Edward Island, Gulf Region HAB Area code(s): CA-24 |
|
| Additional location information: | Boughton River, Murray River; Bloom extended ~10 km seaward from mouth of Cardigan River on 18 Dec 1987 | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | First detection: 1987-11-27, | |
| Additional date-related information: | Bloom start:before late Nov87, end:mid-Feb88 | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Pseudo-nitzschia multiseries
(15,000,000 cells/L)
(previously known as Nitzschia pungens f. multiseries) |
|
| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | Highest P. multiseries concentration: 15,000,000 cells/L on 11 Dec 1987. | |
| Event-related bibliography: | Bates, S.S., C.J. Bird, A.S.W. de Freitas, R. Foxall, M. Gilgan, L.A. Hanic, G.R. Johnson, A.W. McCulloch, P. Odense, R. Pocklington, M.A. Quilliam, P.G. Sim, J.C. Smith, D.V. Subba Rao, E.C.D. Todd, J.A. Walter, and J.L.C. Wright. 1989. Pennate diatom Nitzschia pungens as the primary source of domoic acid, a toxin in shellfish from eastern Prince Edward Island, Canada. Can. J. Fish. Aquat. Sci. 46: 1203-1215. | |
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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 | ||||||||||||||||||||||||||
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| Kit used: | Type of kit used: | |||||||||||
| Additional information: | HPLC-UVD | |||||||||||
| Economic losses: | ||||||||||||
| Management decision: | Entire Atlantic shellfishery closed 11Dec87, reopened starting 7Jan88 (all open by Apr88) | |||||||||||
| Additional harmful effect information: | >150 people ill; 3 elderly died; 22-25Nov87; This is the first incident of ASP worldwide, and the first diatom known to produce a biotoxin. | |||||||||||
