| Event name: | CL-16-004 | |
| Country: | CHILE | |
|
Nature of the harmful event: |
Water Discoloration , High Phyto concentration , Seafood toxins | |
|
Event directly affected: |
Humans | |
| Toxicity detected: | Yes (Approximate range: 5x10^3 µg STX eq/kg) | |
| Associated syndrome: | PSP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | No | |
| Event occurred before in this location: | Yes (since 1908) | |
| Individuals to contact: | SCHWEIBOLD Laura | |
| Location: | Latitude: -41.775833, Longitude: -73.673889 | |
| General location information: |
Chacao channel, Aysen and Los Lagos HAB Area code(s): CL-12 |
|
| Additional location information: | Sanitary bans from Valdivia to Corcovado Gulf, including all Chiloe Island coasts. | |
| Bloom event dates (yyyy/mm/dd): |
Event Date:2016-04-24 Start: 2016-04-15, End: 2016-05-01 |
|
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | closures for very long periods (years) | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Alexandrium catenella
(2.5x10^5 cells/L)
|
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | Hernández, C., Díaz, P.A., Molinet, C. & Seguel, M. (2016): Exceptional climate anomalies and northwards expansion of Paralytic Shellfish Poisoning outbreaks in Southern Chile. − Harmful Algae News 54: 1–2. | |
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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 | ||||||||||||||||||||||||||
| Additional Environmental information: | This exceptional A. catenella bloom was associated with extreme hydroclimatic anomalies | |||||||||||||||||||||||||
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| Kit used: | Type of kit used: | |||||||||||
| Additional information: | assay made on Pacific clams (Gari solida) | |||||||||||
| Economic losses: | estimated to US$2M this year | |||||||||||
| Management decision: | shellfish harvesting closures over extensive geographic areas (up to 500 km) and for very long periods (1–3 years). | |||||||||||
| Additional harmful effect information: | 1700 people were left unemployed because of HAB events, due to the inactivity of the processing plants and the ban on the harvesting of mussels. 12 people intoxicated. | |||||||||||
