| Event name: | US-24-008 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
Water Discoloration , High Phyto concentration | |
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Event directly affected: |
Shellfish | |
| Toxicity detected: | Yes (Approximate range: Maximum PSP toxins: 1168µg/100g tissue) | |
| Associated syndrome: | PSP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes (Marine Biotoxin Program at the Washington State Department of Health, Office of Environmental and Health and Safety) | |
| Event occurred before in this location: | Yes | |
| Individuals to contact: | BORCHERT, Jerry , BARRY, Tracie | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Washington State, Coastal beaches and bays, HAB Area code(s): US-23 |
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| Additional location information: | Willapa Bay had toxin levels peak in May at 1060 ug/100g. Commercial and recreational shellfishing closures resulted during this time. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | First detection: 2024-05-22, End: 2024-08-04 | |
| Additional date-related information: | ||
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Alexandrium spp.
(35,000 cells/L)
|
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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: |
In situ |
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| Growth Comments | ||||||||||||||||||||||||||
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| Kit used: No | Type of kit used: | ||||||||||||||||||||||||||
| Additional information: | |||||||||||||||||||||||||||
| Economic losses: | Tribal, recreational, and commercial razor clam harvests were interrupted by PSP closures, causing cultural and economic losses in excess of $1 million to Washington's coastal communities. Loss includes recall and lost opportunity. | ||||||||||||||||||||||||||
| Management decision: | WADOH closed shellfish harvesting at impacted areas and recalled shellfish to protect public health. | ||||||||||||||||||||||||||
| Additional harmful effect information: | |||||||||||||||||||||||||||
