| Event name: | US-23-022 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
Seafood toxins | |
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Event directly affected: |
Shellfish | |
| Toxicity detected: | Yes (Approximate range: Maximum PSP toxins: 116-2143 µg/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, Strait of Juan de Fuca and Bays, HAB Area code(s): US-24 |
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| Additional location information: | PSP was detected in Discovery Bay blue mussels briefly in mid-March triggering a recreational shellfish closure. PSP closures began again in mid-June in the open waters of the Strait and bays, with PSP peaking in mid-September in Discovery and Sequim Bays | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | First detection: 2023-06-15, End: 2023-12-01 | |
| Additional date-related information: | Another closure in mid-March | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Alexandrium spp.
( 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: | Whole 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: | Recreational, commercial and Tribal ceremonial and subsistence shellfish harvests were interrupted, causing cultural and economic loss to Strait of Juan de Fuca Washington communities. | |||||||||||||||||||||||||||||||||||||||||
| Management decision: | WADOH closed shellfish harvesting at impacted areas to protect public health. | |||||||||||||||||||||||||||||||||||||||||
| Additional harmful effect information: | ||||||||||||||||||||||||||||||||||||||||||