| Event name: | US-23-016 | |
| 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 DSP toxins: 22-170µg/100g tissue) | |
| Associated syndrome: | DSP | |
| 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, South Puget Sound, HAB Area code(s): US-24 |
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| Additional location information: | Blue mussels in Budd Inlet exceeded the action in blue mussels from Budd Inlet in February 2023. DSP levels exceeded the action level in Budd Inlet again in October, peaking at 170ug in blue mussels, thehighestDSPlevelinWashington2023.Cont.AdditionalInfo | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | First detection: 2023-10-01, End: 2023-12-31 | |
| Additional date-related information: | Bloom persisted into 2024 | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Dinophysis 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 | ||||||||||||||||||||||||||
| Additional Environmental information: | ||||||||||||||||||||||||||
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| Kit used: No | Type of kit used: | ||||||||||||||||
| Additional information: | |||||||||||||||||
| Economic losses: | Recreational shellfish harvest seasons were interrupted, causing cultural and economic losses to South Puget Sound Washington communities. | ||||||||||||||||
| Management decision: | WADOH closed recreational and commercial shellfish harvesting at impacted areas to protect public health. | ||||||||||||||||
| Additional harmful effect information: | In December, DSP exceeded action levels in blue mussels in Pickering Passage and Eld Inlet, the first exceedances in these areas recorded in Washington. DSP also exceeded the action level in Eld Inlet, Henderson Inlet, Dana Passage. | ||||||||||||||||
