| Event name: | US-22-011 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
High Phyto concentration , Seafood toxins | |
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Event directly affected: |
Shellfish , Humans | |
| Toxicity detected: | Yes (Approximate range: 46-81 µg/100 g) | |
| Associated syndrome: | PSP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | California Mussels and Pacific Oysters | |
| Report the outcome of a monitoring programme: | Yes (California Department of Public Health - Marine Biotoxin Monitoring Program) | |
| Event occurred before in this location: | Yes | |
| Individuals to contact: | ZUBKOUSKY-WHITE, Vanessa | |
| Location: | Latitude: , Longitude: | |
| General location information: |
California - Monterey and San Luis Obispo Counties, HAB Area code(s): US-20 |
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| Additional location information: | ||
| Bloom event dates (yyyy/mm/dd): |
Event Date:2022-10-23 |
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| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | PSP detected (< 80 ug/100 g) January- 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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| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: | ||||||||||||||||||||||||||
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| Kit used: Yes | Type of kit used: NeoGen | ||||||||||||||||
| Additional information: | Shellfish homogenates are received on ice, extracted, and a Neogen rapid test determines whether the mussel sample is positive or negative. Mussel samples that are positive on NeoGen are then tested using a mouse bioassay to determine concentration of PSP toxins. All other species are only tested with mouse bioassay. | ||||||||||||||||
| Economic losses: | Commercial areas in Morro Bay in San Luis Obispo County went under biotoxin restrictions and had more frequent testing. Recreational advisories were placed on San Luis Obispo and Monterey counties when the mussel quarantine was not in effect so potential | ||||||||||||||||
| Management decision: | Recreational advisory was in place, from the time of first positive result above 80 µg/100g until all sites had two consecutive samples below 80 µg/100g collected 14 days apart. | ||||||||||||||||
| Additional harmful effect information: | |||||||||||||||||
