| Event name: | US-04-022 | |
| 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: 39 - 118 µgms/100 gms) | |
| Associated syndrome: | PSP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | None occurred | |
| Report the outcome of a monitoring programme: | Yes (Oregon Dept of Agriculture, Shellfish Sanitation Program) | |
| Event occurred before in this location: | Yes (PSP blooms occur on the southern coast of Oregon almost every year) | |
| Individuals to contact: | CANNON, Deborah F. | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Oregon, southern most beaches, Pacific NW, USA HAB Area code(s): US-22 |
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| Additional location information: | This event was evident along the entire coast line but highest on south coast line, on the Curry County beaches where rmussel habitat is abundant. Other shellfish sampled from coastal bays did not reach toxic levels during this event. | |
| Bloom event dates (yyyy/mm/dd): | Start: 2004-08-25, End: 2004-09-13 | |
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | During 2004, the north, central and especially the southern coast (Coos Bay to California border) of Oregon saw some PSP toxin elevations. Only mussels were affected except for detectable levels (39) in oysters from a small bay on the north coast, Netarts Bay. PSP became elevated to 39 – 64 µgms/ 100 gms in mussels from the north and central coast the week of June 21 and jumped to 118 on the south coast by the week of Aug 23, 2004. A recreational shellfish harvesting closure went into effect on 8/27/04 and the area from Coos Bay to the CA border was included in a closure that lasted until Oct 1 when levels dropped to <39 µgms/ 100 gms again. Razor clams and butter clams in the same areas were not affected. No commercial areas were closed. | |
| 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 | |
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| Economic losses: | PSP Closure had no affect unknown on commercial processors and likely little affect on recreation/tourism in the area. | |||||||||||
| Management decision: | Recreational closure required to assure public safety. Commercial bait harvesting is also closed to prevent any contaminated product from entering commerce. | |||||||||||
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