| Event name: | US-92-021 | |
| Country: | UNITED STATES | |
|
Nature of the harmful event: |
Seafood toxins | |
|
Event directly affected: |
||
| Toxicity detected: | Yes | |
| Associated syndrome: | PSP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes | |
| Event occurred before in this location: | Yes (Previous occurrence in the same area in 1984 - late June/early July. Razor clams and commercial oysters. Toxicity levels in 1992 were highest on record. Levels in 1984 did not exceed 94 µg/100 gms in the edible meat or 1370 µg/100 gms in the viscera of razor clams.) | |
| Individuals to contact: | McCALLUM, Mary | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Pacific coast., Washington. HAB Area code(s): US-23 |
|
| Additional location information: | Pacific Coast of Washington State and coastal estuaries of Willapa Bay and Grays Harbor. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | Late September - early October. | |
| Causative organism known: | No | |
| Causative Species/Genus: |
Alexandrium catenella
( cells/L)
Not confirmed |
|
| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | ||
|
||||||||||||||||||||||||||
| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: |
In situ |
|||||||||||||||||||||||||
| Growth Comments | Probably in situ. Higher levels on outer coast in surf zone - lower levels in estuarine embayments. | |||||||||||||||||||||||||
| Additional Environmental information: | Environmental parameters (temperature, salinity, do) not measured by state health agency. Data may be available from other state agencies. 'El Niño' year. | |||||||||||||||||||||||||
|
|||||||
| Kit used: No | Type of kit used: | ||||||
| Additional information: | Shellfish toxicity: highest levels measured in razor clams in the surf zone. Lower levels in commercial oysters and clams within coastal estuaries. | ||||||
| Economic losses: | Commercial shellfish industry estimates 'one million dollars' lost due to recall and closures. | ||||||
| Management decision: | Postponement of recreational razor clam fishery opening scheduled for October 9, 1992 until November 13, 1992. Closure of commercial oyster beds in Willapa Bay and Grays Harbor. Minor product recall. | ||||||
| Additional harmful effect information: | |||||||
