General Information

Event name: US-01-017
Country: UNITED STATES
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 24 ppm DA.)
Associated syndrome: ASP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Razor clams.
Report the outcome of a monitoring programme: Yes (WA Dept. of Health, office of Food Safety & Shellfish Programs, Marine Biotoxin Monitoring Program.)
Event occurred before in this location: Yes (WA coast is impacted by ASP on a yearly cycle.)
Individuals to contact: COX, Frank

Location & Date

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Location: Latitude: 45.333333, Longitude: -124.066667
General location information: Long Beach Peninsula, Twin Harbor Beach, Will, Washington, Coastal Beaches.
HAB Area code(s): US-23
Additional location information: Latitude: 4520' - 4650' N. Longitude: 124 04' W.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Date of quarantine levels: 11/03/01 - 13/07/01.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia spp. ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: No Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Razor clams Domoic Acid DA eq 24 ppm LC
Kit used: No Type of kit used:
Additional information:
Economic losses: Recreational and commercial razor clam seasons were interrupted, causing an economic loss to the Washington coastal communities.
Management decision: DOH closed razor clam harvesting at impacted beaches to protect public health.
Additional harmful effect information:
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES