General Information

Event name: US-03-024
Country: UNITED STATES
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 365 g STXeq / 100 g.)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Blue Mussels, Geoduck Clams, Manila Clams, Pacific Oysters
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 (Most of the inlets of Central Puget Sound have had previous PSP closures.)
Individuals to contact: COX, Frank

Location & Date

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Location: Latitude: , Longitude:
General location information: Central Puget Sound., Washington.
HAB Area code(s): US-24
Additional location information: King County- Quartermaster Harbor closed on July 16, 2003.Kitsap County- Dyes Inlet closed on July 23, 2003. North Kitsap County, from Pt. No. Pt., south to Jefferson Head closed on August 27, 2003. Dyes Inlet reclosed on October 21, 2003.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Initial date: See Additional Location Information Final date: Dyes Inlet reopens on August 28, 2003. Quartermaster Harbor reopens on Sept. 23, 2003. Pt. No Pt., south to Jefferson head reopens on Sept. 25, 2003. Dyes Inlet reopens on Nov. 14, 2003.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella ( 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: Yes 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
Blue mussels Saxitoxins STX eq 365 Bioassay-Mouse
Geoduck, Manila Clams, Pacific Oysters Saxitoxins STX eq Bioassay-Mouse
Kit used: No Type of kit used:
Additional information: Blue mussels: most toxic species
Economic losses: Recreational and commercial shellfish harvest seasons were interrupted, causing an economic loss to the Central Puget Sound Washington communities.
Management decision: DOH closed shellfish harvesting at impacted areas to protect public health.
Additional harmful effect information:
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES