General Information

Event name: US-18-002
Country: UNITED STATES
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: 44g)
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Blue mussels
Report the outcome of a monitoring programme: Yes (Marine Biotoxin Program at the Washington State Department of Health, Office of Environmental and Health and Safety.)
Event occurred before in this location: Yes (The first DSP closure in Central Puget Sound was in 2012.)
Individuals to contact: BORCHERT, Jerry , Coyne, Audrey

Location & Date

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Location: Latitude: , Longitude:
General location information: Washington State, Central Puget Sound, Pacific Region
HAB Area code(s): US-24
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2018-05-21
Quarantine levels dates (yyyy/mm/dd): First detection: 2018-05-21, End: 2018-11-26
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis 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: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
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 Okadaic Acid 44g LC-MS
Kit used: No Type of kit used:
Additional information:
Economic losses: Recreational and commercial shellfish harvest seasons were interrupted, causing an economic loss to the Central Puget Sound Washington communities.
Management decision: WADOH closed shellfish harvesting at impacted areas to protect public health.
Additional harmful effect information:
Created at 08:24 on 25 Mar 2019
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES