General Information

Event name: US-17-033
Country: UNITED STATES
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: Maximum levels of PSP toxin: 81-129g. Maximum levels of DSP toxin: 54-88g)
Associated syndrome: DSP , PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): PSP toxin: Blue mussels, butter clams, geoduck clams. DSP toxin: Blue mussels and rock scallops.
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 (PSP closures have occurred throughout South Puget Sound previously. The first DSP closure in South Puget Sound was in 2013.)
Individuals to contact: BORCHERT, Jerry , Coyne, Audrey

Location & Date

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Location: Latitude: , Longitude:
General location information: Washington State, South Puget Sound, Pacific Northwest
HAB Area code(s): US-24
Additional location information: PSP closures occurred between 9/6/17-10/18/17. DSP closures occurred between 8/28/17-present.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella ( cells/L)
Dinophysis sp. ( 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 250 ug LC-MS
Pacific Oysters Okadaic Acid 27 ug LC-MS
Cockles Okadaic Acid 19 ug LC-MS
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 08:47 on 24 Apr 2018
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES