General Information

Event name: US-01-001
Country: UNITED STATES
Nature of the harmful event:
Seafood toxins
Event directly affected:
Humans
Toxicity detected: No
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Butterclams.
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: OSTASZ, Michael J.

Location & Date

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Location: Latitude: , Longitude:
General location information: Larsen Bay., Alaska.
HAB Area code(s): US-26
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2001-01-09
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: 1/8/01 clams were dug.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium 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: 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
Saxidomus Saxitoxins STX eq 239, 269, 2 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Press release warning about eating clams from this beach by the Alaska Department of Environmental Conservation.
Additional harmful effect information: Tingling around mouth occurred within a few minutes of consumption. Nausea, vomiting, and dizziness developed about 20 minutes after ingestion of clam. Emesis was obtained but too low a volume for a psp test. The test result for amnesic shellfish pois
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES