General Information

Event name: US-94-028
Country: UNITED STATES
Nature of the harmful event:
Seafood toxins
Event directly affected:
Humans
Toxicity detected: Yes (Approximate range: 19,418 g STXeq / 100 g.)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Mussels.
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: No
Individuals to contact: OSTASZ, Michael J.

Location & Date

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Location: Latitude: 57.204167, Longitude: -153.300000
General location information: Old Harbor (Kodiak Island)., Alaska.
HAB Area code(s): US-26
Additional location information: On west shore of Sitkalidak Strait, 56 miles SW of Kodiak.
Bloom event dates (yyyy/mm/dd): Event Date:1994-05-29
Start: 1994-05-29,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

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: No data. Small beach area.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mussels (31/5/94) Saxitoxins STX eq 19,418 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Press release and State of Alaska via Emergency Powers closed beach to harvesting.
Additional harmful effect information:
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES