Harmful Algal Information System: Event US-00-002

General Information

Event name:	US-00-002
Country:	UNITED STATES
Nature of the harmful event:	Seafood toxins
Event directly affected:	Humans
Toxicity detected:	Yes (Approximate range: 32-45 痢 STXeq / 100 g.)
Associated syndrome:	PSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):	Prototheca stominea and Cancer magister.
Report the outcome of a monitoring programme:	No
Event occurred before in this location:	Yes (General area has shown elevated levels of PSP in the past.)
Individuals to contact:	OSTASZ, Michael J.

Location & Date

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Location:	Latitude: 57.133333, Longitude: -135.375000
General location information:	Sitka, Starrigavan Bay., Alaska. HAB Area code(s): US-25
Additional location information:
Bloom event dates (yyyy/mm/dd):	Event Date:2000-06-04 Start: 2000-06-04, End: 2000-06-04
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:

Toxin Assay Information

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Cancer magister	Saxitoxins	STX eq	32 - 33	Bioassay-Mouse
Prototheca stominea	Saxitoxins	STX eq	45	Bioassay-Mouse

Kit used: No

Type of kit used:

Additional information:

Economic losses:

Management decision:

Additional harmful effect information:

1 person came down with perioral numbness and tingling, nausea, and tongue felt 𤉋umb�. Patient was given charcoal and stomach lavage and admitted to hospital for care and observation. Patient had eaten 8-10 uncooked littleneck (Prototheca staminea) clams