Harmful Algal Information System: Event US-92-024

General Information

Event name:	US-92-024
Country:	UNITED STATES
Nature of the harmful event:	Seafood toxins
Event directly affected:	Humans
Toxicity detected:	Yes (Approximate range: 69 痢 STXeq / 100 g.)
Associated syndrome:	PSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	Yes (Not uncommon to have PSP problem year around in Ketchikan, AK area.)
Individuals to contact:	OSTASZ, Michael J.

Location:	Latitude: , Longitude:
General location information:	Settlers Cove., Alaska. HAB Area code(s): US-25
Additional location information:	in S.E. Alaska north of Ketchikan.
Bloom event dates (yyyy/mm/dd):	Event Date:1992-03-22 Start: 1992-03-22,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Causative organism known:	No
Causative Species/Genus:	Alexandrium sp. ( cells/L) Probably
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	Probably Alexandrium
Event-related bibliography:

Nutrient information:

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Growth Comments

In small cove where local residents harvest shellfish.

Additional Environmental information:

N/A

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Blue mussels	Saxitoxins		< 34	Bioassay-Mouse
Butter clams & cockles	Saxitoxins	STX eq	69	Bioassay-Mouse

Kit used: No

Type of kit used:

Additional information:

Economic losses:

Management decision:

Press release - Warning about PSP and uncertified areas.

Additional harmful effect information:

See attached Epidemiological report