General Information

Event name: US-93-015
Country: UNITED STATES
Nature of the harmful event:
Seafood toxins
Event directly affected:
Humans
Toxicity detected: Yes (Approximate range: 400 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 (SEAFOOD PROGRAM, STATE OF ALASKA, DEPARTMENT OF ENVIRONMENTAL CONSERVATION.)
Event occurred before in this location: Yes (Unknown.)
Individuals to contact: OSTASZ, Michael J.

Location & Date

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Location: Latitude: 55.545000, Longitude: -130.868056
General location information: Point Louise., Alaska.
HAB Area code(s): US-25
Additional location information: Point Louise: point of land on the mainland, S. Point of entrance to Rudyerd Bay, Behm Canal.
Bloom event dates (yyyy/mm/dd): Event Date:1993-06-20
Start: 1993-06-20,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: No
Causative Species/Genus: Alexandrium spp. ( cells/L)
Suspect
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Causative species not confirmed but suspected to be Alexandrium.
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 N/A.
Additional Environmental information: Inside waters of southeast Alaska.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information: Laboratory tests on mussels revealed over 400 g/100 g.
Economic losses:
Management decision: Press release warning
Additional harmful effect information: Ate mussel on 19 June 1993 from area with no ill effect. Harvested product on 20 June 1993 and became ill within 5 minutes.
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES