General Information

Event name: US-95-015
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 265 g STXeq / 100 g)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Butter clams (Saxidomus gigonteus)
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: Yes (Toxicity and epidemiology documented in area.)
Individuals to contact: OSTASZ, Michael J.

Location & Date

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Location: Latitude: 57.775000, Longitude: 152.391667
General location information: Crooked Island., Alaska.
HAB Area code(s): US-27
Additional location information: NE of Kodiak Island.
Bloom event dates (yyyy/mm/dd): Event Date:1995-04-25
Start: 1995-04-25,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus:
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 Comments Small island north of main Kodiak Island.
Additional Environmental information: N/A

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Raw butter clams (25/2/95) Saxitoxins STX eq 265 Bioassay-Mouse
Raw butter clams (27/2/95) Saxitoxins STX eq 242 Bioassay-Mouse
Cooked clams Saxitoxins STX eq 137 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Press release two weeks before incident.
Additional harmful effect information: