General Information

Event name: US-00-003
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Seafood toxins , Mass mortalities
Event directly affected:
Natural Fish
Toxicity detected: Yes (Approximate range: 41 g STXeq / 100 g.)
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: OSTASZ, Michael J.

Location & Date

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Location: Latitude: 57.333333, Longitude: -153.366667
General location information: Kodiak Island., Alaska.
HAB Area code(s): US-26
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2000-09-26, End: 2000-09-26
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus:
Co-Ocurring Species/Genus: Ceratium tripos ( cells/L)
Ceratium fusus ( cells/L)
Nitzschia sp. ( cells/L)
Thalassiosira sp. ( cells/L)
Prorocentrum sp. ( cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Water samples showed: Ceratium tripos; Ceratium fusus; Nitzschia sp.; Thallassiosira; and Prorocentrum. Samples of fish (sea lances, Dolly Varden and flounder) showed no abnormalities. Blue mussels showed 41 g/100 g for PSP.
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
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Blue mussels Saxitoxins STX eq 41 Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Posted beaches - advising people not to eat the dead fish. Road blocked to sites for one week.
Additional harmful effect information: