General Information

Event name: US-92-020
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 201 g STXeq / 100 g. Viscera.)
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: No
Individuals to contact: BARSS, Bill

Location & Date

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Location: Latitude: 44.633333, Longitude: -125.966667
General location information: Off Florence., Oregon.
HAB Area code(s): US-22
Additional location information: 4438'N, 12558'W to 4427'N, 12510' ", a distance of approximately 36 miles.
Bloom event dates (yyyy/mm/dd): Event Date:1992-02-08
Start: 1992-10-02, End: 1992-10-03
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: About 2-3 October.


Causative organism known: No
Causative Species/Genus: Alexandrium catenella ( cells/L)
not confirmed
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Not confirmed, but happened at same time as high PSP levels in razor clams on Oregon/Washington beaches where the causative species was assumed to be Alexandrium catenella, but this was also not confirmed.
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: 17 °C, Min: 16 °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments Not known.
Additional Environmental information: Surface water currents from the NW.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information: PSP levels: - Dead mackeral (Oct.): viscera 187-201 g/100 g; meat <38-41 g/100g - Live mackeral (Nov.): viscera 97-116 g/70 g; meat: <37 g/100g - Rockfish, live (Nov.): viscera <30 g/80 g; <36 g/100 g.
Economic losses:
Management decision:
Additional harmful effect information: