General Information

Event name: US-89-022
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
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 (Unknown in Lincoln County; last occurrence on north Oregon coast in July 1987)
Individuals to contact: PAETH, John , STATER, Gail

Location & Date

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Location: Latitude: , Longitude:
General location information: Oregon coast., Oregon.
HAB Area code(s): US-22
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1989-11-15, End: 1989-11-28
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Closures from 15-28 November 1989.


Causative organism known: Yes
Causative Species/Genus: Gonyaulax catenella ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Gonyaulax catenella appears to be the causative species, but the Oregon State Health Lab did not screen for this.
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 Uncertain.
Additional Environmental information: Shallow waters of central Oregon coast.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information: Elevated levels of PSP in shellfish collected in October and November 1989.
Economic losses:
Management decision: Closure of portions of the central Oregon coast during time of elevated PSP as tested by the Oregon State Health Division.
Additional harmful effect information: None reported in humans.