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General Information

Event name: US-90-021
Country: UNITED STATES
Nature of the harmful event:
 High Phyto concentration
Event directly affected:
Toxicity detected: No
Associated syndrome:
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: HORNER, Rita

Location & Date

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Location: Latitude: , Longitude:
General location information: Dabob Bay., Washington.
HAB Area code(s): US-24
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: October.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Chaetoceros concavicornis (40,000 - 7 cells/L)
In the top 10 m
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: NITRATE: above 10 µM
Temperature Range During Event: Max: 14 °C, Min: 11 °C
Salinity Range During Event: Max: 30, Min: 29
Bloom location in the water column:
Growth:
In situ
Growth Comments
Additional Environmental information: Series of wind-mixed events. Nutrients were high.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: None, only fish grower in the area did not have fish in the water.