General Information

Event name: US-94-021
Country: UNITED STATES
Nature of the harmful event:
Mass mortalities
Event directly affected:
Natural Fish
Toxicity detected: No
Associated syndrome: OTHER
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: Allyn., Washington.
HAB Area code(s): US-24
Additional location information: Allyn, Washington at the north end of Case Inlet, Puget Sound.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Late September.

Microalgae

Causative organism known: Yes
Causative Species/Genus: Heterosigma carterae ( cells/L)
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: 0.22 M
PHOSPHATE: 1.26 - 1.4 M
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth:
In situ
Growth Comments Probably in situ growth.
Additional Environmental information: Temperature ranged from 20.5 C at the surface to 15.2 C at the bottom; salinity ranged from 26.3 at the surface to 29.6 at the bottom.

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: None.
Additional harmful effect information: Effects: Wild fish mortalities.
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES