General Information

Event name: US-11-033
Nature of the harmful event:
High Phyto concentration , Seafood toxins , Other ( )
Event directly affected:
Toxicity detected: Yes (Approximate range: 2.5 - 413 ppm)
Associated syndrome: ASP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (California Department of Public Health Marine Biotoxin Monitoring Program)
Event occurred before in this location: Yes
Individuals to contact: LANGLOIS, Gregg

Location & Date

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Location: Latitude: , Longitude:
General location information: Southern California,
HAB Area code(s): US-19
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2011-01-19, End: 2011-12-22
Quarantine levels dates (yyyy/mm/dd): First detection: 2011-02-23, End: 2011-06-24
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Pseudo-nitzschia spp. ( cells/L)
>90% relative composition
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: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
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
Pseudo-nitzschia Domoic Acid 413 ppm LC
Kit used: Yes Type of kit used: Jellett
Additional information:
Economic losses:
Management decision: Health advisory; commercial harvest restrictions and closures
Additional harmful effect information:
Created at 07:54 on 25 Jun 2012