General Information

Event name: US-18-013
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Natural Fish , Shellfish
Toxicity detected: No
Associated syndrome: NSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Alabama Phytoplankton Monitoring Program)
Event occurred before in this location: Yes (In 1996, 2000, 2007, 2015 and 2018)
Individuals to contact: WEBB, Bryon

Location & Date

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Location: Latitude: , Longitude:
General location information: Coastal Alabama,
HAB Area code(s): US-17
Additional location information: Alabama coast from Florida Point to Fort Morgan
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2018-11-05, End: 2018-12-03
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Karenia brevis (250,000 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: 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: 20 °C, Min: 12.5 °C
Salinity Range During Event: Max: 31.7, Min: 25.2
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
Oyster Brevetoxins 1.8 ppm ELISA
Kit used: Yes Type of kit used: Marbionic
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 09:56 on 28 Mar 2019