General Information

Event name: US-19-023
Country: UNITED STATES
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Mass mortalities
Event directly affected:
Natural Fish , Aquatic Mammals
Toxicity detected: No
Associated syndrome: Cyanobacterial toxins effects
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes
Individuals to contact: UNKNOWN

Location & Date

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Location: Latitude: , Longitude:
General location information: Mississippi coastal beaches,
HAB Area code(s): US-17
Additional location information: River discharges carried cyanobacteria to 21 Mississippi beaches
Bloom event dates (yyyy/mm/dd): Start: 2019-06-22, End: 2019-10-08
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: No
Causative Species/Genus:
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: Advected
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses: Hardship in surrounding communities due to fish and marine mammal deaths as well as beach closures
Management decision: Closures of all 21 beaches surrounding the waterways.
Additional harmful effect information:
Created at 08:59 on 8 Apr 2020
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES