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General Information

Event name: US-02-018
Country: UNITED STATES
Nature of the harmful event:
 Water Discoloration , High Phyto concentration , Mass mortalities
Event directly affected:
 Natural Fish , Aquaculture Fish , Shellfish
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Prymnesium parvum
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: BUZAN, Dave

Location & Date

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Location: Latitude: , Longitude:
General location information: Colorado River in west Texas., Texas, ASW.
HAB Area code(s): US-18
Additional location information: Bloom persisted in the river and associated reservoirs for a couple of months in the fall of 2002.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Prymnesium parvum ( 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: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth:
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:
Management decision:
Additional harmful effect information:
Updated at 02:54 on 6 Feb 2020
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES