General Information

Event name: AU-71-001
Nature of the harmful event:
Water Discoloration , Mass mortalities , Freshwater
Event directly affected:
Other Terrestrial
Toxicity detected: No
Associated syndrome: Cyanobacterial toxins effects
Unexplained toxicity:
Species implicated in toxin transmission (transvector): drinking water
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: Hallegraeff Gustaaf

Location & Date

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Location: Latitude: -35.403333, Longitude: 146.348611
General location information: Lake Uranagong, NSW
HAB Area code(s): AU-23
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1971-12-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Anabaena circinalis ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: May & McBarron 1973. J Australian Institute of Agricultural Science

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
Kit used: No Type of kit used:
Additional information:
Economic losses: Complete mortality of 84 bee hives
Management decision: Reported to government
Additional harmful effect information:
Created at 04:01 on 7 Feb 2017
Updated at 08:07 on 10 Feb 2017