General Information

Event name: AU-89-002
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Freshwater
Event directly affected:
Toxicity detected: Yes
Associated syndrome: Cyanobacterial toxins effects
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Mussels
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: -32.524444, Longitude: 115.710833
General location information: Peel-Harvey Estuary, Western Australia
HAB Area code(s): AU-08
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1989-10-01, End: 1990-02-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Nodularia spumigena ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Falconer & Choice, 1992. Environmental Toxicology and Water Quality 7: 119-123.

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
Nodularia spumigena Nodularins Nodularin 90 mg/kg Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses: Drop in real estate values (millions of dollars lost)
Management decision: Coastal engineering to improve flushing (Dawesville Canal, at a cost of 65M AUD)
Additional harmful effect information:
Created at 04:25 on 7 Feb 2017
Updated at 07:50 on 10 Feb 2017