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Blue-Green Algae - May 2008

Cyanobacteria (blue-green algae) are a common seasonal occurrence in Victoria and a natural component of most aquatic systems, including streams, lakes, estuaries and the sea. Many factors trigger blue-green algae blooms including nutrient loads, low inflows, low storage volumes and higher than normal temperatures.

Blue-green algae blooms are monitored regularly by water corporations and local waterway managers. When sampling and testing have confirmed the existence of blue-green algae appropriate action is taken based on the use of the water body and the density and nature of the bloom.

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