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Lake Burrumbeet algae outbreak
Excerpt from The Courier.

A BLUE-GREEN algae outbreak has forced Ballarat City Council to close Lake Burrumbeet until further notice. Warning signs will soon be installed, advising that the popular lake is closed to all activity, including swimming, water sports, wading, fishing, extracting water for stock or domestic use. No stock or pets should be allowed to make contact with or drink the water.

The lake, which had been empty for many years due to the prolonged drought, had only recently reopened for boating. Council will conduct daily visual inspections of the lake to observe any visible blooms, scum formation, evidence of dead fish and to check that warning signs remain in place.

Blue-green algae can cause taste and odor problems in water supplies. Some species of blue-green algae produce toxins that are harmful to humans and animals when they are consumed, inhaled or contact the skin.  Blue-green algae is often caused when large amounts of nutrients (nitrogen and phosphorous) flow into a waterway, higher than normal temperatures and high pH levels also contribute to the problem.


 
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Grass Carp Discoveries Concern Wisconsin Fisheries Officials - The grass carp is an herbivorous freshwater fish which is cultivated in China for food, but deliberately introduced in the United States in 1963 for aquatic weed control. While it is considered an invasive species in the US, it is still stocked in many states as an effective biocontrol for invasive plant species.


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