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Study Highlights Cost of Invasive Species
A new study by the University of Wisconsin-Madison highlights the hefty cost of controlling aquatic invasive species in the state’s lakes.

The study found that the estimated cost of controlling a single invasive species, the spiny waterflea, in just one lake could range from $86.5 million to $163 million over 20 years. Researchers believe study’s results show that a broader measure of the costs of controlling aquatic invasive species should be taken into account.

There are 37 types of invasive species in Wisconsin inland lakes, according to the department. Some of the state’s lakes have been untouched, while others are plagued with foreign species that could threaten their ecosystem.

The state Department of Natural Resources spends about $4 million annually on various efforts to control the spread of invasive species in inland lakes.


 
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Most Poisonous Lake World Record - Since 2008, Anderson Lake has been plagued with soaring levels of anatoxin-a, a potent nerve toxin produced by blue-green algae. The safety threshold for the toxin, which can kill in four minutes after ingestion, is one microgram per liter; Anderson Lake readings were at 172,640 micrograms per liter.


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