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New Tactic in Fight Against Zebra Mussels
To protect the waters of the Twin Cities’ largest and most popular lake from invasive species, researchers are using Minnetonka as the testing ground for a new study. Crews this week started testing low doses of a copper-based pesticide on zebra mussel larvae — called “veligers” — to kill them off and slow their spread.

The results could help public agencies and lake advocates control the spread of the invasives on other lakes across Minnesota, shifting the focus from killing off all the pests to keeping their numbers at bay.


 
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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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