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Clarity for lake researchers' water quality questions
![Sign on a lake with algae reads for swimmers health please don't feed the ducks](/news/mmg/media/images/Figure8_f.jpg)
The discovery is the first report of a virus carrying genes for sulfur oxidation.
Credit: Bill Feeny
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![Reflection of boat on the water to see transparency in Lake Mendota, Wisconsin.](/news/mmg/media/images/Figure2_f.jpg)
Scientists measure the water's transparency in Lake Mendota, Wisc.
Credit: Brett Johnson
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![Underwater view of a Secchi disk, used to measure water clarity, dropping through the water column.](/news/mmg/media/images/figure7_f_21d696db-973c-4d3f-bdd0-eba11d7e052a.jpg)
Underwater view of a Secchi disk, used to measure water clarity, dropping through the water column.
Credit: Adam Hinterthuer
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![people on a boat on a lake](/news/mmg/media/images/figure5_f_c8a56351-7da6-432f-810b-b5e3f6c6d383.jpg)
Scientist teaching area residents the best ways to monitor water quality in lakes.
Credit: Adam Hinterthuer
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![Children looking at a Secchi disk being lowered into the water to measure transparency](/news/mmg/media/images/Figure6_f.jpg)
Children learn how to measure water quality with a Secchi disk.
Credit: Grace Hong
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![Aerial view showing algae blooms in Wisconsin's Lake Mendota](/news/mmg/media/images/Figure4_f.jpg)
Algae blooms in Wisconsin's Lake Mendota are being monitored from the air and from the ground.
Credit: UW-Madison Environmental Remote Sensing Center, image processing by Jon Chipman
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