Intensive in-lake and watershed management caused Kohlman Lake, the northernmost lake in the Phalen Chain of Lakes in Minnesota, to go from a relatively turbid to a clear water state. Aquatic plants responded to the clean waters by growing up to the surface. The change in lake state and a comprehensive water quality monitoring dataset
An aquatic weed harvester was used to remove macroalgae from Georgica Pond in New York from 2016 through 2018 and on a limited basis last year, an effort to inhibit harmful algal blooms, including toxic cyanobacteria, or blue-green algae. Approval has just been granted for the the mechanical harvester to be operated from June to
Phragmites, the 12 feet tall perennial grass that aggressively colonizes and forms dense stands in freshwater wetlands can be eradicated using herbicides, but it takes years of repetition. The glyphosate components in the herbicide stay in the ecosystem which can lead to loss of biodiversity, making them more vulnerable to pollution and climate change. An
In December, 2010 Wisconsin became the first state in the country to adopt phosphorus water quality standards for lakes, reservoirs, rivers, and streams. The Environmental Protection Agency has approved Wisconsin’s revised rule as a revision to Wisconsin’s federally-approved National Pollutant Discharge Elimination System program under the Clean Water Act. Under the new rules DNR determines
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