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Water Management Associations
Apple River Harvester Removes 1200 tons of Aquatic Plants

The strategy of the Apple River Protection and Rehabilitation District was to remove as much of the curly leaf pondweed as possible early, then systematically move up and down the Flowage keeping the main navigation channel clear plus providing access channels to the resident along the shoreline whenever practical.

Operating under the strict rules of a permit authorized by the Department of Natural Resources the harvester begin cutting on May 28th and operations ceased on August 29th. During this time the aquatic plant harvester collected 566 loads of weeds, measuring approximately 155,650 cubic feet in volume, and weighing about 2,535,680 pounds.

Due to its high nutrient content, the harvested weeds make excellent fertilizer and are put to good use by local growers and organic farmers in the area.

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A Sound Way to Keep Out Invasive Carp? - University of Minnesota researcher Peter Sorensen and his team, including doctoral student Dan Zielinski, have discovered that the carp are sensitive to — and annoyed and deterred by — sounds not heard by most other fish. This information could be the key to stop the spread of bighead and silver carp in the Mississippi River.

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