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Hydroacoustics Technology is Helping to Locate and Map Aquatic Plant Beds


Hydroacoustics technology used to navigate boats, track fish and hunt for sunken treasure is now making waves in weed control – shedding new light on the size and shape of plant beds lurking beneath the water.

To map the location of weeds, boats guided by global positioning systems and equipped with sonic depth-finders travel across a lake, bay or other body of water in a carefully calibrated pattern. Data from the soundings is recorded onto a memory card and analyzed by sophisticated software to indicate the presence of plant masses growing beneath the surface – including their depth, underwater height and density.

Growing numbers of public and private organizations concerned about invasive weeds have incorporated hydroacoustic systems. They are using the technology to map changes in both invasive and native plants under a variety of scenarios – from no management to intense management.

 
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Aquatic Weed Harvesting Update - The lake weed harvester began operation for the season on May 4th. This year it has been operating five days a week, with some of those days having extended hours. To date, 382 cubic yards of aquatic plants have been removed from the lake...which is 64 truckloads of lake weeds disposed of just this year! During the same period last year, 94 cubic yards of aquatic plants were removed from the lake.


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