The Namekagon River, a part of the National Scenic Riverway in Wisconsin and Minnesota, where Beard spend much of his childhood fishing.(Public domain.)
USGS, ERDC Scientists installing experimental underwater acoustic deterrent system to stop spread of invasive Asian carp
The invasive fish are harmful because they grow quickly and aggressively compete with native fish for food and habitat Author: Luke Cleary Updated: 11:18 AM CST February 4, 2021
The United States Geological Survey and its partners like the Army Corps of Engineers are installing an underwater acoustic deterrent system at Lock and Dam 19, in Keokuk, Iowa, to study how sound may be able to stop the spread of invasive Asian carp species.
The invasive fish are harmful because they grow quickly and aggressively compete with native fish for food and habitat. Conservationists have long feared Asian carp will reach the Great Lakes.