April 21, 2021 By Waterways Journal
Beginning April 5, the Minnesota Department of Natural Resources conducted a joint intensive carp-harvesting operation with the Wisconsin Department of Natural Resources to remove invasive Asian carp from Pool 8 of the Mississippi River. Pool 8 extends from Lock and Dam 8, located near Genoa, Wis., upstream to Lock and Dam 7, located near Dresbach, Minn.
The effort used the innovative Modified Unified Method (MUM) that combines netting and herding techniques to drive and concentrate invasive carp from a large area of water into a small zone for removal. The two agencies say this is the first time the MUM method has been used in Minnesota or Wisconsin waters, and the first time it has been used anywhere as an early detection and rapid response technique. Other partners include the U.S. Geological Survey (USGS) and the U.S. Fish and Wildlife Service.
LA CROSSE – A fishing expedition for a highly invasive species of carp is underway in the waters of the Mississippi River.
Armed with underwater speakers, electrofishing technology, large boats and nets, employees from the Wisconsin and Minnesota Departments of Natural Resources are trying to find out how many carp have made their way up the river to La Crosse, and how many of them may be spawning new carp into the environment.
The operation so far has netted about 30 carp over the first few days of the operation, enough to establish that the fish have been able to finagle their way this far north, putting other fish and organisms in danger.
Herding carp with sonic prods (4/7/2021)
It’s like a submarine movie, but instead of “The Hunt For Red October,” think “The Hunt For Silver Carp” complete with sonic depth charges and electromagnetic disruptions spurring invasive fish right into naturalists’ trap on the Mississippi.
The Minnesota Department of Natural Resources (DNR), together with their opposite numbers in Wisconsin, as well as several federal agencies, on Monday began an experimental method for controlling invasive carp species. The boat sorties will target pernicious varieties of fish, such as silver carp and grass carp, while attempting to avoid beneficial native species. If it works, the DNR can repeat the method as an early-warning system in other water bodies to determine how far and to what extent the foreign carp species have invaded. To spook the carp into going where scientists want them to, sound waves from underwater speakers will serve as a shot across the
By Travis Cleven
Apr 6, 2021 2:14 AM
This week began the start of an intensive carp removal process in the Mississippi River near Eau Claire using a technique called the Modified Unified Method (MUM). Jordan Weeks with the Wisconsin DNR Mississippi River Team updated us on how the first day went at the river.
In an email, Weeks explained that the first day went well. He goes on to say that they didn’t capture any bighead or silver carp, but they did catch a good amount of native species. Weeks explains that they caught paddlefish, bigmouth buffalo, white bass, northern pike, walleye, black crappie, and a few others.