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Herding carp with sonic prods - Winona Post > Article

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

USGS, Southern Illinois University researchers advance genome mapping for critically-endangered sturgeon

USGS, Southern Illinois University researchers advance genome mapping Release Date: April 7, 2021 This scientific advancement can lead to the development of new genetic markers that will help scientists distinguish between pallid sturgeon and the shovelnose sturgeon, another sturgeon species that looks similar but is more common. In a genetics breakthrough that may help detect and conserve one of North America’s most endangered fish species, researchers from the U.S. Geological Survey’s Columbia Environmental Research Center and Southern Illinois University Carbondale recently produced offspring of endangered pallid sturgeon with DNA from only a single parent. These offspring are not ‘clones’, which are exact copies of an individual, they have only half the DNA from just the female parent.  

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