Study details high cost of invasive species in lakes

A new study says invasive species in lakes cause significant economic damage. The study examined the spiny water flea invasion of a single Wisconsin lake and calculated the damage to the lake’s water quality at $140 million. While the study focused on one lake, it points to the need for more data about the economic impact of invasive species, said study author Jake Walsh, a Ph.D. student at the University of Wisconsin-Madison.