For more than two decades, Duane Chapman, a fish biologist with the United States Geological Survey (USGS), has been chasing the spread of invasive carp, a family of fish originally from Europe and Asia, which individually are known as bighead carp, black carp, grass carp and silver carp. After their introduction to the U.S. in the 1970s by way of aquatic farms, they escaped into the Mississippi River and began to reproduce, causing widespread economic and environmental damage as they out-competed native fish populations for food and other resources.
Click here for original story, Predicting the spread of invasive carp using river water flows
Source: Phys.org