Study reveals an invasive fish has become the top predator of the Susquehanna in just over two decades. Here's why.

Flathead catfish, opportunistic predators native to the Mississippi River basin, have the potential to decimate native and recreational fisheries, disrupting ecosystems in rivers where they become ...

Lawmakers have introduced legislation targeting an invasive species in the Susquehanna River’s major outlet. The Southern Maryland Chronicle reports that members of the US Congress from Maryland and ...

Flathead catfish have become a threat to resident species in the Susquehanna River in Pennsylvania. The results of a new study suggest they're outcompeting other predators and reshaping an essential ...

Flatheads grow fast in this river system, attain large body sizes and can eat a variety of prey. Because adult flatheads have few natural predators, they can exert strong control over the ecosystem.