Potomac Environmental Research and Education Center

Invasive Species

What is an Invasive Species?

An invasive species is defined as a non-native species. They can become a problem when they outcompete local organisms for resources.

Snake heads, blue catfish

Water Chestnut

Water Chestnut is an invasive plant that has recently invaded Chesapeake Watersheds.

Mystery Snails

Mystery snails are often sold at local pet shops, however they have also invaded local streams, rivers, and lakes.