Managing Invasive Species

Here are a few prevalent varieties of invasive species and some management techniques to help contain them.


… has made its way from Northwest Georgia and Alabama to adjacent rivers, taking over by dominating  through active mating and eradicating of native species. Restocking native species, giving them a competitive advantage when it comes to population growth, is the current management technique.


… was imported in the mid-1800s and can be pruned into a dense hedge which is detrimental to the surrounding plants that cannot tolerate shade. Area birds consume the fruit and distribute the seeds, facilitating expansion. It can be controlled, however, with herbicide use.


Only a small fragment of a plant is needed to begin an entire colony of this submerged aquatic plant. It shades native submersed plants, resulting in altered water chemistry and dissolved oxygen levels. It clogs culverts, water control intakes, and pumping stations, and also interferes with recreation. Agencies conduct surveys to identify, map and assess the degree of spread, followed by an application of aquatic herbicides.



Native to the Mississippi River, this fish has been transferred east of the Appalachian Mountains. Growing large quickly, they are voracious predators and have decimated native species.There are few management options, with some states using electrofishing to actively remove adults from the population. It has proven effective in reducing the average size of adults.