Aquatic invasive species are non-native animals, plants, or pathogens that live in and negatively impact freshwater and marine environments. Without the predators, parasites, and diseases that control their numbers in their native habitats, aquatic invasive species can reproduce and spread quickly.
Invasive species can alter aquatic habitats, reduce biodiversity, and outcompete native species, impacting the local economy and recreational activities. Some aquatic invasive species attach to structures such as drains, pipes, vessels, or fishing gear, reducing their efficiency. Human health can also be impacted if invasive species transmit harmful diseases or toxins. Attempts to eradicate aquatic invasive species and restore habitats can be costly.
Some aquatic invasive species spread when they escape or are released from home aquariums and water gardens. Others can be unintentionally carried between water bodies on boating, fishing, and other water recreation equipment. Visit our page on How to Protect Your Waters from Invasive Species to learn how to avoid spreading aquatic invasive species.