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This concise fact sheet outlines the U.S. Fish and Wildlife Service’s strategy for combating aquatic invasive species invasive species
An invasive species is any plant or animal that has spread or been introduced into a new area where they are, or could, cause harm to the environment, economy, or human, animal, or plant health. Their unwelcome presence can destroy ecosystems and cost millions of dollars.

Learn more about invasive species (AIS) through early detection, rapid response, and science-based prevention. The document showcases a $4.9 million investment made in 2023�2024 and quantifies the immense economic burden of AIS—estimated at over $15 billion since 1960. Highlighting threats like zebra mussels and invasive plants, the fact sheet emphasizes the importance of proactive management to protect U.S. waters, native wildlife, and recreation economies.