Aquatic Invasive Species (AIS) are non-native plants, animals, or pathogens that cause harm to the environment, the economy, fisheries, native species, and human or animal health. Preventing their spread is important because once introduced, these species disrupt ecosystems, reduce biodiversity, and cost communities huge amounts of time, money, resources, and lost revenue.
Aquatic invasive species can be introduced unintentionally through transport of ballast water in cargo ships and through water-related activities like boating and fishing. They can also be transported to new locations by activities such as releasing unwanted aquarium pets, dumping live bait into a waterway or lake, and illicit stocking. No matter how they arrive, invasive species can wreak havoc and impact entire ecosystems.
Introduction to Aquatic Invasive Species
CD3: Clean, Drain, Dry, Dispose
AIS Documentary
Learn More about Specific AIS
Practice Reporting AIS
Reporting AIS is one of the best ways to prevent further spread. Download the Pennsylvania AIS Field Guide App by searching “PA AIS” in your app store, and follow the steps below to take suitable photos:
- Take clear, close-up digital photographs from different angles.
- Include a reference object to establish scale.
- Take photos of the immediate environment where the sighting occurred.
- Provide good background contrast.
- Take photos of any distinguishing characteristics.
- Note specific location info when reporting.