This Ontario aquatic invasive species guide helps residents identify and report on non-native plants and animals that could harm Ontario's ecosystem. Examples of invasive aquatic plants include Eurasian Water-Milfoil, European Frog-bit, and Water Hyacinth. Invasive fish include Zebra Mussels, Sea Lamprey, and round goby. Reporting sightings of these species can help prevent their spread and protect native biodiversity.