Aquatic invasive species (AIS) are creating havoc in many midwestern lakes and rivers. Not only are they displacing many native species of animals and plants, but their economic effect is substantial. Whether you are trying to control aquatic invaders in your lake or are trying to keep them out, this book introduces the reader to the major AIS that are plaguing our inland waters. Written in language understandable to a non-scientist, this book provides a readable account of their introduction into American waters, their life history, their effects upon the local ecological community and strategies to control them. For each invader, a summary box provides identifying features, look-alikes and up-to-date maps showing their distribution across North America.