ResearchTopic: Invasive Species

Rusty Crayfish AIS Fact Sheet

Species at a Glance The Rusty Crayfish is a large, aggressive crayfish that can outcompete native crayfish species and alter ecosystems with its appetite for aquatic plants and organisms. This species tends to grow faster, become larger, and exhibit more aggression than native crayfish species. While it gets its name from the rusty colored spots […]

Water Chestnut AIS Fact Sheet

Aquatic Invasive Species Slide Decks

Aquatic Invaders Attack Packs

The Aquatic Invaders Attack Pack is a toolkit for educators, available for loan. Request the attack pack today! The pack includes a classroom guide, a Sea Lamprey model, giant posters of the Silver and Bighead Carp, and acrylic block specimens of Zebra Mussels, Rusty Crayfish, Round Goby, and the Eurasian Ruffe. Also included is a […]

Boater AIS Prevention Tip Sheet

Starry Stonewort AIS Fact Sheet

Sea Lamprey AIS Fact Sheet

Rainbow Smelt AIS Fact Sheet

Curly-leaf Pondweed AIS Fact Sheet

Aquatic food web changes to invasive Flathead Catfish along a natural invasion gradient

Biological invasions have the potential to significantly alter the structure and function of aquatic communities. Invasive predatory fish species are known to restructure food webs – since predatory fishes have a dominant influence on community structure in freshwater systems. The Flathead Catfish Pylodictis olivaris is a large piscivorous catfish that is invasive in many parts […]