Non-native species, also sometimes called "invasive species" when they are perceived to have negative impacts, are altering ecosystems on a global scale. They are altering communities of native species, habitats, food webs, nutrient cycling, and other ecosystem attributes. Understanding how non-native species affect ecosystems is a key component of efforts to sustain a biodiverse planet.
The impacts of non-native fish on estuarine ecosystems like Chesapeake Bay are poorly understood. Fish communities in tidal freshwater areas often contain several species of large, predatory non-native fish that are likely to have substantial impacts on food webs and habitats. Our lab studies the roles that large, non-native fish, such as Blue Catfish and Common Carp, play in estuarine ecosystems