Topeka Shiner (Notropis topeka) is an endangered fish species that inhabits oxbows, floodplains, and small headwater streams throughout the central United States. Habitat loss and alterations represent the main threats to this species and conservation actions have included restoring oxbows that...

The Northern Snakehead, Channa argus, is an invasive fish species in North America with populations initially established in mid-Atlantic water bodies. Its presence was first recorded in the United States in 1997. The species was listed as a highly injurious species in 2002 under the Lacey Act....

Grass Carp represent a significant threat to many freshwater ecosystems where they compete with native species for food, they can significantly alter habitats through their foraging behavior, and they can reduce catches of commercial fish and damage commercial fishing gear. The Sandusky River, a...