Which of the following is a non-native aquatic species found in Nebraska wetlands?

Common carp is classified as a non-native aquatic species found in Nebraska wetlands. Originally introduced to the U.S. in the 19th century for ornamental and aquacultural purposes, common carp have since established populations across many states, including Nebraska. Their ecological impact can be significant; they can disrupt local ecosystems by uprooting vegetation, stirring up sediments, and competing with native fish for food and habitat.

Other species listed, such as bluegill, catfish, and rainbow trout, are either native to the region or have been introduced as part of recreational fishing efforts and are considered more established within Nebraska's aquatic habitats. The distinction between native and non-native species is important for understanding ecosystem dynamics and management practices in conservation efforts.