“…Four oxbows were selected along each of three adjacent tributaries of the North Raccoon River: Buttrick Creek, Cedar Creek, and Hardin Creek (Figure ). Fifty‐five fish species have been collected in the NRRB over the last 6 years (Bakevich et al, ; Bakevich, Pierce, & Quist, ; Zambory et al, ), with 51 species in streams and 38 species in oxbows, including nine Species of Greatest Conservation Need (SGCN; Iowa Department of Natural Resources, ). As one of the remaining strongholds in Iowa and range‐wide for endangered Topeka shiners, the NRRB has been a focus of concern for declining abundance and prevalence (Bakevich et al, ), and a centre for oxbow habitat restoration activity coordinated by the US Fish and Wildlife Service (Kenney, ).…”