Fish in the Wrong Place: Aquatic Colonialism
Oliver Cussen, 23 October 2025
On the Des Plaines River, just south of Chicago, the United States Army Corps of Engineers is at war with Asian carp. The fish were first imported to America in the 1970s to eat up the weeds and algae in catfish ponds and sewage treatment lagoons around Little Rock. But they soon escaped into the Arkansas River, and from there into the Mississippi River basin, disrupting food chains and...