How a Flower and Fish Changed the Niobrara River

The following press release was published by the U.S. Department of the Interior, National Park Service on Dec. 30, 2022. It is reproduced in full below.

People planted yellow iris and stocked northern pike in the river for beauty and sport. The iris altered the river channel, and the pike ate the native fish.

By Lusha Tronstad

Source: U.S. Department of the Interior, National Park Service