Humpback Chub Translocations in Three Grand Canyon Tributaries

Fishery biologists and park managers from the Native Fish Ecology and Conservation Program in Grand Canyon National Park are taking a holistic approach to expand the abundance and distribution of Humpback Chub within the park. They removed non-native Brown and Rainbow Trout via fishing and electrofishing, and then translocated Humpback Chub to three Colorado River tributaries. These tributaries were decided by baseline surveys that evaluated existing fish populations, water quality, stream temperature and flow, fish barriers to control non-native fish, and proximity to the wild population. In total, the team managed to suppress non-native trout by 90% and increase native fish population by over 400%.