2016 Rachel Carson Award for Exemplary Scientific Accomplishment

Rick Deshler, Michael Pillow, Dennis Stone, Randy Van Haverbeke, Jim Walters, and Kirk Young

January 2017
Grand Canyon Humpback Chub Team coThe Little Colorado River within the Grand Canyon is home to the largest and most viable of six populations of humpback chub (Gila cypha), an endangered fish native to the Colorado River basin. However, since the early 2000s, the Little Colorado River population has declined to less than 2,000 adults, primarily due to habitat loss from the construction of large dams and reservoirs throughout the basin and predation by nonnative fish.