Pierce Donovan and Michael R. Springborn

from ARE Update Vol. 22, No. 5, May/Jun, 2019

View Article PDF: Maintaining the Long-Term Viability of the Humpback Chub in the Grand Canyon

Abstract

The humpback chub is a native fish of the Colorado River that is vulnerable to extinction. Rainbow trout, initially introduced near the Glen Canyon Dam to serve recreational anglers, now thrive downstream and prey on the humpback chub. The U.S. Geological Survey is currently investigating strategies for controlling the trout population that ensure sufficient humpback chub numbers for future survival. We summarize how a new modeling approach provides both management guidance and reveals the implied existence value of the endangered species.

Keywords

Endangered species, non-native species, conservation, existence value

Citation

Pierce Donovan and Michael R. Springborn. 2019. "Maintaining the Long-Term Viability of the Humpback Chub in the Grand Canyon." ARE Update 22(5): 5-8. University of California Giannini Foundation of Agricultural Economics.
https://giannini.ucop.edu/filer/file/1560199276/19171/