Fish species of Aravaipa Canyon

[2] This includes protecting their habitat from disturbance by humans and encroachment by non-native species that could potentially out-compete the native ones.

This variation ensures that a relatively large number of fish species are able to find suitable habitat for themselves within the confines of the canyon.

One such endeavor is the construction of fish barriers, which are low concrete walls spanning the water, creating an artificial series of waterfalls that the invasives cannot pass.

Twice a year, partners including The Nature Conservancy, the Bureau of Land Management, United States Fish and Wildlife Service, and Dr Peter Reinthal, professor at the University of Arizona, sample nine sites along the length of Aravaipa Canyon.

This involves placing a set of electrodes in the water, which send out a low-level electric pulse, temporarily stunning the fish in the immediate area.