The biota must be managed first, not their habitat. There is a potential for adverse impacts from burros along the lower Colorado River. Evaluate recreational use of the river and its impacts on wildlife. Consider introduced species of wildlife and their effects on native species. Reclamation's dams and water diversions along the Colorado have caused the decline and endangerment of many wildlife species.
Native fishes can complete their life cycles in other-than unspoiled, virgin habitat.
Introduced sport fish species are an integral component of aquatic resources in the lower Colorado River. International Impacts Consideration should be given to the entire lower Colorado River basin ecosystem, including the delta because actions taken on the lower Colorado River could have significant implications for fragile species and habitat in the Colorado River Delta and Sea of Cortez. Consider the delta region of the river in Mexico which has Yuma clapper rails, desert pup fish, and Southwestern willow flycatchers and other threatened and endangered species in the Cienega de Santa Clara. The delta likely acts as population reservoirs for many of the endangered species in the United States. The delta also supports largest remaining stands of critical habitat types including willow thickets, cottonwood-willow gallery forests, and emergent wetlands.