Harold M Tyus
Author
Description
Native fishes of the upper Colorado River UCR basin are declining in abundance. Alteration of the natural riverine environment during the last 100 years by human actions including physical alterations and the introduction of nonnative species. Changes in the physical and biological characteristics of riverine habitat have contributed to the endangerment of four native fish species Colorado (pikeminnow, humpback chub, bonytail, and razorback sucker)....
Author
Description
Native fishes of the upper Colorado River UCR basin are declining in abundance. The most likely cause of their decline is anthropogenic alteration of the natural environment. Habitat of the native Colorado River fishes has been changed greatly during the last 100 years by human actions including physical alterations and the introduction of nonnative species. Changes in the physical and biological characteristics of riverine habitat have contributed...