8045

• UCREFRP Catalog Number: 8045
• Author: Pacey, C. A. and P. C. Marsh.
• Title: Resource Use by Native and Non-Native Fishes of the Lower Colorado River
• USFW Year: 1998.
• USFW - Doc Type: Literature Review, Summary, and Assessment of Relative Roles of Biotic and Abiotic Factors in Management of an Imperiled Indigenous Ichthyofauna-Final Report.
• Copyright Material: NO

Given these compelling arguments and the preponderance of available information, we
recommend segregated management of native and non-native fishes in the lower
Colorado River. Native fish management should focus on providing aquatic habitats
free of and protected from non-native fishes, and populated with native populations or
assemblages derived from appropriate, genetically defined stocks. Development of a
comprehensive management plan to implement this recommendation should be
accomplished by resource management entities in cooperation with species experts
and other interested parties. Because the status of the imperiled native fish fauna of
the Colorado River continues to decline, responsible parties are urged to act decisively
and expediently in this new direction. Non-native fish management recommendations
relative to physical habitat and resource uses are beyond the scope of this report.