Inland fishes of the greater Southwest

"Many native fish species are unique to the Southwest. They possess interesting and unusal adaptations to the challenges of the region ... However, in spite of being well adapted, many of the fish described here are threatened or endangered, often due to the acts of humans who have altered the natural habitat. For that reason, [book title] presents a vast amount of information about the ecological relationships between the fishes it describes and their environments, paying particular attention to the ways in which human interactions have modified aquatic ecosystems--and to how humans might work to ensure the survival of rapidly disappearing native species."--Book jacket.