Includes bibliographical references (pages 293-296).
Summary:
"A scientific guide to rivers, streams, and the animals that reside within them, written accessibly for a general audience. Topics range from what causes river flows to rise and fall to the ecology of riverine fishes"-- Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.