Life in estuaries — the ecosystem formed when the fresh water of a river meets the salt water of the sea — is governed by the tides. Discover the unique features of estuaries and learn to identify some ways in which people use them to meet human needs, including those activities that can endanger the natural environment.
Part of the Aquatic Ecosystems series produced by Partridge TV & Video, Ltd.
Grade Levels: 7 to Adult