This books presents a wealth of information concerning the impact of industrial construction on freshwater ecosystems. It is based on the experience gained during hydroelectric power development in New Zealand, and provides an easily understood and convenient summary of these unique events. Topics discussed include aquatic biology, hydroelectric resources in New Zealand, the legal and planning framework associated with their development, biological management and improvement techniques, and environmental impact assessment. Anyone with an interest in the twin issues of conservation and development will find this volume vital reading.