Lakes and coastal wetlands are transitional areas between dry terrestrial and permanent aquatic ecosystems and are recognised as highly productive. Their importance in socio-economic frontiers has been increasingly felt. Over 200 rivers and lakes in the world are shared by two or more countries. This envisages their international importance. Various efforts are currently underway to develop technologies and systems for successful management of lakes and coastal wetlands both at national and international levels. However, conflicting interests in the use of their resources have led to further worsening of the problems facing lakes and coastal wetlands. Therefore, an earnest attempt has been made in the present book to find ways for restoration, conservation and management of lakes and coastal wetlands.