This technical paper presents three case studies of inland fisheries in the context of a multiple-use of land and water resources in the humid tropics of Asia. Two of the three river basins are situated on islands, i.e. the Agno in the Philippines and the Mahaweli in Sri Lanka; one is on mainland Asia, i.e. the Nam Pong Basin in Thailand. Although the river basins have a number of features in common, such as, for example, their size, forest cover and population density, they differ in a number of other environmental aspects and changes induced by the development taking place in their basins. Inland fisheries in all three catchments is represented both by capture and culture components with reservoir fisheries gaining in importance. The studies have shown that while the major constraint to the riverine fisheries has been identified as being the high level of transported sediments originating from eroding lands and mine waste discharge (the Agno Basin), in the reservoirs of Nam Pong and Mahaweli basins it has been the high fishing pressure, in one case non-regulated (Nam Pong), which has caused deterioration of fish stocks. Another constraint in force until recently was of a social (religious) character (Mahaweli Basin). The three studies have shown that in most situations inland fisheries can successfully develop under conditions of the multiple use of the resource.

This revised and updated new edition retains the clear and powerful argument which characterized the original. It gives a valuable analysis of the theory and practice of sustainable development and suggests that at the start of the new millennium, we should think radically about the challenge of sustainability. Fully revised, this latest edition includes further reading, chapter outlines, chapter summaries and new discussion topics, and explores: the roots of sustainable development thinking and its evolution in the last three decades of the twentieth century the dominant ideas within mainstream sustainable development the nature and diversity of alternative ideas about sustainability the problems of environmental degradation and the environmental impacts of development strategies for building sustainability in development from above and below. Offering a synthesis of theoretical ideas on sustainability based on the industrialized economies of the North and the practical, applied ideas in the South which tend to ignore 'First World' theory, this important text gives a clear discussion of theory and extensive practical insights drawn from Africa, Latin America and Asia.

The importance of free longitudinal passage of river fauna is stressed.