Fisheries in inland waters have long provided an important source of food for mankind. One way to make the use of these resources sustainable and to improve food security and livelihoods is through the development of sustainable fisheries management practices. This book is a compilation of modern knowledge on all aspects concerning the planning and construction of fishpasses as well as their monitoring for effectiveness. Emphasizing the need to take into consideration biological and behavioral characteristics of the species, it describes in detail the engineering options that are available today to make obstacles passable.--Publisher's description.

Color photographs and descriptive data for 50 stream channels for which roughness coefficients have been determined.

This volume reviews recent hydrological and environmental issues resulting from human-induced water pollution practices while providing case studies on the physical, chemical, and eco-biological techniques used to mitigate the impacts of river ecosystem pollution in South Asian countries. The book demonstrates the key methods of measurement, monitoring, mapping, and modeling of river water quality and how it is impacted by pollution and incorporates contemporary geospatial technological applications for the management and sustainability of future water resources. The major topics that the book addresses are the fundamental concepts of river ecosystem health, riverine ecology and habitats, risk assessment of riverine pollution, and technology-based river pollution control strategies. The book will serve as an interdisciplinary guide for researchers, students, and GIS specialists working in various disciplines, including pollution hazards, river ecosystem restoration, water quality, remote sensing, zoology, natural resources management, and environmental geography.

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

Fish species that migrate within the great rivers of South America support important local fisheries but are little known outside their native range. This book represents the first collection of the work of local scientific experts on these remarkable fish. The authors cover the Upper Parani, Paraguay-Parani, Uruguay and Suo Francisco basins in Brazil, as well as the Brazilian and Colombian Amazon. They discuss not only the principal migratory species and their fascinating relationship with the water cycle in the rivers and wetlands, but also the fisheries they support, and their often precarious conservation status."