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.   

Chapter1. River Health and Ecology: Perspective View and Approach.- Chapter2. Arthropods: an important bioindicator to decipher the health of the water of South Asian Rivers.- Chapter3. Anthropogenic stress on river health: with special reference to Kangsabati river, West Bengal, India.- Chapter4. Role of modern biotechnology in the era of river water pollution.- Chapter5. Assessment of chitinolytic bacteria isolated from zooplankton of freshwater ecosystem.- Chapter6. Microplastics in freshwater riverine systems: brief profile, trophic level transfer and probable remediation.- Chapter7. Assessment of River Health through Water and Biological Characteristics.- Chapter8. Estimating Water Quality of the Sundarban Coastal Zone (India) using Landsat Series Satellite Data and Ground Observations.- Chapter9. Anthropogenic impacts on hydro-morphodynamic behaviour in the middle - lower course of Subarnarekha river, India.- Chapter10. Perturbation of the health of riverine ecosystem and its impact on the biogeochemical, ecological and molecular perspectives.- Chapter11. Assessment of habitat quality in quarried reach of alluvial river.- Chapter12. Physicochemical and microbial indicators for water quality assessment in an industrial catchment of river Damodar, India.- Chapter13. Assessment of heavy metal concentration in selected fish species in Subarnarekha River, India.- Chapter14. Assessment of water pollution and aquatic toxicity of the Churni River, India.- Chapter15. River corridor mapping and monitoring using Geospatial Technology.- Chapter16. Micro-plastic pollution in freshwater systems: A potential environmental threat.- Chapter17. Sand and Gravel Mining and its Consequences on Morphometry of Raidak-II River in Eastern Dooars, India.- Chapter18. Resuscitating the regional rivers: a crusade against cauvery crisis and coloured legislations.