Discover the vital dynamics of Indian hill stream ecology with this comprehensive guide. Delve into the intricate biotic and abiotic factors shaping aquatic life in Himalayan streams, using Sahastradhara as a detailed case study. Understand critical aspects like water quality, physico-chemical parameters, plankton, benthos, fish diversity, and the significant impacts of human activities. The book also explores the Vedic significance of rivers and national water policy, offering unique insights into water management in India. Essential reading for environmental science students, researchers, and conservationists passionate about preserving India’s aquatic ecosystems.