Master the fundamentals of aquatic microbiology with this essential guide for Indian students and researchers. Uncover the diverse microbial communities thriving in freshwater and marine ecosystems, and grasp critical concepts in microbial ecology and water quality assessment. This textbook offers deep insights into microbial processes impacting environmental health, making it an indispensable resource for aspiring microbiologists and environmental scientists across India. Equip yourself with the knowledge needed for academic success and professional practice in understanding aquatic life.