Fish Farming: Techniques and Management provides accessible, globally informed guidance to modern aquaculture practices with relevance across diverse contexts. This comprehensive resource examines system evolution from traditional ponds to advanced technologies including recirculating aquaculture systems, offshore cages, and integrated approaches. Coverage systematically addresses site selection criteria, water quality parameters, pond design principles, stocking density calculations, and species-specific methodologies for tilapia, trout, salmon, catfish, and ornamental species. The book details sustainability tactics including feed efficiency optimization, water recycling systems, and ecosystem-friendly production models. Management chapters address fish health, biosecurity protocols, vaccination strategies, feeding optimization, integrated pest management, and business fundamentals including cost-benefit analysis, market assessment, and value addition opportunities. Advanced sections highlight climate-smart strategies such as recirculating aquaculture systems, offshore farming, digital innovations including artificial intelligence feeding and blockchain traceability, alternative protein feeds, and genetic improvement programs. Coverage emphasizes policy frameworks, regulatory compliance, ethical considerations, animal welfare standards, and community engagement models. Readers develop practical competencies in farm establishment, operational management, production optimization, and sustainability assessment. This volume serves farmers, aquaculture professionals, students, extension workers, policymakers, and entrepreneurs seeking practical knowledge for starting, scaling, and future-proofing fish farming operations globally.