Fish Nutrigenomics and Molecular Strategies for Sustainable Aquaculture

The emerging field of fish nutrigenomics bridges nutritional science and molecular biology to explore how dietary inputs influence gene expression, metabolic regulation, and phenotypic outcomes in aquaculture species. This book highlights the molecular underpinnings of fish nutrition, highlighting the application of omics technologies—such as transcriptomics, proteomics, and metabolomics—for evaluating feed efficiency, growth performance, immune response, and environmental resilience in aquatic organisms.

It also examines how environmental stressors interact with feed composition to modulate gene expression, with particular attention to tissue-specific responses in organs like the liver, intestine, gill, and muscle. The book further discusses epigenetic regulation, including DNA methylation and non-coding RNAs, which mediate long-term and potentially transgenerational effects of nutritional programming.

Additionally, it addresses the complexities and opportunities of integrating multi-omics data through systems biology approaches to enable feed optimisation and biomarker discovery.

Special emphasis is placed on the relevance of these insights to tropical aquaculture systems, involving species such as Nile tilapia, African catfish, and Pacific white shrimp. By aligning molecular discoveries with practical feed formulation and selective breeding, this book addresses key knowledge gaps and supports the transition to sustainable, precision-based aquaculture.

It serves not only as an academic reference and technical resource for researchers, educators, and industry stakeholders aiming to apply nutrigenomic approaches to enhance aquaculture productivity, environmental stewardship, and global food security.