Chapter 1_ Recent developments in Biosensor Technology for Fisheries and Aquaculture -- Chapter 2_Application of CRISPR-Cas9 Technology in Fish -- Chapter 3_ Nano-technological applications in Aquatic Health Management -- Chapter 4_Phenotypic plasticity and transgenerational immune priming: opportunities and potential in fisheries -- Chapter 5_Heat shock proteins in stress response: a promising tool for fish health management -- Chapter 6_Immunostimulants: Boon for disease management in Aquaculture -- Chapter 7_Molecular markers and their application in fisheries and aquaculture -- Chapter 8_Applications of Electronics in Fisheries and Aquaculture -- Chapter 9_Metatranscriptomics: A tool to study the host-microbe interactions and functional profile of fish intestinal microbiota under changing environmental conditions -- Chapter 10_Bioremediation and its application in aquaculture -- Chapter 11_Application of Probiotics in Aquaculture -- Chapter 12_Identifying novel antibiotic resistance genes(ARGs): Important aspect of metagenomic research.