support of the NFDB is a testimony to the determination of the institute for providing necessary support for hatchery technologies of commercially important food fishes that will enhance their mariculture prospects. Integrated Multi-Trophic Aquaculture, a novel method Integrated Multi-Trophic Aquaculture (IMTA) is the practice which combines appropriate proportions of finfish/shrimp with shell/ herbivorous fish and seaweeds in farming to create balanced systems for environmental and economic stability. The CMFRI has successfully conducted the demonstration of IMTA under participatory mode with fishermen groups by integrating seaweed with cage farming of cobia. It has been proved that in one crop of 45 days the seaweed rafts integrated with cobia cage will give an average yield of per raft against a control, which yielded per raft. Marine biotechnology Bioprospecting of marine and oceanic resources, through which the institute has produced several nutraceuticals useful for treating life style diseases and dietary supplements from seaweeds has been recognised. The institute has developed and commercialized the nutraceutical products CadalminTM Green Algal extract (CadalminTMGAe) and Antidiabetic extract (CadalminTMADe to combat rheumatic arthritic pains and type-2 diabetes, respectively. Nutraceuticals from seaweeds to combat dyslipidemia and obesity and treat hypo-thyroid have also been developed and products are being out-licensed to pharmaceutical companies. βNodadetect a single tube RT lamp diagnostic for β-Noda virus detection in marine fish of mariculture interest has been developed by the institute. This highly specific, sensitive and rapid method of screening marine broodstock fish ensures certified specific pathogen free eggs and larvae. To understand the population genetic structure of fishery resources in Indian waters specific studies were carried out. The complete mitogenome characterisation of Etroplus suratensis from Vembanad Lake, genetic stock structure investigations in Lutjanus argentimaculatus and Indian oil sardine Sardinella longiceps and bioprospecting for biotic and abiotic stress responsive genes from Crassostrea madrasensis and their characterisation have yielded valuable baseline data,,. CMFRI's major contributions to the nation Estimation of the multispecies multi-gear marine fish landings for more than 1200 species covering 1511 fish landing centres on a GIS platform from the EEZ of India for marine fish stock assessment following the self-developed stratified multi-stage random sampling design and maintaining a National Marine Fishery Resources Database which is generated based on continuous and perpetual field data collection on marine fishery resources over decades, Annual estimation of marine fish landings at landing centre and retail market level carried out to work out the contribution of fisheries sector