NARASIMHA MURTHY, M. N., B.F.Sc.2019-07-052019-07-052011http://krishikosh.egranth.ac.in/handle/1/5810112868The global production of fish, crustaceans and molluscs has continued to increase and reached 144.6 million tonnes in 2008. While capture production has stayed around 92 million tones since 2001. The aquaculture production has continued to show strong growth, increasing at an average annual growth rate of 6.5% from 36.8 million tonnes in 2002 to 52.6 million tonnes in 2008 (FAO, 2011). India ranks second among top ten countries in aquaculture production with an average annual percent growth rate of 5.71 during 2006Thesis