Abstract
Broad studies and researches on fish farming in rice field have enumerated various biological and ecological advantages; the most important being effective biological weed and pest control, reduction in pollution, and environmental sustainability. Other advantages include the increased ion contents of soil, expansion in leaf area and root network activity in rice plants, and help overcome protein deficiency in the diet of the rural poor. The other spin offs are fish excreta as manure and conversion of unproductive swamps into productive system through proper land revitalizing.
Highlights
Rizipisciculture, rearing fish along with paddy is a sustainable system involving concurrent harvesting of paddy and fish as a unit reaping multiple benefits
Researches related to rizipisciculture indicate that promoting aquaculture will put the agriculture water and land resources to double usage in addition to profitable use of water logged areas yielding valuable economic, social and environmental dividend (Saha and Nath, 2013)
Fish species best suited for rizipisciculture The fish species should be able to thrive in shallow water, tolerate temperature fluctuations, withstand high turbidity, and grow to marketable size in a short period
Summary
Rizipisciculture, rearing fish along with paddy is a sustainable system involving concurrent harvesting of paddy and fish as a unit reaping multiple benefits. Fish species best suited for rizipisciculture The fish species should be able to thrive in shallow water, tolerate temperature fluctuations, withstand high turbidity, and grow to marketable size in a short period Species such as Catla catla, Labeo rohita, Tilapia mossambicus, Cyprinus carpio, Cirrhinus mrigala, Clarias batrachus, Anabas testudineus, Heteropneustes fossilis, Channa punctatus and Channa gachua are suitable to be cultured in paddy fields. Fish culture in rotation is a more efficient and profitable proposition It helps in overcoming the various disadvantages of simultaneous fish culture (e.g. water depth, limitation of growth time, and high loss ratio etc.) and is independent of the paddy crop for fertilization and intensification (Natuhara, 2013). It has been suggested to adapt such techniques for other areas where there are scope of fish production in rice fields to achieve sustainability
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