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Not AvailableIntensification, mechanization and automation in agriculture are very much popular worldwide. A similar path may be appropriate for aquaculture since automation of aquaculture systems will allow the industry to: site production near markets; improve environmental control; reduce catastrophic losses; minimize production costs; and improve product quality. The history of automated control in aquaculture is limited and needs more attention; most of the systems have been custom-designed. The current trend is toward the use of industrial process control systems composed of sensors/transducers, meters/transmitters, communication multiplexers, actuators/output devices, computer hardware and computer control software. These process control systems can be as simple as one computer or as sophisticated as distributed control systems (multiple networked microcomputers). Therefore, there is a need to present a systematic review on aquaculture systems. Hence, in the present study review on different types of automatic and demand based feeder used in aqua culture production systems are presented.Not Availabl