Aquaculture Technology : Aquatech Publication : 9783902855244 : 390285524X : 16 Jan 2018 : The need and demand for fish and seafood are rising continually worldwide, and wild fish stocks are steadily becoming scarcer and scarcer. Aquaculture is a young and innovative part of the economy with high growth rates and secured prospects. The future of fish production requires that water be used as economically as possible, and that waste products be removed safely with the lowest possible energy consumption. Environmental legislation is progressively reducing the possibilities of open water fish production and existing fish farms are confronted with directives for purifying their waste discharges. This has acellerated the development of intensive, water-saving Systems for fish production, which do not depend upon natural environmental factors. Production in closed water Systems offers a more compact growing Environment for the fish, lower shared personnel costs and the potential for good pro