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This paper presents the consumptive water use for freshwater pond
aquaculture for semi-intensive carps farming practices. The consumptive use
of water includes evaporation loss, seepage loss and water exchanges requirements.
The water requirement has been estimated to be10.3 m3/Kg of fish production under present
study for semi-intensive culture and with supplemental feeding. Out of which7.6 m3/Kg of fish production is
system associated requirement. On an average the evaporation loss from the pond
and seepage loss per year is about1182.60 mm/year. Seepage and water exchange losses
recharge the ground water aquifers and if they are treated and recycled, the
water use in aquaculture can be reduced significantly. A further reduction in
fresh water use in pond aquaculture is possible through development of
intensive and superintensive culture systems and aqua feeds.