Category FAQs Search : Freshwater Aquaculture
Question: Water budgets for freshwater aquaculture ponds with reference to effluent volume
Answer: 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 be 10.3 m3/Kg of fish production under present study for semi-intensive culture and with supplemental feeding. Out of which 7.6 m3/Kg of fish production is system associated requirement. On an average the evaporation loss from the pond is 1498.3 mm/year and seepage loss per year is about 1182.60 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.
(Source: Pustaka Negeri Sarawak, 27 Jul 2021)
Source Link: https://www.scirp.org/html/1-3000439_35097.htm