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 is1498.3 mm/year 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.
展开▼
机译:Compte de gestion et bilan financier afferents aux operations du budget de l'exercice 1976. Volume III-B。第III节 - 委员会。附件I:Credits de recherches et d'Investissement(Deuxieme partie du budget)=与执行1976年预算有关的管理账户和资产负债表。第III-B卷。第三节 - 委员会。附件I:研究和投资信贷(预算的第二部分)