International Water Management Institute (IWMI) revealed that by 2025, nearly 1/3rd of world’s population would live in the regions of severe water scarcity and the same proportion of population in India could face absolute water scarcity. Since water is the prime requirement for aquaculture activity, maintaining the pace of aquaculture activity, maintaining the pace of aquaculture development is possible only through its adequate availability for aquaculture besides satisfying the agricultural, industrial and domestic need. Attempts are being made to develop a suitable model to predict the water requirement in aquaculture pond. The water budgeting for different species and target of productions will form the practical tools for generating useful information for mitigating the challenges on water for aquatic production.
The increasing pressure on freshwater resources coupled with increase in demand for more fish production have necessitated exploring possibility of increasing water productivity through multiple water use and recycling waste water. Aquaculture offers opportunity for productive utilization of waste water resources for fish protein production while ensuing the treatment of waste which otherwise would have on-station researches on the efficacies of waste water utilization in aquaculture vis-à-vis conventional feed based fish production indicated promising results with added advantage of harvesting more crops per drop of waste water. Low value water from various sources such as dairy, brewery, rice mill, food and beverage plants, silk reeling industries have been effectively incorporated with aquaculture system for fish production, realizing the increased water productivity.
Source: Aqua Aquaria India