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A protocol to develop a nutrient dynamics model for aquaponics systems through a mass balance analysis

Grant number: 17/14269-2
Support Opportunities:Research Grants - Young Investigators Grants
Duration: January 01, 2019 - December 31, 2022
Field of knowledge:Agronomical Sciences - Fishery Resources and Fishery Engineering - Aquaculture
Principal Investigator:Brunno da Silva Cerozi
Grantee:Brunno da Silva Cerozi
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated researchers:José Eurico Possebon Cyrino
Associated scholarship(s):22/03838-4 - Model application of integrated Nile tilapia production with hydroponic lettuce production to commercial aquaponics systems, BP.IC
22/03916-5 - Formulation of versatile diets to adjust the N: P: K ratio in aquaponic nutrient solutions: performance and health of Nile tilapia juveniles, and quality and quantity of lettuce biomass production, BP.IC
21/00936-2 - Formulation of versatile diets to adjust the N: P: K ratio in aquaponic nutrient solutions: performance and health of Nile tilapia (Oreochromis niloticus) juveniles, and quality and quantity of lettuce biomass production, BP.MS
+ associated scholarships 20/07234-0 - Validation of nutrient dynamics models in aquaponic systems through a mass balance analysis, BP.IC
19/09472-9 - A protocol to develop a nutrient dynamics model for aquaponics systems through a mass balance analysis, BP.IC
18/25683-7 - A protocol to develop a nutrient dynamics model for aquaponics systems through a mass balance analysis, BP.JP - associated scholarships

Abstract

Aquaponics is a new industry that has been developed with great potential worldwide. This relatively new food production system is a combination of fish and vegetable production in a closed-loop recirculating water system. Aquaponics eliminates the need of constantly adding chemical fertilizers to grow plants hydroponically since the system uses highly nutritious effluent produced by fish, which contains almost all nutrients required for optimum plant growth. At the same time, instead of wasting water loaded with fish waste, aquaponics uses plants to clean and purify the water, which is then returned to Aquaculture tanks. Therefore, water can be reused indefinitely and is only replenished to compensate for evapotranspiration losses. This is an environmentally sustainable technology that can generate several value-added products near large urban areas, because the systems can be even established in water-constrained regions. Thus, the objective of this project is to develop a new procedure for determining nutrient release coefficients in aquaponics systems through mass balance analysis using production of tilapia Oreochromis niloticus integrated with hydroponic lettuce. Ultimately, coefficients and models will be used to design a pilot project of a commercial aquaponics operation at small and medium scales. (AU)

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