Modelling FLOCponics systems: Towards improved water and nitrogen use efficiency in biofloc-based fish culture

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dc.contributor.authorPinho, Sara M. [UNESP]
dc.contributor.authorde Lima, Jéssica P. [UNESP]
dc.contributor.authorTarigan, Nurhayati Br
dc.contributor.authorDavid, Luiz H. [UNESP]
dc.contributor.authorPortella, Maria Célia [UNESP]
dc.contributor.authorKeesman, Karel J.
dc.contributor.institutionWageningen University
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionLeibniz-Institute of Vegetable and Ornamental Crops (IGZ)
dc.date.accessioned2023-07-29T13:50:09Z
dc.date.available2023-07-29T13:50:09Z
dc.date.issued2023-05-01
dc.description.abstractFLOCponics is an integrated agri-aquaculture system, in which water and nutrients from a biofloc-based fish culture are reused to fertilise soilless plants. This paper is the first modelling study that focuses on decoupled FLOCponics with the aim of investigating and discussing whether the integration of biofloc-based culture with soilless plant production increases the efficiency of food production in terms of resource use and by how much. For this purpose, a biofloc-based monoculture system with a total volume of the fish tanks of 15.2 m3, and a FLOCponics system with similar biofloc system and a planting area of 33.6 m2 was modelled. The simulation models of these reference systems were run for a period of five years, and water, nitrogen and total suspended solid balances in both systems were compared. In addition to this, various planting areas of the FLOCponics system were changed step-wise until the most suitable size was found. The results indicate that FLOCponics is 10% and 27% more efficient in using water and nitrogen, respectively, than the stand-alone biofloc system. Also, the integrated system results in a reduction of 10% in the amount of solids discharged. Optimisation of the planting area with respect to key model outputs led to an improved FLOCponics system, where the planting area of the system is expanded by a factor of 3.2. The findings presented in this study support the hypothesis that integrating a biofloc system with hydroponics makes biofloc-based fish culture more efficient in terms of resource use and wastes avoidance.en
dc.description.affiliationMathematical and Statistical Methods (Biometris) Wageningen University, P.O. Box 16
dc.description.affiliationSão Paulo State University (Unesp) Aquaculture Center of Unesp, SP
dc.description.affiliationLeibniz-Institute of Vegetable and Ornamental Crops (IGZ)
dc.description.affiliationUnespSão Paulo State University (Unesp) Aquaculture Center of Unesp, SP
dc.format.extent96-115
dc.identifierhttp://dx.doi.org/10.1016/j.biosystemseng.2023.03.022
dc.identifier.citationBiosystems Engineering, v. 229, p. 96-115.
dc.identifier.doi10.1016/j.biosystemseng.2023.03.022
dc.identifier.issn1537-5110
dc.identifier.scopus2-s2.0-85152126142
dc.identifier.urihttp://hdl.handle.net/11449/248662
dc.language.isoeng
dc.relation.ispartofBiosystems Engineering
dc.sourceScopus
dc.subjectAquaponics
dc.subjectBiofloc system
dc.subjectFLOCponics
dc.subjectNutrient use efficiency
dc.subjectWater use efficiency
dc.titleModelling FLOCponics systems: Towards improved water and nitrogen use efficiency in biofloc-based fish cultureen
dc.typeArtigo
unesp.author.orcid0000-0002-4541-7729 0000-0002-4541-7729 0000-0002-4541-7729[1]
unesp.author.orcid0000-0002-3162-1470[3]
unesp.author.orcid0000-0003-4505-8663[6]

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Jaboticabal - CAUNESP - Centro de Aquicultura da Unesp