Assessing the sustainability of tilapia farming in biofloc-based culture using emergy synthesis

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dc.contributor.authorDavid, Luiz H. [UNESP]
dc.contributor.authorPinho, Sara M. [UNESP]
dc.contributor.authorKeesman, Karel J.
dc.contributor.authorGarcia, Fabiana [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionWageningen University
dc.contributor.institutionSão José do Rio Preto
dc.date.accessioned2022-04-29T08:32:48Z
dc.date.available2022-04-29T08:32:48Z
dc.date.issued2021-11-01
dc.description.abstractBiofloc technology (BFT) has been called an environmentally friendly aquaculture approach. The sustainable characteristics of biofloc-based culture are usually linked to the efficient use of water and nutrients and the minimal discard of effluent to the environment. Given the scarcity of sustainability assessment of biofloc-based systems, it is still unclear whether the positive characteristics of BFT make it a real sustainable approach for aquaculture. This study aimed to investigate and apply the emergy synthesis to assess the sustainability of commercial Nile tilapia fingerlings production in a biofloc-based system. The tilapia fingerlings produced on the BFT farm showed a UEV of 2.04E + 03 sej/J, renewability of 32.73%, EYR of 1.00, EIR, and ELR of 2.05, and ESI of 0.49. Compared to other aquaculture systems, the evaluated BFT farm presented emergy indicators with values characteristic of potentially sustainable production. Electricity has the highest representativeness in the emergy input, making the system dependent on resources from the larger economy. The low UEV indicates that the BFT farm is efficient in terms of converting the invested emergy into the system's output (tilapia fingerlings). A sensitivity analysis shows that replacing the hydroelectric source of electricity with photovoltaic will not improve the emergy performance of the evaluated BFT farm.en
dc.description.affiliationSão Paulo State University (Unesp) Aquaculture Center of Unesp, Jaboticabal
dc.description.affiliationMathematical and Statistical Methods (Biometris) Wageningen University, P.O. Box 16
dc.description.affiliationFisheries Institute APTA/SAA São José do Rio Preto
dc.description.affiliationUnespSão Paulo State University (Unesp) Aquaculture Center of Unesp, Jaboticabal
dc.identifierhttp://dx.doi.org/10.1016/j.ecolind.2021.108186
dc.identifier.citationEcological Indicators, v. 131.
dc.identifier.doi10.1016/j.ecolind.2021.108186
dc.identifier.issn1470-160X
dc.identifier.scopus2-s2.0-85114675735
dc.identifier.urihttp://hdl.handle.net/11449/229498
dc.language.isoeng
dc.relation.ispartofEcological Indicators
dc.sourceScopus
dc.subjectAquaculture
dc.subjectBFT
dc.subjectEmergy synthesis
dc.subjectSustainability
dc.subjectTilapia farming
dc.titleAssessing the sustainability of tilapia farming in biofloc-based culture using emergy synthesisen
dc.typeArtigo

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Jaboticabal - CAUNESP - Centro de Aquicultura da Unesp