Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1181722
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dc.contributor.authorBLATT, T. L. da S.
dc.contributor.authorCARDOSO, A. J. da S.
dc.contributor.authorWATANABE, A. L.
dc.contributor.authorBUGLIONE NETO, C. C.
dc.contributor.authorHISANO, H.
dc.date.accessioned2025-11-19T19:48:41Z-
dc.date.available2025-11-19T19:48:41Z-
dc.date.created2025-11-19
dc.date.issued2025
dc.identifier.citationSustainability, v. 17, n. 13, article 5670, 2025.
dc.identifier.issn2071-1050
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1181722-
dc.descriptionAbstrract: This study aimed to evaluate the dynamics of total carbon (TC), total nitrogen (TN), total phosphorus (TP), and some indicators of environmental sustainability of Nile tilapia reared in a biofloc technology (BFT) system. Nile tilapia fingerlings were cultured in three BFT units of production (4.2 m3 each) at a stocking density of 395 fish/m3. After 70 days, the survival rate was 98.05%, with a final average weight of 20.43 g, and apparent feed conversion of 1.05. Nutrient inputs were from supply water, initial fish biomass, and feed; outputs were measured from the final fish biomass and effluent. TC, TN, and TP concentrations in the water increased linearly over time (p < 0.001) by 1.54, 1.66, and 0.44 mg/L, respectively. Feed contributed over 88% of nutrient inputs, while fish final biomass accounted for over 50% of output. Nutrient retention in fish final biomass was 29.74% (TC), 45.38% (TN), and 46.34% (TP). The system had low eutrophication potential, estimated at 57.39 kg TC, 20.02 kg TN, and 5.70 kg TP per ton of fish. Water use was minimal (0.0074 m3/ton), but energy demand was high (114.59 MJ/kg). The closed system reduces biodiversity risks by preventing fish escape. In conclusion, BFT supports high fish productivity with efficient nutrient use, minimal water use, and limited environmental impact, contributing to environmentally sustainable aquaculture.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectNutrient dynamics
dc.titleEnvironmental sustainability of Nile tilapia reared in Biofloc Technology (BFT) system: evaluation of carbon, nitrogen, and phosphorus dynamics and indicators of sustainability.
dc.typeArtigo de periódico
dc.subject.thesagroTilápia Nilótica
dc.subject.thesagroMétodo de Criação
dc.subject.thesagroQualidade da Água
dc.subject.thesagroNutrição Animal
dc.subject.thesagroEficiência Nutricional
dc.subject.nalthesaurusTilapia (common name)
dc.subject.nalthesaurusAquaculture systems
dc.subject.nalthesaurusEnvironmental sustainability
dc.subject.nalthesaurusEnvironmental indicators
dc.subject.nalthesaurusbiofloc technology
riaa.ainfo.id1181722
riaa.ainfo.lastupdate2025-11-19
dc.identifier.doihttps://doi.org/10.3390/su17135670
dc.contributor.institutionTAINARA LAISE DA SILVA BLATT, UNIVERSIDADE ESTADUAL DE MATO GROSSO DO SUL; ALEX JÚNIO DA SILVA CARDOSO; ANDRÉ LUIZ WATANABE, ITAIPU BINACIONAL; CELSO CARLOS BUGLIONE NETO, ITAIPU BINACIONAL; HAMILTON HISANO, CNPMA.
Appears in Collections:Artigo em periódico indexado (CNPMA)

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