Environmental Accounting of the Yellow-Tail Lambari Aquaculture: Sustainability of Rural Freshwater Pond Systems

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dc.contributor.authorFonseca, Tamaraen
dc.contributor.authorValenti, Wagner C.en
dc.contributor.authorGiannetti, Biagio F.en
dc.contributor.authorGonçalves, Fernando Henrique A.en
dc.contributor.authorAgostinho, Fenien
dc.date.accessioned2021-12-14T15:43:26Zen
dc.date.available2021-12-14T15:43:26Zen
dc.date.issued2021-12-08en
dc.date.updated2021-12-14T15:43:26Zen
dc.description.abstractFreshwater pond aquaculture is the prevailing fish culture system worldwide, especially in developing countries. Climate change outcomes and inadequate environmental practices challenge its sustainability. This study applies emergy synthesis to assess the environmental performance of freshwater pond aquaculture in Brazil, aiming to identify and propose practices towards sustainability. As a study model, nine semi-intensive lambari farms operating at three levels of management were evaluated: low (LC), moderate (MC) and high (HC) control. Results showed that the main inputs for LC were services (27-46%), feed (7-39%), and water (15-21%), while for the MC and HC farms, they were feed (35-49% and 17-48%, respectively) and services (33-39% and 26-36%, respectively). All farms required more than 60% of their emergy from purchased inputs, resulting in low emergy sustainability index (ESI = 0.1-0.5). Replacing animal protein and oil on diet composition by vegetal sources, using superficial water instead of springwater, increasing juvenile productivity, and controlling pond fertilization can lead all systems to higher efficiency and resilience, increasing sustainability.en
dc.description.versionSubmitted versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.20944/preprints202112.0130.v1en
dc.identifier.orcidGoncalves, Fernando Henrique A [0000-0002-3555-3014]en
dc.identifier.urihttp://hdl.handle.net/10919/106978en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleEnvironmental Accounting of the Yellow-Tail Lambari Aquaculture: Sustainability of Rural Freshwater Pond Systemsen
dc.typeArticleen
dc.type.dcmitypeTexten
dc.type.otherArticleen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Virginia Seafood ARECen

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