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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/56251
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dc.creatorBruna Barçantept_BR
dc.creatorNilo de Oliveira Nascimentopt_BR
dc.creatorTalita Fernanda das Graças Silvapt_BR
dc.creatorLeandro Ambrózio dos Reispt_BR
dc.creatorAlessandra Gianipt_BR
dc.date.accessioned2023-07-14T19:26:28Z-
dc.date.available2023-07-14T19:26:28Z-
dc.date.issued2020-
dc.citation.volume117pt_BR
dc.citation.spage1pt_BR
dc.citation.epage11pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.ecolind.2020.106702pt_BR
dc.identifier.issn1872-7034pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/56251-
dc.description.resumoExternal nutrient inputs account for the main cause of eutrophication of aquatic systems and intensification of toxic cyanobacteria blooms. But internal loads from sediments significantly contribute to environmental degradation. In-lake treatments may therefore be combined to accelerate the restoration process. A tropical, eutrophic reservoir with persistent cyanobacteria blooms was subjected to applications of a lanthanum-enriched clay (Phoslock®) designed to control internal phosphorus loading. This study aimed to evaluate if the treatment could lead to cyanobacteria reduction and improvement of the phytoplankton community and environmental status. Data were obtained during the application and post-application months, and compared with pre-treatmentdatasets. Significantdecreaseinphosphorusconcentrationoccurred,butonlyinthesecondtreatmentyear. Cyanobacteria responded after five months of applications, reducing biomass with a 4-fold increase in water transparency, but blooms were able to re-establish. However, by the end of the second year and until the interruption of the treatment, cyanobacteria dominance was significantly reduced and replaced by a more diverse phytoplankton community rarely seen in this environment. At this time, the number of species belonging to groups other than cyanobacteria increased, characterizing more than 80% of the total of species. While pointing to the system resilience and the treatment limitations, this study also indicated that under a long-term control of phosphorus load, lakes could be restored and their aquatic communities recover. Decrease of cyanobacteria biomass and increase in non-cyanobacteria biodiversity were key factors to evaluate the treatment success. The study reinforces the importance of species and communities as sentinels of a healthier ecosystem.pt_BR
dc.languageporpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA HIDRÁULICApt_BR
dc.publisher.departmentICB - DEPARTAMENTO DE BOTÂNICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofEcological Indicatorspt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectPhoslockpt_BR
dc.subjectBiodiversitypt_BR
dc.subjectShallow urban lakespt_BR
dc.subjectPampulha reservoirpt_BR
dc.subjectWater managementpt_BR
dc.subject.otherBiodiversidadept_BR
dc.subject.otherLagospt_BR
dc.subject.otherPampulha, Lagoa da (MG)pt_BR
dc.titleCyanobacteria dynamics and phytoplankton species richness as a measure of waterbody recovery: response to phosphorus removal treatment in a tropical eutrophic reservoirpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S1470160X20306397pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6114-0654pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1212-2000pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4061-9639pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2524-8534pt_BR
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