Bioaccumulation and speciation of arsenic in plankton from tropical soda lakes along a salinity gradient

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Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.contributorGéoscience Environnement Toulouse (GET)-
Autor(es): dc.contributorSão Carlos Federal University-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorViana, José Lucas Martins-
Autor(es): dc.creatorSteffler, Débora Aparecida-
Autor(es): dc.creatorHernández, Amauris Hechavarría-
Autor(es): dc.creatordos Santos Costa, Juliana-
Autor(es): dc.creatorPellegrinetti, Thierry Alexandre-
Autor(es): dc.creatorde Jesus, Erick Christian Rodrigues-
Autor(es): dc.creatorCancian, Marianna-
Autor(es): dc.creatorFiore, Marli Fátima-
Autor(es): dc.creatorRezende-Filho, Ary T.-
Autor(es): dc.creatorSussulini, Alessandra-
Autor(es): dc.creatorBarbiero, Laurent-
Autor(es): dc.creatorMenegario, Amauri Antonio-
Autor(es): dc.creatorFostier, Anne Helene-
Data de aceite: dc.date.accessioned2025-08-21T21:59:33Z-
Data de disponibilização: dc.date.available2025-08-21T21:59:33Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-10-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2023.165189-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300243-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300243-
Descrição: dc.descriptionUptake and transformation of arsenic (As) by living organisms can alter its distribution and biogeochemical cycles in the environment. Although well known for its toxicity, several aspects of As accumulation and biological transformation by field species are still little explored. In this study, the bioaccumulation and speciation of As in phytoplankton and zooplankton from five soda lakes in the Brazilian Pantanal wetland were studied. Such lakes exhibited contrasting biogeochemical characteristics along an environmental gradient. Additionally, the influence of contrasting climatic events was assessed by collecting samples during an exceptional drought in 2017 and a flood in 2018. Total As (AsTot) content and speciation were determined using spectrometric techniques, while a suspect screening of organoarsenicals in plankton samples was carried out by high-resolution mass spectrometry. Results showed that AsTot content ranged from 16.9 to 62.0 mg kg−1 during the dry period and from 2.4 to 12.3 mg kg−1 during the wet period. The bioconcentration and bioaccumulation factors (BCF and BAF) in phytoplankton and zooplankton were found to be highly dependent on the lake typology, which is influenced by an ongoing evapoconcentration process in the region. Eutrophic and As-enriched lakes exhibited the lowest BCF and BAF values, possibly due to the formation of non-labile As complexes with organic matter or limited uptake of As by plankton caused by high salinity stress. The season played a decisive role in the results, as significantly higher BCF and BAF values were observed during the flooding event when the concentration of dissolved As in water was low. The diversity of As species was found to be dependent on the lake typology and on the resident biological community, cyanobacteria being responsible for a significant portion of As metabolism. Arsenosugars and their degradation products were detected in both phytoplankton and zooplankton, providing evidence for previously reported detoxification pathways. Although no biomagnification pattern was observed, the diet seemed to be an important exposure pathway for zooplankton.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstitute of Chemistry University of Campinas UNICAMP, P.O. Box 6154, SP-
Descrição: dc.descriptionCenter for Nuclear Energy in Agriculture University of São Paulo, Avenida Centenario 303, SP-
Descrição: dc.descriptionFederal University of South Mato Grosso (UFMS), MS-
Descrição: dc.descriptionUniversité P. Sabatier IRD CNRS OMP Géoscience Environnement Toulouse (GET), 14 Avenue Edouard Belin-
Descrição: dc.descriptionCenter of Sciences and Technologies for Sustainability São Carlos Federal University, SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) Environmental Studies Center, Av. 24-A, 1515, SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) Environmental Studies Center, Av. 24-A, 1515, SP-
Descrição: dc.descriptionCNPq: 142323/2017-9-
Descrição: dc.descriptionFAPESP: 2017/12644-0-
Descrição: dc.descriptionFAPESP: 2017/23301-7-
Descrição: dc.descriptionFAPESP: 2019/18124-4-
Descrição: dc.descriptionFAPESP: 2021/05683-5-
Descrição: dc.descriptionFAPESP: 2021/05927-1-
Descrição: dc.descriptionCNPq: 304849/2016-2-
Idioma: dc.languageen-
Relação: dc.relationScience of the Total Environment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEutrophication-
Palavras-chave: dc.subjectOrganic matter-
Palavras-chave: dc.subjectPhytoplankton-
Palavras-chave: dc.subjectSuspect screening-
Palavras-chave: dc.subjectZooplankton-
Título: dc.titleBioaccumulation and speciation of arsenic in plankton from tropical soda lakes along a salinity gradient-
Tipo de arquivo: dc.typelivro digital-
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