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Impact of 2,4-D and fipronil on the tropical midge Chironomus sancticaroli (Diptera: Chironomidae)

2021-02Artigo científico Acesso aberto
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dc.contributor.authorPinto, Thandy Junio da Silva
dc.contributor.authorMoreira, Raquel Aparecida
dc.contributor.authorSilva, Laís Conceição Menezes da
dc.contributor.authorYoshii, Maria Paula Cardoso
dc.contributor.authorGoulart, Bianca Veloso
dc.contributor.authorFraga, Priscille Dreux
dc.contributor.authorMontagner, Cassiana Carolina
dc.contributor.authorDaam, Michiel Adriaan
dc.contributor.authorEspindola, Evaldo Luiz Gaeta
dc.contributor.institutionCENSE - Centro de Investigação em Ambiente e Sustentabilidade
dc.contributor.institutionDCEA - Departamento de Ciências e Engenharia do Ambiente
dc.contributor.pblAcademic Press | Elsevier
dc.date.accessioned2021-10-13T23:19:24Z
dc.date.available2021-10-13T23:19:24Z
dc.date.issued2021-02
dc.descriptionBrazil, grant no. 2015/18790-3 FAPESP (2017/24126-4) FAPESP 2019/04198-6)
dc.description.abstractIncreased use of pesticides in conventional agriculture implies potential risks to the environment. In aquatic ecosystems, benthic organisms may be exposed to pesticides via contaminated water and sediment, leading to several potential cascading effects on the food web. The aim of this study was to assess the functional implications of environmental realistic concentrations of the herbicide 2,4-D and the insecticide fipronil (alone and in combination) to the native tropical chironomid Chironomus sancticaroli. These two pesticides are widely applied to different crops and have frequently been detected (together) in surface water bodies in Brazil and elsewhere. Commercial products containing fipronil (Regent® 800WG) and 2,4-D (DMA® 806BR) were evaluated in 8-day toxicity tests for their effects on larval survival, growth (body length and biomass), head capsule width, development, and mentum deformities. Fipronil decreased the larval survival at the highest test concentration and the effective concentrations (EC) after eight days of exposure were: EC10 = 0.48 µg L−1 (0.395–0.565), EC20 = 1.06 µg L−1 (0.607–1.513), and EC50 = 3.70 µg L−1 (1.664–5.736). All sublethal test concentrations of fipronil decreased the larval growth, causing reductions in biomass up to 72%. The two highest test concentrations of fipronil decreased the head capsule width and after exposure to 3.7 µg fipronil L−1, only half of the larvae reached the fourth instar. The incidence of deformities was increased by fipronil in a concentration dependent manner with an increase ranging from 23% to 75%. The highest test concentration of 2.4-D (426 µg L−1) decreased the head capsule width, but larval development was unaffected at all concentrations evaluated. In the mixture tests, antagonism was observed at lower fipronil concentrations and synergism at higher fipronil concentrations for growth. The incidence of deformities rose with increasing fipronil concentrations. The results showed that environmental realistic concentrations of fipronil may have serious ecological implications for C. sancticaroli populations and that a mixture with the herbicide 2,4-D can have synergistic effects, potentiating the risks to the aquatic ecosystem.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent2790607
dc.identifier.doi10.1016/j.ecoenv.2020.111778
dc.identifier.issn0147-6513
dc.identifier.otherPURE: 28118549
dc.identifier.otherPURE UUID: 43d66a69-0f6b-458d-8c76-d200d387d52c
dc.identifier.otherScopus: 85097753508
dc.identifier.otherPubMed: 33338803
dc.identifier.otherWOS: 000611821500012
dc.identifier.otherORCID: /0000-0001-9203-5400/work/101365025
dc.identifier.urihttp://hdl.handle.net/10362/126069
dc.identifier.urlhttps://www.scopus.com/pages/publications/85097753508
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04085%2F2020/PT
dc.relationCenter for Environmental and Sustainability Research
dc.subjectLarval development
dc.subjectLarval growth
dc.subjectMentum deformity
dc.subjectPesticides
dc.subjectSublethal effects
dc.subjectSynergism
dc.subjectPollution
dc.subjectPublic Health, Environmental and Occupational Health
dc.subjectHealth, Toxicology and Mutagenesis
dc.subjectSDG 3 - Good Health and Well-being
dc.titleImpact of 2,4-D and fipronil on the tropical midge Chironomus sancticaroli (Diptera: Chironomidae)en
dc.typejournal article
degois.publication.titleEcotoxicology and Environmental Safety
degois.publication.volume209
dspace.entity.typePublication
oaire.awardNumberUIDB/04085/2020
oaire.awardTitleCenter for Environmental and Sustainability Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04085%2F2020/PT
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublication1cc967d8-7733-4838-87f1-bf163f81e96d
relation.isProjectOfPublication.latestForDiscovery1cc967d8-7733-4838-87f1-bf163f81e96d

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