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Acute and Chronic Ecotoxicity of Daphnia magna Exposed to Ash Leachate from the Cotopaxi Volcano, Ecuador

dc.contributor.authorPinos-Velez, V. P.
dc.contributor.authorAraujo, G. S. [UNESP]
dc.contributor.authorEcheverria-Paredes, P.
dc.contributor.authorAbril, M.
dc.contributor.authorAcosta, S.
dc.contributor.authorCipriani-Ávila, I.
dc.contributor.authorMoulatlet, G. M.
dc.contributor.authorCapparelli, M. V.
dc.contributor.institutionUniversidad de Cuenca
dc.contributor.institutionUniversity of Aveiro
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionPontificia Universidad Católica del Ecuador
dc.contributor.institutionUniversity of Arizona
dc.contributor.institutionUniversidad Nacional Autónoma de México
dc.date.accessioned2025-04-29T20:13:26Z
dc.date.issued2024-09-01
dc.description.abstractEcuador’s wetlands and aquatic ecosystems are chronically exposed to ash contamination due to the frequent volcanoes’ eruptions in the country. Still, the short and long-term effects of ash contamination on the aquatic biota are not well understood. We used ashes released by the Cotopaxi volcano in 2016 to investigate their acute and chronic effects in Daphna magna. We calculated the half maximal effective concentration (EC50) after 2 and 21 days of exposure, the non-observed effect concentration (NOEC), and the lowest observed effect concentration (LOEC) on offspring production. We also analyzed the metal concentration present in the ashes. The EC50 values at 2 and 21 days were found at 80% and 5% ash leachate concentrations, respectively. After 21 days of exposure, high mortality and low neonatal production were observed in all leachate concentrations (NOEC was at 15%, and LOEC was at 20% leachate concentration). Our results suggest that the ashes from the Cotopaxi volcano can cause acute and chronic toxicity to aquatic life and should be classified as hazardous waste, depending on the dose. There is an urgent need for further studies that assess toxicity caused by the intense volcanic activity in Ecuador.en
dc.description.affiliationDepartamento de Biociencias Facultad de Ciencias Químicas IRCMA Universidad de Cuenca
dc.description.affiliationDepartamento de Recursos Hídricos y Ciencias Ambientales Universidad de Cuenca
dc.description.affiliationDepartment of Biology & amp; CESAM University of Aveiro
dc.description.affiliationNEPEA Universidade Estadual Paulista Júlio de Mesquita Filho, Campus do Litoral Paulista, Praça Infante Dom Henrique, S/N, SP
dc.description.affiliationEscuela de Química Facultad de Ciencias Exactas y Naturales Pontificia Universidad Católica del Ecuador
dc.description.affiliationThe Arizona Institute for Resilience University of Arizona
dc.description.affiliationDepartment of Ecology and Evolutionary Biology University of Arizona
dc.description.affiliationEstación el Carmen Instituto de Ciencias del Mar y Limnología Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real Km 9.5, Campeche
dc.description.affiliationUnespNEPEA Universidade Estadual Paulista Júlio de Mesquita Filho, Campus do Litoral Paulista, Praça Infante Dom Henrique, S/N, SP
dc.identifierhttp://dx.doi.org/10.1007/s00128-024-03946-2
dc.identifier.citationBulletin of Environmental Contamination and Toxicology, v. 113, n. 3, 2024.
dc.identifier.doi10.1007/s00128-024-03946-2
dc.identifier.issn1432-0800
dc.identifier.issn0007-4861
dc.identifier.scopus2-s2.0-85202997238
dc.identifier.urihttps://hdl.handle.net/11449/308722
dc.language.isoeng
dc.relation.ispartofBulletin of Environmental Contamination and Toxicology
dc.sourceScopus
dc.subjectEC50
dc.subjectLOEC
dc.subjectNOEC
dc.subjectPotentially toxic elements
dc.subjectWetlands
dc.titleAcute and Chronic Ecotoxicity of Daphnia magna Exposed to Ash Leachate from the Cotopaxi Volcano, Ecuadoren
dc.typeArtigopt
dspace.entity.typePublication
unesp.author.orcid0000-0001-8278-5873[1]

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