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

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Autor(es): dc.contributorUniversidad de Cuenca-
Autor(es): dc.contributorUniversity of Aveiro-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorPontificia Universidad Católica del Ecuador-
Autor(es): dc.contributorUniversity of Arizona-
Autor(es): dc.contributorUniversidad Nacional Autónoma de México-
Autor(es): dc.creatorPinos-Velez, V. P.-
Autor(es): dc.creatorAraujo, G. S.-
Autor(es): dc.creatorEcheverria-Paredes, P.-
Autor(es): dc.creatorAbril, M.-
Autor(es): dc.creatorAcosta, S.-
Autor(es): dc.creatorCipriani-Ávila, I.-
Autor(es): dc.creatorMoulatlet, G. M.-
Autor(es): dc.creatorCapparelli, M. V.-
Data de aceite: dc.date.accessioned2025-08-21T17:46:00Z-
Data de disponibilização: dc.date.available2025-08-21T17:46:00Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00128-024-03946-2-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/308722-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/308722-
Descrição: dc.descriptionEcuador’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.-
Descrição: dc.descriptionDepartamento de Biociencias Facultad de Ciencias Químicas IRCMA Universidad de Cuenca-
Descrição: dc.descriptionDepartamento de Recursos Hídricos y Ciencias Ambientales Universidad de Cuenca-
Descrição: dc.descriptionDepartment of Biology & amp; CESAM University of Aveiro-
Descrição: dc.descriptionNEPEA Universidade Estadual Paulista Júlio de Mesquita Filho, Campus do Litoral Paulista, Praça Infante Dom Henrique, S/N, SP-
Descrição: dc.descriptionEscuela de Química Facultad de Ciencias Exactas y Naturales Pontificia Universidad Católica del Ecuador-
Descrição: dc.descriptionThe Arizona Institute for Resilience University of Arizona-
Descrição: dc.descriptionDepartment of Ecology and Evolutionary Biology University of Arizona-
Descrição: dc.descriptionEstación el Carmen Instituto de Ciencias del Mar y Limnología Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real Km 9.5, Campeche-
Descrição: dc.descriptionNEPEA Universidade Estadual Paulista Júlio de Mesquita Filho, Campus do Litoral Paulista, Praça Infante Dom Henrique, S/N, SP-
Idioma: dc.languageen-
Relação: dc.relationBulletin of Environmental Contamination and Toxicology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEC50-
Palavras-chave: dc.subjectLOEC-
Palavras-chave: dc.subjectNOEC-
Palavras-chave: dc.subjectPotentially toxic elements-
Palavras-chave: dc.subjectWetlands-
Título: dc.titleAcute and Chronic Ecotoxicity of Daphnia magna Exposed to Ash Leachate from the Cotopaxi Volcano, Ecuador-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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