Acute and Chronic Ecotoxicity of Daphnia magna Exposed to Ash Leachate from the Cotopaxi Volcano, Ecuador
| dc.contributor.author | Pinos-Velez, V. P. | |
| dc.contributor.author | Araujo, G. S. [UNESP] | |
| dc.contributor.author | Echeverria-Paredes, P. | |
| dc.contributor.author | Abril, M. | |
| dc.contributor.author | Acosta, S. | |
| dc.contributor.author | Cipriani-Ávila, I. | |
| dc.contributor.author | Moulatlet, G. M. | |
| dc.contributor.author | Capparelli, M. V. | |
| dc.contributor.institution | Universidad de Cuenca | |
| dc.contributor.institution | University of Aveiro | |
| dc.contributor.institution | Universidade Estadual Paulista (UNESP) | |
| dc.contributor.institution | Pontificia Universidad Católica del Ecuador | |
| dc.contributor.institution | University of Arizona | |
| dc.contributor.institution | Universidad Nacional Autónoma de México | |
| dc.date.accessioned | 2025-04-29T20:13:26Z | |
| dc.date.issued | 2024-09-01 | |
| dc.description.abstract | Ecuador’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.affiliation | Departamento de Biociencias Facultad de Ciencias Químicas IRCMA Universidad de Cuenca | |
| dc.description.affiliation | Departamento de Recursos Hídricos y Ciencias Ambientales Universidad de Cuenca | |
| dc.description.affiliation | Department of Biology & amp; CESAM University of Aveiro | |
| dc.description.affiliation | NEPEA Universidade Estadual Paulista Júlio de Mesquita Filho, Campus do Litoral Paulista, Praça Infante Dom Henrique, S/N, SP | |
| dc.description.affiliation | Escuela de Química Facultad de Ciencias Exactas y Naturales Pontificia Universidad Católica del Ecuador | |
| dc.description.affiliation | The Arizona Institute for Resilience University of Arizona | |
| dc.description.affiliation | Department of Ecology and Evolutionary Biology University of Arizona | |
| dc.description.affiliation | Estación el Carmen Instituto de Ciencias del Mar y Limnología Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real Km 9.5, Campeche | |
| dc.description.affiliationUnesp | NEPEA Universidade Estadual Paulista Júlio de Mesquita Filho, Campus do Litoral Paulista, Praça Infante Dom Henrique, S/N, SP | |
| dc.identifier | http://dx.doi.org/10.1007/s00128-024-03946-2 | |
| dc.identifier.citation | Bulletin of Environmental Contamination and Toxicology, v. 113, n. 3, 2024. | |
| dc.identifier.doi | 10.1007/s00128-024-03946-2 | |
| dc.identifier.issn | 1432-0800 | |
| dc.identifier.issn | 0007-4861 | |
| dc.identifier.scopus | 2-s2.0-85202997238 | |
| dc.identifier.uri | https://hdl.handle.net/11449/308722 | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Bulletin of Environmental Contamination and Toxicology | |
| dc.source | Scopus | |
| dc.subject | EC50 | |
| dc.subject | LOEC | |
| dc.subject | NOEC | |
| dc.subject | Potentially toxic elements | |
| dc.subject | Wetlands | |
| dc.title | Acute and Chronic Ecotoxicity of Daphnia magna Exposed to Ash Leachate from the Cotopaxi Volcano, Ecuador | en |
| dc.type | Artigo | pt |
| dspace.entity.type | Publication | |
| unesp.author.orcid | 0000-0001-8278-5873[1] |

