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The effects of 17α-ethinylestradiol (EE2) on sex ratio, gonopodium morphology, and gonadal histology of C. decemmaculatus were assessed by a full-lifecycle exposure experiment. Newborn fish were waterborne exposed to 30, 100, and 300 ng EE2/L for 90 d, using 50 fish per treatment. Additionally, in December of 2016, a field survey was conducted on a C. decemmaculatus population inhabiting the Girado Creek downstream of the Chascomus city wastewater
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dc.contributor.author | Young, Brian Jonathan | |
dc.contributor.author | Cristos, Diego Sebastian | |
dc.contributor.author | Crespo, Diana Cristina | |
dc.contributor.author | Somoza, Gustavo Manuel | |
dc.contributor.author | Carriquiriborde, Pedro | |
dc.date.accessioned | 2020-12-11T19:45:31Z | |
dc.date.available | 2020-12-11T19:45:31Z | |
dc.date.issued | 2020-08-11 | |
dc.identifier.issn | 0147-6513 | |
dc.identifier.other | https://doi.org/10.1016/j.ecoenv.2020.111176 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/8401 | |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0147651320310150 | |
dc.description.abstract | The effects of 17α-ethinylestradiol (EE2) on sex ratio, gonopodium morphology, and gonadal histology of C. decemmaculatus were assessed by a full-lifecycle exposure experiment. Newborn fish were waterborne exposed to 30, 100, and 300 ng EE2/L for 90 d, using 50 fish per treatment. Additionally, in December of 2016, a field survey was conducted on a C. decemmaculatus population inhabiting the Girado Creek downstream of the Chascomus city wastewater effluent discharge. After 90 d of exposure, EE2 was able to histologically skew the sex ratio toward females and inhibit the full gonopodium development since the lowest tested concentration (LOEC = 30 ng/L). At higher concentrations, EE2 was toxic, inducing mortality in a concentration-dependent fashion (90 d-LC50 = 109.9 ng/L) and altering the gonadal histoarchitecture, causing neither testes nor ovaries discernible histologically (LOEC = 100 ng/L). In addition, a novel response, perianal hyperpigmentation, was discovered been induced by the EE2 exposure in a concentration-dependent fashion (90 d-EC50 = 39.3 ng/L). A higher proportion of females and perianal hyperpigmentation were observed in wild fish collected from the Girado Creek. The major reached conclusions are: i) EE2 induce different effects on the sexual traits of C. decemmaculatus when exposed from early-life or adult stages. ii) The most sensitive effects observed in the laboratory occur in a creek receiving wastewater effluent. iii) The perianal hyperpigmentation comes-up as a promising biomarker of exposure to estrogenic compounds. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Elsevier | |
dc.rights | info:eu-repo/semantics/openAccess | es_AR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
dc.source | Ecotoxicology and Environmental Safety 205 : art. 111176. (2020). | es_AR |
dc.subject | Melanins | eng |
dc.subject | Melaninas | es_AR |
dc.subject | Genetic Markers | eng |
dc.subject | Marcadores Genéticos | es_AR |
dc.subject.other | Endocrine Disruption | eng |
dc.subject.other | Alteración Endocrina | es_AR |
dc.subject.other | Xenoestrogen | eng |
dc.subject.other | Xenoestrógeno | es_AR |
dc.subject.other | Secondary Sexual Characteristics | eng |
dc.subject.other | Características Sexuales Secundarias | es_AR |
dc.subject.other | Biomarker | eng |
dc.subject.other | Biomarcador | es_AR |
dc.subject.other | Teleostei | es_AR |
dc.title | Effects of 17α-ethinylestradiol on sex ratio, gonadal histology and perianal hyperpigmentation of Cnesterodon decemmaculatus (Pisces, Poeciliidae) during a full-lifecycle exposure | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
dc.description.origen | IMyZA | es_AR |
dc.description.fil | Fil: Young, Brian Jonathan. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina. | es_AR |
dc.description.fil | Fil: Cristos, Diego Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Tecnología de Alimentos; Argentina. | es_AR |
dc.description.fil | Fil: Crespo, Diana Cristina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina. | es_AR |
dc.description.fil | Fil: Somoza, Gustavo Manuel. Instituto Tecnológico de Chascomús (CONICET-UNSAM); Argentina. | es_AR |
dc.description.fil | Fil: Carriquiriborde, Pedro. Universidad Nacional de La Plata - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Del Medioambiente. Facultad de Ciencias Exactas; Argentina. | es_AR |
dc.subtype | cientifico |
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