Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure

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Agroecosystems are usually polluted with a wide variety of contaminants with pesticides being very frequently detected. Endosulfan, an organochlorine pesticide, has been shown to cause both lethal and sublethal effects on aquatic organisms such as amphibians and especially on its early developmental...

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Autores principales:	Svartz, Gabriela Veronica, Marino, Damian Jose Gabriel, Ronco, Alicia Estela, Perez Coll, Cristina Silvia
Formato:	publishedVersion Artículo
Lenguaje:	Inglés
Publicado:	Springer 2015
Materias:	CYPERMETHRIN DIFFERENTIAL UPTAKE ENDOSULFAN SULETHAL EXPOSURE AMPHIBIANS CIENCIAS ATMOSFÉRICAS CIENCIAS DE LA TIERRA Y EL MEDIO AMBIENTE
Acceso en línea:	https://ri.unsam.edu.ar/handle/123456789/979
Aporte de:	Repositorio Institucional de la UNSAM de Universidad Nacional de General San Martín

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spelling	I78-R216-123456789-9792023-03-27T19:21:23Z Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure Svartz, Gabriela Veronica Marino, Damian Jose Gabriel Ronco, Alicia Estela Perez Coll, Cristina Silvia CYPERMETHRIN DIFFERENTIAL UPTAKE ENDOSULFAN SULETHAL EXPOSURE AMPHIBIANS CIENCIAS ATMOSFÉRICAS CIENCIAS DE LA TIERRA Y EL MEDIO AMBIENTE info:eu-repo/semantics/publishedVersion Agroecosystems are usually polluted with a wide variety of contaminants with pesticides being very frequently detected. Endosulfan, an organochlorine pesticide, has been shown to cause both lethal and sublethal effects on aquatic organisms such as amphibians and especially on its early developmental stages. In this context, the aim of this study was to evaluate the uptake of environmentally relevant concentrations of endosulfan and its correlation with differential sensitivity in the early development stages of the common South American toad, Rhinella arenarum. Embryos and larvae were exposed to sublethal concentrations of endosulfan for several periods of exposures. According to the developmental stage at which they were exposed, the uptake rate was different. Bioconcentration factors (BCFs) for embryos significantly decreased with exposure time and concentration (p < 0.05) reaching a BCF of ≤1679 for embryos at 96 h of exposure to 0.001 mg endosulfan L−1. BCFs for larvae significantly increased with exposure time (p < 0.05) obtaining a maximum of 40 at 504 h. In our previous study, we reported that embryos were less sensitive to the effects of endosulfan than larvae, which is in line with the main tendency of embryos to bioconcentrate endosulfan as observed in this study. Fil: Svartz, Gabriela Veronica. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina. Fil: Marino, Damian Jose Gabriel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina Fil: Ronco, Alicia Estela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina Fil: Perez Coll, Cristina Silvia. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina. 2015-07 info:eu-repo/semantics/article info:ar-repo/semantics/artículo Svartz, G. V.; Marino, D. J. G.; Ronco, A. E.; Perez Coll, C. S. (jul 2015). Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure; Springer; Archives of Environmental Contamination and Toxicology; 69 (1), 104-111 0090-4341 Archives of Environmental Contamination and Toxicology 2015 69(1) 104-111 https://ri.unsam.edu.ar/handle/123456789/979 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5) application/pdf pp. 104-111 application/pdf Springer Archives of Environmental Contamination and Toxicology, 2015 69(1): 104-111
institution	Universidad Nacional de General San Martín
institution_str	I-78
repository_str	R-216
collection	Repositorio Institucional de la UNSAM
language	Inglés
topic	CYPERMETHRIN DIFFERENTIAL UPTAKE ENDOSULFAN SULETHAL EXPOSURE AMPHIBIANS CIENCIAS ATMOSFÉRICAS CIENCIAS DE LA TIERRA Y EL MEDIO AMBIENTE
spellingShingle	CYPERMETHRIN DIFFERENTIAL UPTAKE ENDOSULFAN SULETHAL EXPOSURE AMPHIBIANS CIENCIAS ATMOSFÉRICAS CIENCIAS DE LA TIERRA Y EL MEDIO AMBIENTE Svartz, Gabriela Veronica Marino, Damian Jose Gabriel Ronco, Alicia Estela Perez Coll, Cristina Silvia Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure
topic_facet	CYPERMETHRIN DIFFERENTIAL UPTAKE ENDOSULFAN SULETHAL EXPOSURE AMPHIBIANS CIENCIAS ATMOSFÉRICAS CIENCIAS DE LA TIERRA Y EL MEDIO AMBIENTE
description	Agroecosystems are usually polluted with a wide variety of contaminants with pesticides being very frequently detected. Endosulfan, an organochlorine pesticide, has been shown to cause both lethal and sublethal effects on aquatic organisms such as amphibians and especially on its early developmental stages. In this context, the aim of this study was to evaluate the uptake of environmentally relevant concentrations of endosulfan and its correlation with differential sensitivity in the early development stages of the common South American toad, Rhinella arenarum. Embryos and larvae were exposed to sublethal concentrations of endosulfan for several periods of exposures. According to the developmental stage at which they were exposed, the uptake rate was different. Bioconcentration factors (BCFs) for embryos significantly decreased with exposure time and concentration (p < 0.05) reaching a BCF of ≤1679 for embryos at 96 h of exposure to 0.001 mg endosulfan L−1. BCFs for larvae significantly increased with exposure time (p < 0.05) obtaining a maximum of 40 at 504 h. In our previous study, we reported that embryos were less sensitive to the effects of endosulfan than larvae, which is in line with the main tendency of embryos to bioconcentrate endosulfan as observed in this study.
format	publishedVersion Artículo Artículo
author	Svartz, Gabriela Veronica Marino, Damian Jose Gabriel Ronco, Alicia Estela Perez Coll, Cristina Silvia
author_facet	Svartz, Gabriela Veronica Marino, Damian Jose Gabriel Ronco, Alicia Estela Perez Coll, Cristina Silvia
author_sort	Svartz, Gabriela Veronica
title	Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure
title_short	Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure
title_full	Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure
title_fullStr	Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure
title_full_unstemmed	Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure
title_sort	differential uptake of endosulfan in the south american toad under sublethal exposure
publisher	Springer
publishDate	2015
url	https://ri.unsam.edu.ar/handle/123456789/979
work_keys_str_mv	AT svartzgabrielaveronica differentialuptakeofendosulfaninthesouthamericantoadundersublethalexposure AT marinodamianjosegabriel differentialuptakeofendosulfaninthesouthamericantoadundersublethalexposure AT roncoaliciaestela differentialuptakeofendosulfaninthesouthamericantoadundersublethalexposure AT perezcollcristinasilvia differentialuptakeofendosulfaninthesouthamericantoadundersublethalexposure
_version_	1765722565089689600

Differential Uptake of Endosulfan in the South American Toad Under Sublethal Exposure

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