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dc.contributor.author
Svartz, Gabriela Veronica
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dc.contributor.author
Aronzon, Carolina Mariel
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dc.contributor.author
Perez Coll, Cristina Silvia
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dc.date.available
2020-05-29T20:41:18Z
dc.date.issued
2016-02
dc.identifier.citation
Svartz, Gabriela Veronica; Aronzon, Carolina Mariel; Perez Coll, Cristina Silvia; Combined endosulfan and cypermethrin-induced toxicity to embryo-larval development of Rhinella arenarum; Taylor & Francis; Journal Of Environmental Science And Health Part A-toxic/hazardous Substances & Environmental Engineering; 79; 5; 2-2016; 197-209
dc.identifier.issn
1093-4529
dc.identifier.uri
http://hdl.handle.net/11336/106302
dc.description.abstract
The combined effects of two widely used pesticides, endosulfan and cypermethrin, on survival of embryo–larval development of the South American toad (Rhinella arenarum) were examined. The toxicity bioassays were performed according to the AMPHITOX test. Embryos and larvae were exposed to mixtures of these pesticides at equitoxic ratios from acute or chronic exposure to evaluate interaction effects. The results were analyzed using both Marking’s additive index and combination index (CI)–isobologram methods. Acute (96-h) and intermediate (168-h) toxicity of endosulfan–cypermethrin mixtures remained almost constant for larvae and embryos, but when exposure duration was increased, there was a significant elevation in toxicity, obtaining chronic (240-h) no-observed-effect concentrations (NOEC) values of 0.045 and 0.16 mg/L for embryos and larvae, respectively. These are environmentally relevant concentrations that reflect a realistic risk of this pesticide mixture to this native amphibian species. The toxicity increment with the exposure duration was coincident with the central nervous system development on embryos reaching the larval period, the main target organ of these pesticides. The interactions of the pesticide mixtures at acute and chronic exposure were antagonistic for embryo development (CI > 1), and additive (CI = 1) for larvae, while chronic exposure interactions were synergistic (CI < 1) for both developmental periods. Data indicated that endosulfan–cypermethrin mixtures resulted in different interaction types depending on duration and developmental stage exposed. As a general pattern and considering conditions of overall developmental period and chronic exposure, this pesticide mixture usually applied in Argentine crop fields is synergistic with respect to toxicity for this native amphibian species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MIXTURE TOXICITY
dc.subject
ENDOSULFAN
dc.subject
CYPERMETHRIN
dc.subject
AMPHIBIAN DEVELOPMENT
dc.subject.classification
Ciencias Medioambientales
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Combined endosulfan and cypermethrin-induced toxicity to embryo-larval development of Rhinella arenarum
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-05-22T17:51:55Z
dc.journal.volume
79
dc.journal.number
5
dc.journal.pagination
197-209
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Svartz, Gabriela Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto de Investigación en Ingeniería Ambiental; Argentina
dc.description.fil
Fil: Aronzon, Carolina Mariel. Universidad Nacional de San Martín. Instituto de Investigación en Ingeniería Ambiental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Perez Coll, Cristina Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto de Investigación en Ingeniería Ambiental; Argentina
dc.journal.title
Journal Of Environmental Science And Health Part A-toxic/hazardous Substances & Environmental Engineering
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/15287394.2015.1126211
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/15287394.2015.1126211
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