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dc.contributor.author
Stoker, Cora
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Zayas, Marcelo Alejandro
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Ferreira, M. A.
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Durando, Milena de Lourdes
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Galoppo, Germán Hugo
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Rodriguez, Horacio Adolfo
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Repetti, María Rosa
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Beldomenico, Horacio Ramon
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Caldini, E. G.
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Luque, Enrique Hugo
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Muñoz de Toro, Monica Milagros
dc.date.available
2017-09-01T19:37:51Z
dc.date.issued
2013-09
dc.identifier.citation
Stoker, Cora; Zayas, Marcelo Alejandro; Ferreira, M. A.; Durando, Milena de Lourdes; Galoppo, Germán Hugo; et al.; The eggshell features and clutch viability of the broad-snouted caiman (Caiman latirostris) are associated with the egg burden of organochlorine compounds; Elsevier; Ecotoxicology and Environmental Safety; 98; 9-2013; 191-195
dc.identifier.issn
0147-6513
dc.identifier.uri
http://hdl.handle.net/11336/23480
dc.description.abstract
Organochlorine compounds (OCCs) are toxic and have been identified as endocrine-disrupting chemicals (EDCs). The broad-snouted Caiman (Caiman latirostris) is an oviparous species widely distributed in South America with potential to accumulate OCCs. The eggshell is formed during passage of the eggs through the oviduct. Since the oviduct is a target of hormone actions, exposure to OCCs could modify eggshell quality, thus affecting clutch viability. Eight clutches were collected from wetlands of Parana River tributaries, in north-eastern Argentina. Two to four eggs per clutch were used to establish the burden of OCCs, eggshell thickness and eggshell porosity. The remaining eggs were incubated in controlled conditions. Ten days after hatching, hatchling survival was assessed. Organochlorine pesticide residues (OCPs) were found in all clutches, while polychlorinated biphenyls (PCBs) were present in all but one clutch. The principal contributors to the OCP burden were members of the DDT family and oxychlordane. Eggshell thickness was 400.976.0 μm and, unexpectedly, no association between eggshell thickness and the OCC burden was found. The number of pores in the outer surface was 25.374.3 pores/cm2 . A significant inverse correlation between porosity and OCC burden was found (Pearson r¼ 0.81, p¼ 0.01). Furthermore, a decrease in caiman survival with decreased pore density was observed (Pearson r¼ 0.73, p¼ 0.04). Our findings highlight another potential negative impact of current and past use of OCCs on wildlife species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Organochlorine Pesticides
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Pcbs
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Ddt
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Eggshell Porosity
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Endocrine Disruptors
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Wildlife
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Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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Oceanografía, Hidrología, Recursos Hídricos
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The eggshell features and clutch viability of the broad-snouted caiman (Caiman latirostris) are associated with the egg burden of organochlorine compounds
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-08-24T18:48:49Z
dc.journal.volume
98
dc.journal.pagination
191-195
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Stoker, Cora. Universidad Nacional del Litoral. Facultad de Bioquimica y Ciencias Biologicas. Departamento de Fisiologia. Laboratorio de Endocrinologia y Tumores Hormonodependientes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.description.fil
Fil: Zayas, Marcelo Alejandro. Universidad Nacional del Litoral. Facultad de Bioquimica y Ciencias Biologicas. Departamento de Fisiologia. Laboratorio de Endocrinologia y Tumores Hormonodependientes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
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Fil: Ferreira, M. A.. Universidade de Sao Paulo; Brasil
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Fil: Durando, Milena de Lourdes. Universidad Nacional del Litoral. Facultad de Bioquimica y Ciencias Biologicas. Departamento de Fisiologia. Laboratorio de Endocrinologia y Tumores Hormonodependientes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.description.fil
Fil: Galoppo, Germán Hugo. Universidad Nacional del Litoral. Facultad de Bioquimica y Ciencias Biologicas. Departamento de Fisiologia. Laboratorio de Endocrinologia y Tumores Hormonodependientes; Argentina
dc.description.fil
Fil: Rodriguez, Horacio Adolfo. Universidad Nacional del Litoral. Facultad de Bioquimica y Ciencias Biologicas. Departamento de Fisiologia. Laboratorio de Endocrinologia y Tumores Hormonodependientes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
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Fil: Repetti, María Rosa. Universidad Nacional del Litoral; Argentina
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Fil: Beldomenico, Horacio Ramon. Universidad Nacional del Litoral; Argentina
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Fil: Caldini, E. G.. Universidade de Sao Paulo; Brasil. National Council for Scientific and Technological Development; Brasil
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Fil: Luque, Enrique Hugo. Universidad Nacional del Litoral. Facultad de Bioquimica y Ciencias Biologicas. Departamento de Fisiologia. Laboratorio de Endocrinologia y Tumores Hormonodependientes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
dc.description.fil
Fil: Muñoz de Toro, Monica Milagros. Universidad Nacional del Litoral. Facultad de Bioquimica y Ciencias Biologicas. Departamento de Fisiologia. Laboratorio de Endocrinologia y Tumores Hormonodependientes; Argentina
dc.journal.title
Ecotoxicology and Environmental Safety
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ecoenv.2013.08.022
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0147651313003667
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