Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos

We determined the Hg content of blood, placenta and umbilical cord of 20 pregnant females of the viviparous Pacific sharpnose shark, Rhizoprionodon longurio and of the livers of the embryos contained in their right and left uterus, aiming to provide information on the amount of this metal offloaded...

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Autores principales:	Frías-Espericueta,Martín G, Zamora-Sarabia,Francia K.G, Márquez-Farías,J. Fernando, Osuna-López,J. Isidro, Ruelas-Inzunza,Jorge, Voltolina,Domenico
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2015
Materias:	mercury maternal offloading shark embryos blood placenta umbilical cord
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300014
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spelling	oai:scielo:S0718-560X20150003000142015-09-29Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryosFrías-Espericueta,Martín GZamora-Sarabia,Francia K.GMárquez-Farías,J. FernandoOsuna-López,J. IsidroRuelas-Inzunza,JorgeVoltolina,Domenico mercury maternal offloading shark embryos blood placenta umbilical cord We determined the Hg content of blood, placenta and umbilical cord of 20 pregnant females of the viviparous Pacific sharpnose shark, Rhizoprionodon longurio and of the livers of the embryos contained in their right and left uterus, aiming to provide information on the amount of this metal offloaded during pregnancy by the mother to the embryos. Hg content varied by close or higher than one order of magnitude in all tissues and showed the decreasing trend: maternal blood > umbilical cord > placenta > embryonic livers, with placenta and embryonic livers significantly lower than maternal blood. There were highly significant correlations (P < 0.001) between the Hg content of maternal blood, cord, and placenta. Those between embryonic livers and maternal blood, cord and placenta were not significant (P > 0.05). The results suggest transplacental Hg transfer and that the liver is not the main site of Hg accumulation.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.43 n.3 20152015-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300014en10.3856/vol43-issue3-fulltext-14
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	mercury maternal offloading shark embryos blood placenta umbilical cord
spellingShingle	mercury maternal offloading shark embryos blood placenta umbilical cord Frías-Espericueta,Martín G Zamora-Sarabia,Francia K.G Márquez-Farías,J. Fernando Osuna-López,J. Isidro Ruelas-Inzunza,Jorge Voltolina,Domenico Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos
description	We determined the Hg content of blood, placenta and umbilical cord of 20 pregnant females of the viviparous Pacific sharpnose shark, Rhizoprionodon longurio and of the livers of the embryos contained in their right and left uterus, aiming to provide information on the amount of this metal offloaded during pregnancy by the mother to the embryos. Hg content varied by close or higher than one order of magnitude in all tissues and showed the decreasing trend: maternal blood > umbilical cord > placenta > embryonic livers, with placenta and embryonic livers significantly lower than maternal blood. There were highly significant correlations (P < 0.001) between the Hg content of maternal blood, cord, and placenta. Those between embryonic livers and maternal blood, cord and placenta were not significant (P > 0.05). The results suggest transplacental Hg transfer and that the liver is not the main site of Hg accumulation.
author	Frías-Espericueta,Martín G Zamora-Sarabia,Francia K.G Márquez-Farías,J. Fernando Osuna-López,J. Isidro Ruelas-Inzunza,Jorge Voltolina,Domenico
author_facet	Frías-Espericueta,Martín G Zamora-Sarabia,Francia K.G Márquez-Farías,J. Fernando Osuna-López,J. Isidro Ruelas-Inzunza,Jorge Voltolina,Domenico
author_sort	Frías-Espericueta,Martín G
title	Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos
title_short	Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos
title_full	Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos
title_fullStr	Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos
title_full_unstemmed	Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos
title_sort	total mercury in female pacific sharpnose sharks rhizoprionodon longurio and their embryos
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000300014
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Total mercury in female Pacific sharpnose sharks Rhizoprionodon longurio and their embryos

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