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Ecosistemas
Article . 2004
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Exposición de cetáceos a contaminantes ambientales con actividad hormonal en el Atlántico

Authors: M. Carballo; S. Aguayo; F. Esperón; A. Fernández; A. De la Torre; E. De la Peña; M. J. Muñoz;

Exposición de cetáceos a contaminantes ambientales con actividad hormonal en el Atlántico

Abstract

El objetivo de este trabajo fue determinar los niveles de varios compuestos con actividad hormonal en mamíferos marinos residentes en las Islas Canarias. Se tomaron muestras del banco de tejidos de cetáceos de Las Palmas, que recoge animales varados en este archipiélago desde el año 1993. Se estudiaron delfín mular (Tursiops truncatus, n=12), calderón tropical (Globicephala macrorhynchus, n=6) y cachalote (Physeter macrocephalus, n=7). Se analizaron compuestos clorados (pesticidas clorados y PCBs) en grasa hipodérmica (blubber), y compuestos no clorados (compuestos organoestánnicos y metales pesados -As, Cd, Pb y Hg-) en hígado. Los compuestos que aparecieron en mayor concentración fueron los PCBs, destacando el congénere PCB 153, y los DDTs, siendo pp-DDE el metabolito mayoritario. El clordano también fue detectado en la mayoría de los animales, aunque a concentraciones bajas. Los compuestos orgánicos de estaños se detectaron a niveles bajos, fundamentalmente en delfines, siendo dibutilestaño el principal metabolito. Dentro de los metales pesados destacaban los altos niveles de mercurio, similares a los encontrados en el Mar Mediterráneo. El resto de los elementos se situaban en un rango bajo o medio respecto a los encontrados en otras áreas geográficas.

6 paginas y 3 figuras

Peer reviewed

Keywords

Environmental sciences, Contaminantes, Actividad hormonal, Cetáceos, GE1-350, Contaminantes ambientales, Atlántico, Mamíferos marinos, Canarias

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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