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DIGITAL.CSIC
Other ORP type . 2014 . Peer-reviewed
Data sources: DIGITAL.CSIC
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Presencia de DDT, sus derivados, y bifenilos policlorados (PCB) en sardina (Sardina pilchardus) y jurel (Trachurus trachurus) del NW de España

Authors: Fernández-Reiriz, María José; Franco, José Mariano;

Presencia de DDT, sus derivados, y bifenilos policlorados (PCB) en sardina (Sardina pilchardus) y jurel (Trachurus trachurus) del NW de España

Abstract

[EN] Levels of DDT and PCB were determined in sardine and horse mackerel sampled in the fish market of Vigo and caught in the ria. The mean concentrations of total DDT were 0.11 ppm and 0.055 ppm in whole sardine and dorsal muscle respectively; 0.055 ppm in whole horse mackerel and 0.026 ppm in horse mackerel's dorsal muscle. The average concentrations of PCB were 0.38 ppm; 0.16 ppm; 0.27 ppm and 0.19 ppm in whole sardine and horse mackerel, and dorsal muscle of both species, respectively. Residues of total DDT in both species did not increase with the length class (fig. 1), but the percentage of p,p'-DDT decrease in favor of p,p'-DDE in the greater length class (fig. 2). It is also observed that the levels of PCB decrease with the length increase, in the sardine; while in the horse mackerel it is opposite (fig. 1). It is not possible to found a relation between increase in the percentage of oil and concentration of organochlorine compounds (figs. 3 and 4), this may indicate either rapid residue elimination, or a recruitment of fish from uncontaminated areas

[ES] La información sobre el contenido en compuestos organoclorados de tipo persistente en especies marinas es escasa. Este tema merece más atención, aunque solamente sea porque estas especies constituyen una importante fuente de alimentos, directa o indirectamente. Sin embargo, lo interesante sería conocer las condiciones fisicoquímicas del medio, así como la fisiología de los organismos para investigar el modo de acumu- lación, transferencia y eliminación de estos compuestos. De material procedente de la zona Noroeste de la península Ibérica existen ya algunos datos (Franco, 1972 y 1974) y en el presente trabajo pretendemos dar una visión más amplia de la evolución del contenido de compuestos organoclorados en estas dos especies a lo largo de un ciclo anual, relacionando los datos que hemos obtenido con la biología de la sardina y jurel. [...]

13 páginas, 4 figuras, 2 cuadros

Peer reviewed

Country
Spain
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selected citations
These citations are derived from selected sources.
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).
BIP!Citations provided by BIP!
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.
BIP!Impulse provided by BIP!
0
Average
Average
Average