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Revista MVZ Córdoba
Article . 2011 . Peer-reviewed
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Revista MVZ Córdoba
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Compuestos organoclorados residuales en dos especies ícticas de la Ciénaga Grande del Bajo Sinú, Córdoba, Colombia

Authors: Lans C, Edineldo; Díaz P, Basilio; Paez M, Manuel;

Compuestos organoclorados residuales en dos especies ícticas de la Ciénaga Grande del Bajo Sinú, Córdoba, Colombia

Abstract

Objetivo. Determinación de niveles de pesticidas organoclorados (POCs) en especies ícticas, procedentes de la Ciénaga Grande del Bajo Sinú, Materiales y métodos. Se usó un cromatógrafo de gases (Perkin Elmer Autosystem XL) con detector captura de electrones y columna capilar 5% de difenil y 95% de dimetilpolisiloxano, de 30 m, 0.25 mm de diámetro interno y 0.25 μm de espesor de película. Las especies estudiadas fueron: bocachico (Prochilodus magdalenae) y moncholo (Hoplias malabaricus), durante las estaciones seca y húmeda. Resultados. El porcentaje de recuperación de los pesticidas determinados se registró entre 80 y 84%, mientras que los límites de detección y cuanficación fueron 0.02 a 0.18 ng/g y 0.2 a 1.8 ng/g respectivamente. La desviación estándar relativa permaneció por debajo del 7% en todos los casos. De los pesticidas organoclorados investigados, en las dos especies se detectaron el a-clordano, endrín y aldrín. Se observó que a medida que aumenta el peso y el tamaño del pez, aumenta la concentración de los plaguicidas en una de las especies. Los niveles de concentración de los POCs estuvieron en el intervalo de 0.35-3.75 y 0.48-5.49 ng/g para el moncholo (Hoplias malabaricus) and bocachico (Prochilodus magdalenae) respectivamente. Conclusiones. La frecuencia de aparición de POCs y los niveles detectados en las especies podrían ser consecuencia de actividades antropogénicas realizadas en los alrededores de la ciénaga. La correlación entre las medidas biométricas y la concentración depende de la especie íctica. Las concentraciones encontradas en las especies estudiadas, Hoplias malabaricus y Prochilodus magdalenae no representan toxicidad letal inmediata

Country
Colombia
Keywords

análisis, analysis, Peces, Fishes, toxicity, toxicidad, pesticides, Fishes; analysis; pesticides; toxicity., toxicity., pesticidas

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    influence
    This indicator 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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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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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!
5
Average
Average
Average
Green
gold