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Toxicidad aguda del sulfato de cobre en postlarvas de camarón cryphiops caementarius

Authors: Mendoza-Rodríguez, R.;

Toxicidad aguda del sulfato de cobre en postlarvas de camarón cryphiops caementarius

Abstract

Se evaluó la toxicidad del sulfato de cobre (CuSO4.5H2O) en postlarvas de camarón Cryphiops caementarius mediante pruebas de toxicidad aguda, con el objetivo de determinar las concentraciones letales (LC1, LC50), concentración efectiva (EC50). Se propusieron concentraciones de 0,6; 1,0; 1,9; 3,1; 4,0; 7,8 y 12,5 mg/l y el control libre de sustancia tóxica en agua dulce. Se utilizaron 240 postlarvas con tres réplicas de 10 postlarvas por tratamiento. Los resultados de la prueba de toxicidad aguda reflejaron que este estadio es muy sensible al sulfato de cobre encontrando valores de LC1, LC50 y EC50 para 24 h: 1,41; 3,875 y 3,97 mg/l, para 48 h: 0,828; 3,399 y 3,37 mg/l, para 72 h: 0,212; 2,55 y 2,96 mg/l y para 96 h: 0,174; 2,054 y 2,28 mg/l CuSO4.5H2O. La sobrevivencia y la actividad natatoria fueron afectadas por el sulfato de cobre, disminuyendo a medida que aumenta la concentración, encontrándose que las concentraciones peligrosas y nocivas fueron 7,8 y 12,5 mg/l (90 y 100% de mortalidad antes de 24 h respectivamente); las concentraciones de 0,6 y 1,0 mg/l fueron tolerables alcanzando 100% de sobrevivencia para 48 h.

Related Organizations
Keywords

Survival, Actividad natatoria, Swimming activity, Sobrevivencia

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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!
2
Average
Average
Average
Green
gold