Heavy metals (Cd, Pb and Ni) in fish species commercially important from Magdalena river, Tolima tract, Colombia
-
-
[1] Universidad del Tolima
Universidad del Tolima
Colombia
-
- Localización: Tumbaga, ISSN-e 1909-4841, Vol. 2, Nº. 7, 2012
- Idioma: inglés
- Enlaces
-
Resumen
Water quality of the Magdalena River, main waterway of Colombia, has been severely damaged by the use of heavy metals from anthropogenic activity. Two commerciall important fish Prochilodus magdalenae and Pimelodus blochii, were captured in four of the most important fishing municipalities in Tolima-Colombia, to determine the levels of cadmium, lead (Atomic absorption spectroscopy) and nickel (colorimetric) in the muscle, gill and liver. Pimelodus blochii is the one who bioaccumulates these chemical pollutants in major quantity, with concentrations of Cadmium from 0.009 ± 0.001 to 0.340 ± 0.402; lead from 0 to 8.737 ± 1.299 and Nickel from 2.26 ± 1.59 to 31.69 ± 10.26 mg/kg; the port of Flandes stands out as one of the areas of major ecological impact. There was correlation between cadmium concentrationsaccumulated and the animal organ which acts as a metal reservoir, showing elevated levels for the liver tissue.
