Hierro y cobre en Plagioscion squamosissimus (Piscis: Sciaenidae) del río Orinoco, Venezuela / Iron and copper in Plagioscion squamosissimus (Piscis: Sciaenidae) from the Orinoco river, Venezuela
Rev. biol. trop
;
48(Supl.1): 207-213, dic. 2000.
Artículo
en Español
| LILACS
| ID: lil-503260
ABSTRACT
Bauxite explotation of the Orinoco River in recent years is an important source of heavy metals discharge in the ecosystem, changing the natural biochemical flow of these elements and their concentrations in water, sediment and organisms. Iron and copper concentrations were measured in the fish Plagioscion squamosissimus in the Orinoco river, by sampling the fish population for three months (September-November 1998) in the main channel of the middle Orinoco (07 degrees 38' 21.2[quot ] N; 66 degrees 19' 10.9" W) and in Castillero lagoon (7 degrees 39' 09" N; 66 degrees 09' 00" W) with 2 and 4 cm mesh sizes. The internal organs of 30 fishes per month and site were stove-dried at 80 degrees C, pulverized and dried in disecator for 30 min to use as indicators with the acid digestion method for predicting the effect of heavy metals. We found relatively high values of iron and copper concentrations in fishes of the lagoon, and high seasonal variations in the iron concentration.
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Índice:
LILACS (Américas)
Asunto principal:
Contaminación Química del Agua
/
Monitoreo del Ambiente
/
Cobre
/
Ríos
/
Peces
/
Hierro
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
País/Región como asunto:
America del Sur
/
Venezuela
Idioma:
Español
Revista:
Rev. biol. trop
Asunto de la revista:
Biologia
/
Medicina Tropical
Año:
2000
Tipo del documento:
Artículo
País de afiliación:
Venezuela
Institución/País de afiliación:
Universidad de Oriente/VE
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