Chlorinated Pesticide in a Fish Farming Station in the Lake Maracaibo Basin

by Hender Urdaneta, Universidad del Zulia, Maracaibo, Venezuela,
Blanca Medina, Universidad del Zulia, Maracaibo, Venezuela,

Document Type: Proceeding Paper

Part of: Coastal Zone '93


The present evaluation of chlorinated pesticides is the result of the detection of tumors, hepatic and renal necrosis and skeletal anomalies in species of fish cultivated in artificial lagoons in the Lake Maracaibo Basin, specifically, in the Municipality of Paez, State of Zulia. Water, sediment and fish samples were taken from randomly selected lagoons. Using gas-liquid chromatography (GLC), concentrations of twelve organochlorine compounds were detected in the lagoon water and sediments in July 1987-1988 and eleven in fish between January 1991 and July 1992: a.BHC, g-BHC (Lindane), Heptachlor, β-BHC, Aldrin, Endosulfan, DDE, Dieldrin, TDE, Endrin, DDT and Metoxychlor. These toxic compounds may be an important factor in causing the above pathological problems.

Subject Headings: Pesticides | Fish and fishery management | Chlorine | Agriculture | Lakes | Basins | Lagoons | Water pollution | Venezuela | South America

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