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Concentrations of pesticide residues in tissues of fish from Kolleru Lake in India
Author(s) -
Amaraneni S. R.,
Pillala R. R.
Publication year - 2001
Publication title -
environmental toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.813
H-Index - 77
eISSN - 1522-7278
pISSN - 1520-4081
DOI - 10.1002/tox.10016
Subject(s) - catla , dieldrin , pesticide , malathion , endosulfan , pesticide residue , chlorpyrifos , pollution , toxaphene , environmental science , ecotoxicology , environmental chemistry , lindane , endrin , toxicology , fish <actinopterygii> , biology , carp , fishery , ecology , chemistry
Kolleru Lake is the largest natural freshwater lake of Andhra Pradesh in India. It is situated between latitudes 16°32′ and 16°47′N and longitudes 81°05′ and 81°27′E. The use of pesticides for agricultural purposes is widespread in the Kolleru Lake region. The biological indicators like fish help in the studies of aquatic pollution by pesticides. Fish species Channa striata and Catla catla and water samples were collected from Kolleru Lake in each of three seasons over a period of three years. Fish samples were analyzed according to a modified method which is proposed for the gas chromatographic determination for the pesticides viz., α‐BHC, γ‐BHC, malathion, chloirpyrifos, isodrin, endosulfan, dieldrin, and p,p‐DDT. Water samples were analyzed for selected physico‐chemical parameters. The extraction efficiency for the selected pesticides is between 82.8% and 91.2%. The maximum concentrations of pesticide residues in Kolleru Lake fish on wet weight basis are 123.8 μg/g for α‐BHC, 98.7 μg/g for γ‐BHC, 2.5 μg/g for malathion, 88.6 μg/g for chlorpyrifos, 0.91 μg/g for isodrin, 76.5 μg/g for endosulfan, 1.98 μg/g for dieldrin, and 157.4 μg/g for p,p′‐DDT. These analyses were used to evaluate the baseline data and the pesticide pollution in the lake's ecosystem. © 2001 John Wiley & Sons, Inc. Environ Toxicol 16: 550–556, 2001