Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 72, Issue 4, Pages 1242-1248Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2008.10.011
Keywords
Fish; Trace metals; Kolleru Lake; Plankton; Sediment; Water
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Funding
- Department of Zoology, Visvabharati University
- Santiniketan and Central Institute of Fresh Water Aquaculture, Bhubaneswar
- Indian Council of Agricultural Research, New Delhi, India
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The distributions of trace metals (Pb, Cd, Cr Mn, Zn and Cu) in water, sediment, plankton and four fish species (Labeo rohita, Carlo catla, Pangasius pangasius and Cirrhinus mrigala) from fishponds of Kolleru Lake, India were determined using atomic absorption spectroscopy. The concentrations of lead (0.01-0.03 mg/l) and copper (0.01-0.08 mg/l) in water and cadmium (3.0-9.0 mg/kg), chromium (47-211 mg/kg) and copper (10-64 mg/kg) in sediment were above the EPA threshold effects level (TEL) and are of biological concern. The abundance orders of metals were Mn>Cd>Cu>Pb in water, Mn>Cr>Zn>Cu>Pb>Cd in sediment and Cu>Mn>Cr>Zn>Pb>Cd in plankton. The concentrations of the metals in the muscles of these four fish species apparently decrease in the order Zn>Cu>Cr>Mn = Ph>Cd and were well below WHO permissible limits that were safe for human consumption. (c) 2008 Elsevier Inc. All rights reserved.
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