Distributions of metals in the food web of fishponds of Kolleru Lake, India

Ecotoxicol Environ Saf. 2009 May;72(4):1242-8. doi: 10.1016/j.ecoenv.2008.10.011. Epub 2008 Dec 12.

Abstract

The distributions of trace metals (Pb, Cd, Cr Mn, Zn and Cu) in water, sediment, plankton and four fish species (Labeo rohita, Catla catla, Pangasius pangasius and Cirrhinus mrigala) from fishponds of Kolleru Lake, India were determined using atomic absorption spectroscopy. The concentrations of lead (0.01-0.03mg/l) and copper (0.01-0.08mg/l) in water and cadmium (3.0-9.0mg/kg), chromium (47-211mg/kg) and copper (10-64mg/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=Pb>Cd and were well below WHO permissible limits that were safe for human consumption.

MeSH terms

  • Animals
  • Environmental Monitoring
  • Fishes / metabolism*
  • Food Chain*
  • Fresh Water / analysis*
  • Geologic Sediments / analysis*
  • India
  • Metals / analysis*
  • Metals / metabolism
  • Metals, Heavy / analysis
  • Metals, Heavy / metabolism
  • Plankton / chemistry*
  • Spectrophotometry, Atomic
  • Tissue Distribution
  • Trace Elements / analysis
  • Water Pollutants, Chemical / analysis*
  • Water Pollutants, Chemical / metabolism

Substances

  • Metals
  • Metals, Heavy
  • Trace Elements
  • Water Pollutants, Chemical