Journal of
Cell and Animal Biology

  • Abbreviation: J. Cell Anim. Biol.
  • Language: English
  • ISSN: 1996-0867
  • DOI: 10.5897/JCAB
  • Start Year: 2007
  • Published Articles: 261

Full Length Research Paper

Bioconcentration of metals in the body muscle and gut of Clarias gariepinus exposed to sublethal concentrations of soap and detergent effluent

T. A. Ayandiran*, O. O. Fawole, S. O. Adewoye and M. A. Ogundiran
Department of Pure and Applied Biology, Ladoke Akintola University of Technology, P. M. B. 4000, Ogbomoso, Oyo State, Nigeria.
Email: [email protected]

  •  Accepted: 25 June 2009
  •  Published: 31 August 2009


The toxicity of sublethal concentrations of effluents from a soap and detergent industry were investigated on African catfish Clarias gariepinus using a renewable static bioassay. The trend of bioconcentration of metals in the muscle and gut of the test organisms differs significantly (p < 0.05) and it followed the order, gut > muscle. The result revealed that the muscle had the least concentration of manganese at 0.1 x 10-3 mg/kg and 10.7 x 10-3 mg/kg recorded for zinc as the highest. While the highest iron concentration of 15.80 x 10-3 mg/kg was recorded in the gut tissues of C. gariepinus, but mercury had the least concentration of 1.00 x 10-3 mg/ kg. It was revealed that fish can bioaccumulate heavy metals from a polluted environment, which may result in impairment of natural population size; thus consumption of fish from such polluted environment should be discouraged.


Key words: Bioconcentration, Clarias gariepinus, effluent, toxicity.