African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12479

Full Length Research Paper

Histopathology of the gill and liver tissues of the African catfish Clarias gariepinus exposed to lead

Olojo, E. A. A. 1*, Olurin, K. B., 1mbaka, G. And Oluwemimo, A. D.1
  1Department of Biological Sciences, Olabisi Onabanjo University, P. M. B. 2002, Ago-Iwoye, Ogun State, Nigeria. 2Department of Anatomy, College of Basic Medical Sciences, Olabisi Onabanjo University, P.M.B. 2002, Ago-Iwoye, Ogun State, Nigeria.
Email: [email protected]

  •  Accepted: 21 July 2004
  •  Published: 31 January 2005

Abstract

 

An investigation on the effect of the heavy metal, lead (Pb) on the gill and liver of the African catfish Clarias gariepinus was carried out in the laboratory. One hundred and sixty (160) fingerlings of the fish were exposed to continuous exposure to sub-lethal concentrations (0.006 mg/l and 0.008 mg/l) of lead for a period of three weeks. The liver and gill of fish were removed every 9 days for histological examination. The results showed that the degree of distortion of the gills and liver was proportional to the exposure periods and concentration of the metals was found to be dose and time dependent.

 

Key words: Lead, Clarias gariepinus, histopathology, gill, liver.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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