Interaction between Biomphalaria pfeifferi, the snail intermediate host of Schistosoma mansoni, and indoplanobis exustus, a possible competitor snail

  • P U Okere Department of Biotechnology, Federal University of Technology, Owerri, Nigeria.
  • A B Odaibo Department of Zoology, University of Ibadan, Nigeria
Keywords: Indoplanobis exustus, Biomphalaria pfeifferi, Schistosoma mansoni, fecundity, growth rate


Biological control of snail intermediate host of human schistosome parasites has been suggested. In this study, the effect of Indoplanobis exustus a planorbid snail and possible competitor snail of Biomphalaria pfeifferi on the fecundity and growth rate of the later was evaluated. The results showed a significant difference in the growth rates and fecundity of I. exustus and B. pfeifferi. Maintaining the snails together, the fecundity and growth rate of B pfeifferi were greatly reduced. There was direct relationship between fecundity and growth rate. I. exustus could therefore be a control agent of B. pfeifferi under similar prevailing condition.

African Journal of Biotechnology Vol. 4 (7), pp. 676-678, 2005

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