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Shedding patterns of Schistosoma mansoni and Ribeiroia marini cercariae from a mixed infection of Biomphalaria glabrata

Published online by Cambridge University Press:  05 June 2009

André Théron  and
Hélène Moné
André Théron
Affiliation:
Département de Biologie Animale, U.A. no 698, C.N.R.S., Université, Avenue de Villeneuve, 66025 Perpignan Cedex, France.
Hélène Moné
Affiliation:
Département de Biologie Animale, U.A. no 698, C.N.R.S., Université, Avenue de Villeneuve, 66025 Perpignan Cedex, France.
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Abstract

When the snail Biomphalaria glabrata is doubly infected by two species of trematode. Schistosoma mansoni and Ribeiroia marini, each species keeps its own cercarial shedding pattern. Emergence of S. mansoni cercariae occurs during the photophase while the R. marini cercariae are shed during the night. These results demonstrate the absence of interference between the machanisms responsible for the cercarial shedding of each species. The only difference noted concerns a two-hour shift in the peak emergence of S. mansoni as a consequence of the antagonism between the two parasites.

Keywords

Schistosoma mansoniRibeiroia mariniBimphalaria glabratacercarial sheddingantagonism
Type
Research Papers
Information
Journal of Helminthology , Volume 60 , Issue 4 , December 1986 , pp. 255 - 259
Copyright
Copyright © Cambridge University Press 1986

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References

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