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A study on snail location by Fasciola hepatica using radioisotopically labelled miracidia

Published online by Cambridge University Press:  06 April 2009

Peter Nansen ,
Flemming Frandsen  and
Niels Ørnbjerg Christensen
Peter Nansen
Affiliation:
The Danish Agricultural and Veterinary Research Council, Parasitological Research Group, Royal Veterinary and Agricultural University, Bülowsvej 13, DK-1870 Copenhagen V, Denmark
Flemming Frandsen
Affiliation:
Danish Bilharziasis Laboratory, Jwgersborg Allé 1 D, DK-2920 Charlottenlund, Denmark
Niels Ørnbjerg Christensen
Affiliation:
Nordisk Kollegium, Strandboulevarden 32, DK-2100 Copenhagen Ø, Denmark
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Extract

A number of common freshwater molluscs were exposed to Fasciola hepatica miracidia labelled in vivo with radioselenium. Radioactivity was rapidly incorporated in all lymnaeid species tested (L. auricularia, L. columella, L. glabra, L. natalensis, L. palustris, L. pereger, L. stagnalis, L. tomentosa and L. truncatula) whereas no radioactivity could be demonstrated in non-lymnaeid pulmonate species (Aplexa hypnorum, Physa acuta, Physafontinalis, Anisus vortex, Gyraulus albus and Planorbis planorbis) or in the prosobranchs Valvata cristata and Valvata piscinalis. However, the prosobranchs Bithynia leachii, Bithynia tentaculata and Potamopyrgus jenkinsi showed a slow but significant uptake of radioactivity which was presumably explained by uptake of labelled miracidia through a ‘filter-feeding] mechanism. Sphaerium corneum, a true filter-feeder, showed a similar course of uptake of radioactivity.

Type
Research Article
Information
Parasitology , Volume 72 , Issue 2 , April 1976 , pp. 163 - 171
Copyright
Copyright © Cambridge University Press 1976

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