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The effect of parasitism by the trematode Cryptocotyle lingua (Creplin) on digestive efficiency in the snail host, Littorina saxatilis (Olivi)

Published online by Cambridge University Press:  06 April 2009

D. S. Davis  and
J. Farley
D. S. Davis
Affiliation:
Biology Department, Dalhousie University, Halifax, Nova Scotia, Canada
J. Farley
Affiliation:
Biology Department, Dalhousie University, Halifax, Nova Scotia, Canada
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Extract

The efficiency of assimilation of carbon and nitrogen by Littorina saxatilis, as calculated from the carbon and nitrogen content of food and faeces, showed that the efficiency of snails infected with rediae of Cryptocotyle lingua did not differ significantly from that in non-infected snails.

Similarly, the rate of ingestion and the rate of assimilation of infected snails did not differ significantly from those of non-infected snails.

It is suggested that this harmonious relationship reflects the longterm strategy of Cryptocotyle lingua infections.

Type
Research Article
Information
Parasitology , Volume 66 , Issue 1 , February 1973 , pp. 191 - 197
Copyright
Copyright © Cambridge University Press 1973

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