Authors: Joubert PH De Kock KN
Publish Date: 1989/03/01
Volume: 83, Issue: 2, Pages: 229-232
Abstract
PH Joubert KN De Kock A laboratory study on the possible use of Helisoma duryi in the biological control of Bulinus africanus intermediate host of Schistosoma haematobium Transactions of The Royal Society of Tropical Medicine and Hygiene Volume 83 Issue 2 MarchApril 1989 Pages 229–232 https//doiorg/101016/0035920389906561In order to evaluate the possible use of Helisoma duryi as biological competitor of Bulinus africanus lifetables were compiled for these two snail species maintained either in the presence of each other or separately Population parameters were calculated from these lifetables and it was found that H duryi had a higher innate capacity of increase net reproduction rate and growth rate as well as a longer lifespan and reproductive period than Bu africanus Furthermore the biological potential of Bu africanus was found to be adversely affected in the presence of H duryi It was concluded that the latter might be capable of replacing Bu africanus in certain freshwater habitats and that field trials ought to be undertaken in South Africa
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