OBSERVATIONS ON THE POPULATION-DYNAMICS OF SNAIL HOSTS FOR SCHISTOSOMES IN THE DELTA OF THE SENEGAL RIVER BASIN

被引:16
作者
BELOT, J
GEERTS, S
DIOUF, M
机构
[1] INST TROP MED,NATL STR 155,B-2000 ANTWERP,BELGIUM
[2] AGCD,SCH VET,BELGIAN COOPERAT,DAKAR,SENEGAMBIA
[3] DEPT PARASITOL,DAKAR,SENEGAMBIA
[4] VET INSPECT,FATICK,SENEGAMBIA
关键词
D O I
10.1093/mollus/59.1.7
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Between 1987 and 1990, snail surveys were carried out in the Senegal River Basin at Lampsar, in a natural 'marigot', and at Richard Toll, in an irrigation canal. Lymnaea natalensis, Bulinus guernei* and B. forskalii, were regularly found at both the sites. Bulinus globosus/jousseaumei and B. umbilicatus were only present at Lampsar. A decrease of the snail density was observed during the rainy season at Lampsar. The recent appearance of Biomphalaria pfeifferi at Richard Toll is discussed. The data show that adult B. pfeifferi are present in the main irrigation canal all through the year. Consequently parasite transmission will be possible throughout the year as well.
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页码:7 / 13
页数:7
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