Distribution of Oncomelania snails in marshland of Changsha section of Xiang River,2003-2007 / 中国血吸虫病防治杂志
Chinese Journal of Schistosomiasis Control
; (6)1989.
Article
Dans Zh
| WPRIM
| ID: wpr-563356
Responsable en Bibliothèque :
WPRO
ABSTRACT
Objective To investigate the distribution and quantitative changes in each marshland of Changsha section of the Xiang River and evaluate the effectiveness of snail control in recent years.Methods A snail survey was carried out by using the systematic and environmental sampling method for 5 years.Results Twenty-four marshlands were investigated continuously from 2003 to 2007.The number of marshland with snails accounted for 77.8%,66.7%,70.8%,75.0% and 62.5% of the each investigated year,respectively.The total number of marshlands with snails were 20 that accounted for 83.3% of all marshlands investigated over the five years.The number of snails and the rate of living snails were different in each marshland,but the downward trend was significant(P
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Indice:
WPRIM
langue:
Zh
Texte intégral:
Chinese Journal of Schistosomiasis Control
Année:
1989
Type:
Article