[Growth and decline of oncomelania snail status of canals in Qianjiang City in Four Lake areas, 1990-2010].
Xiu-lan Xiao, Yu-Ping Cheng, Qian-ceng Xu
Abstract
Xiu-lan Xiao, Yu-Ping Cheng, Qian-ceng Xu
Abstract
OBJECTIVE: To understand the growth and decline of Oncomelania snail status in canals of Four Lake areas, so as to provide the evidence for formulating control strategy. METHODS: The data of snail investigations were analyzed retrospectively. RESULTS: The snail area decreased by 31.05%, the snail density decreased by 92.08, and the infection rate of snails decreased by 87.69% in 2010 compared with those in 1990. CONCLUSION: During the period of 1990 to 2010, all the key indicators of snail status decline. However, we still need strengthen the snail control.
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OBJECTIVE: To understand the growth and decline of Oncomelania snail status in canals of Four Lake areas, so as to provide the evidence for formulating control strategy. METHODS: The data of snail investigations were analyzed retrospectively. RESULTS: The snail area decreased by 31.05%, the snail density decreased by 92.08, and the infection rate of snails decreased by 87.69% in 2010 compared with those in 1990. CONCLUSION: During the period of 1990 to 2010, all the key indicators of snail status decline. However, we still need strengthen the snail control.
Key concepts: Snail, Oncomelania, Molluscicide, Oncomelania hupensis, Ecology, Biology, Geography, Zoology