[Density and hydrostatic settling velocity of Biomphalaria straminea]
Min Feng-Yang1, Wang Jia-Sheng1, Xu Xing-Jian2
1Changjiang River Scientific Research Institute, Hubei Province, Wuhan 430010, China.
Objective:
To understand the eco-hydraulics characteristics of Biomphalaria straminea, the intermediate host of Schistosoma mansoni.
Methods:
The drainage method and settlement tube method were applied to measure B. straminea's density and hydrostatic settling velocity respectively.
Results:
The density of B. straminea was 1.04-1.16 g/cm3, and the average value was 1.08 g/cm3. The hydrostatic settling velocity was 2.32-12.92 cm/s.
Conclusions:
The eco-hydraulics characteristics of B. straminea is different from Oncomelania hupensis, and more attention should be paid to the hydraulic measures for the control of B. straminea.
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