论文信息 - The emergence of Schistosoma japonicum cercariae from Oncomelania quadrasi.

The emergence of Schistosoma japonicum cercariae from Oncomelania quadrasi.

The release of Schistosoma japonicum cercariae from Leytean Oncomelania quadrasi snails was observed under laboratory conditions. Two patterns of emergence were noted. The initial, nonperiodic emergence occurred immediately after submerging the snails in water and was followed by a periodic, diurnal emergence which peaked in the afternoon. The daily cercarial output of the periodic emergence appeared to be affected by exogenous light intensity. Furthermore, there was a cessation or reduction in cercarial output every 3rd or 4th day.

B. Blas | H. Kamiya | A. Santos | H. Nojima

[1] A. Sato,et al. The emergence of schistosome cercariae from snails. I. Hourly response of cercarial emergence of Schistosoma mansoni and S. haematobium, and effect of light-cut on their emergence. , 1978 .

[2] L. S. Ritchie,et al. The effect of light, temperature and pH on the emergence of Schistosoma japonicum cercariae from Oncomelania nosophora. , 1957 .

[3] K. Ishii,et al. The shedding aspect of cercariae of Schistosoma japonicum from its snail host, Oncomelania nosophora, in Japan. , 1954, Japanese journal of medical science & biology.

[4] L. Li,et al. Studies on the emergence of cercariae of Schistosoma japonicum from their Chinese snail host, Oncomelania, hupensis. , 1949, The American journal of tropical medicine and hygiene.

[5] K. Osaka. Studies on the biological behaviour of the cercariae of Schistosoma japonicum. Part I. Observations on the escape of cercariae from their snail hosts. , 1938 .