Studies on the life-cycle of Himasthla militaris (Trematoda: Echinostomatidae): influence of temperature and salinity on the life-span of the miracidium and the infection of the first intermediate host, Hydrobia ventrosa
Vanoverschelde, R. (1982). Studies on the life-cycle of Himasthla militaris (Trematoda: Echinostomatidae): influence of temperature and salinity on the life-span of the miracidium and the infection of the first intermediate host, Hydrobia ventrosa. Parasitology 84(1): 131-135. http://dx.doi.org/10.1017/S0031182000051726
In: Parasitology. Cambridge University Press: London. ISSN 0031-1820; e-ISSN 1469-8161, more
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| Abstract |
The influence of temperature and salinity on miracidial longevity and miracidial infectivity of the digenean, Himasthla militaris, has been examined. At 14, 25 and 30 °C the half-life of the miracidia was 1200, 630 and 420 min respectively, and infection of the first intermediate host, Hydrobia ventrosa, only occurred at 25 and 30 °C, for both temperatures 52% became infected. In the range 2·1 to 34‰ (2·1, 4·2, 8·5, 17 and 34‰) the miracidia had a minimal and maximal half-life of 60 and 630 min in water with a salinity of 2·1 and 17‰ respectively, while the infection of the snail host was possible only in water with a salinity of 8·5 and 17‰. |
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