要約

It has been found that under the influence of insignificant temperature fluctuations the rate of embryonic development of Lymnaea stagnalis essentially increased, whereas the death rate of its embryos essentially decreased. The linear and weight growth of mollusks sharply increased, whereas the variability of its specimens in terms of their length and mass decreased. In this case, the death rate of the specimens decreased. The sexual maturity of mollusks was registered earlier, whereas their fecundity essentially increased.