The salinization of freshwaters due to the use of deicing road salts is a serious anthropogenic threat. We investigated the effects of the road deicer, which is mostly composed (ca. 70%) of NaCl, on the life cycle parameters of the cladoceran Moina macrocopa in acute and chronic toxicity tests and on the hatching success of resting eggs exposed to sediments contaminated with the road salt. The negative effects of the road salt on survival and life cycle parameters of animals were observed at concentrations above 5 g L⁻¹. The 6-month exposure of resting eggs to contaminated sediments had a consistent but relatively weak effect on the postexposure hatching of resting eggs. Experiments demonstrated that the concentration of the deicer in the top water layer in the water-sediment systems is more important for the hatching success of resting eggs than the salt content in the sediment. Only 2.2 ± 1.9% of resting eggs hatched when the deicer content in the top water layer was equal to 12 g L⁻¹. Lethal effects on hatchlings were observed starting from the deicer content in the water equal to 1 g L⁻¹, and 97.0 ± 0.8% of hatchlings were dead at the deicer content in the water equal to 5 g L⁻¹. Thus, the resilience of resting eggs to the contaminated sediments can ensure the replenishment of the population from the egg bank after the salinity disturbance is diminished but the negative effects of the elevated salt content in surface waters on active population will be manifested at lower salinities.

由于使用了除冰的道路盐，使淡水盐化是严重的人为威胁。我们调查了道路除冰剂（主要由NaCl组成）（约占70％） 在急性和慢性毒性试验中对锁骨Mo菜Moina macrocopa生命周期参数以及 暴露于受沉积物污染的静息卵孵化成功的影响与路盐。在高于5 g L ^-1的浓度下，观察到了路盐对动物生存和生命周期参数的负面影响。。静息卵暴露于受污染的沉积物中六个月对静息卵的暴露后孵化具有一致但相对较弱的影响。实验表明，水沉降系统中顶层水层中除冰剂的浓度比静息卵中的盐含量对孵化成功更重要。当顶部水层的除冰剂含量等于12 g L ^-1时，只有2.2±1.9％的静息卵孵化。上刚孵化致死作用，观察到从在水中的除冰器内容开始等于1克L- ^-1，和幼禽97.0±0.8％的死在水中除冰含量等于5克L- ^-1。因此，在降低盐度扰动后，静息卵对受污染沉积物的弹性可以确保从卵库补充种群，但是在较低盐度下，地表水中盐分升高对活动种群的负面影响将得到体现。