A mosquito’s life cycle includes an aquatic phase. Water quality is therefore an important determinant of whether or not the female mosquitoes will lay their eggs and the resulting immature stages will survive and successfully complete their development to the adult stage. In response to variations in laboratory rearing outputs, there is a need to investigate the effect of tap water (TW) (in relation to water hardness and electrical conductivity) on mosquito development, productivity and resulting adult quality. In this study, we compared the respective responses of Aedes aegypti and Ae. albopictus to different water hardness/electrical conductivity. First-instar larvae were reared in either 100% water purified through reverse osmosis (ROW) (low water hardness/electrical conductivity), 100% TW (high water hardness/electrical conductivity) or a 80:20, 50:50, 20:80 mix of ROW and TW. The immature development time, pupation rate, adult emergence, body size, and longevity were determined. Overall, TW (with higher hardness and electrical conductivity) was associated with increased time to pupation, decreased pupal production, female body size in both species and longevity in Ae. albopictus only. However, Ae. albopictus was more sensitive to high water hardness/EC than Ae. aegypti. Moreover, in all water hardness/electrical conductivity levels tested, Ae. aegypti developed faster than Ae. albopictus. Conversely, Ae. albopictus adults survived longer than Ae. aegypti. These results imply that water with hardness of more than 140 mg/l CaCO₃ or electrical conductivity more than 368 µS/cm cannot be recommended for the optimal rearing of Aedes mosquitoes and highlight the need to consider the level of water hardness/electrical conductivity when rearing Aedes mosquitoes for release purposes.

中文翻译：

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自来水质量是否会危害基因控制项目中的伊蚊的生产？

蚊子的生命周期包括水生阶段。因此，水质是决定雌蚊是否会产卵以及由此产生的未成熟阶段能否存活并成功完成其成年阶段的重要决定因素。为了响应实验室饲养产量的变化，有必要研究自来水（TW）（与水硬度和电导率有关）对蚊子发育，生产力和成年质量的影响。在这项研究中，我们比较了埃及伊蚊和埃及伊蚊的反应。白化病不同的水硬度/电导率 将初生幼虫放在通过反渗透（ROW）（低水硬度/电导率）纯化的100％水中，100％TW（高水硬度/电导率）或80：20、50：50、20： ROW和TW的80混合。确定未成熟的发育时间，化脓率，成年出苗率，体型和寿命。总体而言，TW（具有较高的硬度和电导率）与化time时间增加，p产量降低，两个物种的雌性体型以及Ae的寿命有关。仅白化病。然而，阂。相较于Ae，白水仙对高水硬度/ EC更为敏感。伊蚊。此外，在所有测试的水硬度/电导率水平中，e aegypti的发展比Ae快。白化病。相反，爱 白纹伊蚊的成年人比存活更长阂。伊蚊。这些结果表明，不建议将硬度大于140 mg / l CaCO ₃或电导率大于368 µS / cm的水用于伊蚊的最佳饲养，并强调需要在以下情况下考虑水硬度/电导率的水平饲养伊蚊，以释放它们。