Interactive effects of water pH and hardness levels on the growth and reproduction of Heterocypris incongruens (Crustacea: Ostracoda)
Interactive effects of water pH and hardness levels on the growth and reproduction of Heterocypris incongruens (Crustacea: Ostracoda)
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DOI：
10.1007/s10750-015-2199-z
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发表时间：
2015-02
期刊：
影响因子：
2.6
通讯作者：
Yongeun Kim;H. Mo;Jino Son;Yun-Sik Lee;Sung-Eun Lee;Kijong Cho
中科院分区：
文献类型：
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作者：
Yongeun Kim;H. Mo;Jino Son;Yun-Sik Lee;Sung-Eun Lee;Kijong Cho
pH和水的硬度被认为是甲壳类动物种群动态的重要因素。本研究研究了pH（6、7、8和9）和水硬度（40 mg CaCO3/l和160 mg CaCO3/l）对淡水介形虫（heterocypris incongruensRamdohr）生长和繁殖反应的影响。pH值为6或7时，异同杂环虫的生长速度较高，甲壳长度较短。h。在硬水条件下，不一致性更高。pH和水硬度对鸡蛋孵化率的影响差异不显著。因此，较高的pH值和水硬度导致了种群增长率的增加。综上所述，pH水平和水硬度的变化导致了h的生活史特征的变化。incongruens。这些特征为h。incongruenscan持续下去。
pH and water hardness are considered to be important factors for population dynamics in crustaceans. In this study, the effects of pH (6, 7, 8, and 9) and water hardness (40 mg CaCO3/l and 160 mg CaCO3/l) on the growth and reproductive response of the freshwater ostracodHeterocypris incongruensRamdohr were investigated.Heterocypris incongruensexposed to a pH level of 6 or 7 had a slower growth rate and shorter carapace length than those exposed to high pH levels. The reproductive output ofH. incongruenswas higher under hard water conditions. However, there were no significant differences in the effects of pH and water hardness on the egg hatching rate. Consequently, higher pH levels and water hardness resulted in increased population growth rates. Collectively, the results indicate that variations in pH levels and water hardness lead to changes in the life history characteristics ofH. incongruens. These characteristics provide a mechanistic explanation for habitats in whichH. incongruenscan persist.