| pH对舟形无齿蚌钩介幼虫存活率的影响 |
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| 引用本文： | 邓道贵,何卫龙.pH对舟形无齿蚌钩介幼虫存活率的影响[J].信阳师范学院学报(自然科学版),2006,19(2):177-178. |
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| 作者姓名： | 邓道贵 何卫龙 |
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| 作者单位： | 淮北煤炭师范学院,生物系,安徽,淮北,235000 |
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| 基金项目： | 安徽省自然科学基金资助项目(2000JL196) |
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| 摘 要： | 取舟形无齿蚌成熟钩介幼虫暴露于一系列pH(3.0~12.0)中6 d,每隔24 h检测不同pH对其存活率的影响.结果表明:钩介幼虫适合在中性及弱碱性条件下生存.在同一时间内,pH7.0中的钩介幼虫存活率最高,暴露5 d后存活率仍达70%.pH越低或越高钩介幼虫存活率下降越大.当pH≤3或≥11时钩介幼虫在1 d内全部死亡.暴露2 d后,pH3.5中钩介幼虫的存活率为0.暴露3 d后,pH4.0中钩介幼虫的存活率约为20%,pH10.0中小于30%.在同一大小的pH中,钩介幼虫存活率随时间的延长而降低.
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| 关 键 词： | 舟形无齿蚌 钩介幼虫 pH 存活率 |
| 文章编号： | 1003-0972（2006）02-0177-02 |
| 收稿时间： | 2005-06-23 |
| 修稿时间： | 2006-01-12 |
Effects of pH upon the Survival Rate of Glochidia of Anodonta euscophys |
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| DENG Dao-gui,HE Wei-long.Effects of pH upon the Survival Rate of Glochidia of Anodonta euscophys[J].Journal of Xinyang Teachers College(Natural Science Edition),2006,19(2):177-178. |
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| Authors: | DENG Dao-gui HE Wei-long |
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| Institution: | Department of Biology, Huaibei Coal Industry Teachers College, Huaibei 235000,China |
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| Abstract: | The mature glochidia of Anodonta euscophys were exposed to a series of pH(3.0~12.0) during six days.The sample was observed every twenty-four hour. The results showed that the glochidia were adaptable to neutral and weak basic environment.The survival rate of glochidia exposed to pH7.0 was the highest during the same time,and 70% of samples still surived after 5 days at pH7.0 environment.Accordingly,the survivial rate decreasing with its condition deviating neutral.The survival rate of glochidia declined with time prolonged at the same pH.The results also showed that the glochidia were adaptable to the change of pH. |
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| Keywords: | Anodonta euscophys glochidia pH survival rate |
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