| 关于放逸短沟蜷的生态研究 |
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| 引用本文： | 李霞,赵匠.关于放逸短沟蜷的生态研究[J].东北师大学报(自然科学版),1997(4):59-61. |
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| 作者姓名： | 李霞 赵匠 |
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| 作者单位： | 四平师范学院 |
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| 摘 要： | 通过野外调查和室内实验，阐述了日本产放逸短沟蜷在不同生态环境一体内稚贝保有状况以及稚贝产出时期与水温的关系，结果表明，雌性个体的育儿囊中稚贝含有量夏季和冬季多，春季和秋季急剧减少。
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| 关 键 词： | 放逸短沟蜷 稚贝 生态 淡水贝类 |
Ecological Study on the Semisuleospora Libertina |
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| Li Xia,Zhao Jiang.Ecological Study on the Semisuleospora Libertina[J].Journal of Northeast Normal University (Natural Science Edition),1997(4):59-61. |
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| Authors: | Li Xia Zhao Jiang |
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| Abstract: | The fresh water snail, semisulcospira libertina was investigated ecologically at 3 stations with different ecological conditions. The female snails with embryo shells in the brood pouch were observed abundantly in summer and winter, where as they decreased abruptly in number in spring(April and May) and autumn(September and October). when the brood pouch contained only a small number of embryos and achieved a vesicular appearance. |
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| Keywords: | semisulcospiral libertina embryo shell water temperature |
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