| 引用本文: | 闫云君,梁彦龄.武汉后湖长角涵螺的周年生产量.湖泊科学,2002,14(4):374-376. DOI:10.18307/2002.0413 |
| YAN Yunjun,LIANG Yaniing.Annual Production of Alocinma longicornis in Lake Houhu (Wuhan, China). J. Lake Sci.2002,14(4):374-376. DOI:10.18307/2002.0413 |
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| 摘要: |
| 采用两种方法对后湖长角涵螺(Alocinma longicornis)的周年生产量进行了测算,结果表明,两种方法得到的生产量较为吻合.生产量的带壳湿重和去壳干重分别是:体长频率法,2.22 g/(m2·a),0.111 g/(m2·a);瞬时生长率法,2.177 g/(m2·a),0.109 g/(m2·a).对应的P/B系数为4.0,5.4. |
| 关键词: 后湖 长角涵螺 生产量 P/B系数 |
| DOI：10.18307/2002.0413 |
| 分类号: |
| 基金项目:国家自然科学基金(39600019和39430101);湖北省自然科学基金(2000J109)联合资助 |
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| Annual Production of Alocinma longicornis in Lake Houhu (Wuhan, China) |
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YAN Yunjun1,2, LIANG Yaniing2
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1.School of life and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China;2.Institute of Hydrobiology, Chinese Academy of Sciences Wuhan 430072, P. R. China
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| Abstract: |
| The production of Alocinma Longicoryjis in Lake Houhu was estimated by two method.Tlie results are: 2.22 g/(m2·a) of wet weight with shell or 0.111 g/(m2·a) of dry weight shell-free by size-frequency method;2.177 g/m2.a of wet weight with shell or 0.109 g/m2·a of dry weight shell-free by instantaneous growth method.The corresponding P/B ratio are 4.0,5.4,respectively. |
| Key words: Lake Houhu A. Longicornis production P/B ratio |
