| 引用本文: | 闫云君,梁彦龄.武汉后湖湖球蚬的周年生产量.湖泊科学,2003,15(1):76-80. DOI:10.18307/2003.0111 |
| YAN Yunjun,LIANG Yanling.Annual Production of Sphaerium Lacustre in Lake Houhu (Wuhan, China). J. Lake Sci.2003,15(1):76-80. DOI:10.18307/2003.0111 |
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| 摘要: |
| 采用体长频率法和瞬时生长率法对后湖湖球蚬(Sphaerium lacustre)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,1.048 g/(m2·a), 0.0599 g/(m2·a);瞬时生长率法,1.178 g/(m2·a), 0.0673 g/(m2·a).对应的P/B系数为3.2.,3.4. |
| 关键词: 后湖湖球蚬Sphaerium lacustre 生产量 武汉后湖 P/B系数 |
| DOI：10.18307/2003.0111 |
| 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 Sphaerium Lacustre in Lake Houhu (Wuhan, China) |
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YAN Yunjun1,2, LIANG Yanling2
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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 Sphaerium. lacustre in Lake Houhu was estimated by two methods. The results were:1.048 g/(m2·a) of fresh weight with shell or 0.0599g/(m2·a) of dry weight shell-free by size-frequency method; 1.178 g/(m2·a) of fresh weight with shell or 0.0673 g/(m2·a) of dry weight shell-free by instantaneous growth method. The corresponding P/B ratio were 3.2 3.4, respectively. Thus, the results by the two methods are coincided each other. |
| Key words: Lake Houhu Sphaerium lacustre production P/B ratio |
