| 引用本文: | 闫云君,梁彦龄,王洪铸.武汉后湖铜锈环棱螺的周年生产量.湖泊科学,2000,12(1):68-72. DOI:10.18307/2000.0111 |
| YAN Yunjun,LIANG Yanling,WANG Hongzhu.Annual Production of Bellamya aeruginosa in Houhu Lake, Wuhan. J. Lake Sci.2000,12(1):68-72. DOI:10.18307/2000.0111 |
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| 摘要: |
| 1996-1997年对后湖铜锈环棱螺进行了周年研究,结果表明其种群含三个年龄组,其中1996年组生长最快,其去壳干重瞬时生长率为2.80.采用瞬时生长率法测算其周年生产量为:带壳湿重33.13g m-2a-1;去壳千重1.932g m-2a-1;P/B系数为0.85. |
| 关键词: 铜锈环棱螺 生产量 P/B系数 后湖 |
| DOI：10.18307/2000.0111 |
| 分类号: |
| 基金项目:国家自然科学基金(39600019和39430101)资助项目 |
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| Annual Production of Bellamya aeruginosa in Houhu Lake, Wuhan |
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YAN Yunjun1,2, LIANG Yanling1, WANG Hongzhu1
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1.Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P. R. China;2.School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
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| Abstract: |
| An investigation on one of the dominant species of gastropods, Bellamya aeruginosa in Houhu Lake, Wuhan was carried out from April, 1996 to March, 1997.The results showed that the population was composed of three year classes, among which the 96 year class grew most quickly, with instantaneous growth rate of dry weight (unshelled) 2.80.The annual production of the animal calculated by instantaneous growth rate method was: wet weight, 33.13 g m-2a-1;dry weight (unshelled), 1.932 g m-2a-1.The corresponding annual P/B ratios was 0.85. |
| Key words: Bellamya aeruginosa annual production P/B ratio Houhu Lake (Wuhan) |
