| 扁担塘螺类生产力的研究Ⅱ、纹沼螺的周年生产量 |
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| 引用本文： | 阎云君,梁彦龄,王洪铸.扁担塘螺类生产力的研究Ⅱ、纹沼螺的周年生产量[J].水生生物学报,2001,25(1):36-41. |
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| 作者姓名： | 阎云君 梁彦龄 王洪铸 |
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| 作者单位： | 中国科学院水生生物研究所; |
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| 基金项目： | 国家自然科学基金项目(39600019和3943010101)；中国科学院资源与生态环境研究“九五”重大项目(KZ951-A1-102-01和KZ951-B1-104) |
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| 摘 要： | 采用四种方法对扁担塘纹沼螺的周年生产量进行了测算，结果表明，四种方法得到的生产量吻合极好。生产量的去壳干重和带壳湿重分别是体长频度法，178.07mg
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| 关 键 词： | 扁担塘 螺类 纹沼螺 生产力 P／B系数 周年生产量 |
| 文章编号： | 1000-3207(2001)01-006 |
| 修稿时间： | 1999年7月7日 |
PRODUCTION OF GASTROPODS
IN LAKE BIANDANTANG |
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| YAN Yun-jun,Liang Yan-ling,WANG Hong-zhu.PRODUCTION OF GASTROPODS
IN LAKE BIANDANTANG[J].Acta Hydrobiologica Sinica,2001,25(1):36-41. |
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| Authors: | YAN Yun-jun Liang Yan-ling WANG Hong-zhu |
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| Abstract: | The production of Parafossarulus striatulus in Lake Biandantang was calculated by using four method.The results were:178.07 mg*m-2*a-1 of dry weight shell-free or 4998.40 mg*m-2*a-1 of wet weight with shell by size-frequency method;174.5 mg*m-2*a-1 of dry weight shell-free or 4898.20 mg*m-2*a-1 of wet weight with shell by removal-summation method;174.5 mg*m-2*a-1 of dry weight shell-free or 4898.20 mg*m-2*a-1 of wet weight with shell by Allen curve method;178.14 mg*m-2*a-1 of dry weight shell-free or 5000.40 mg*m-2*a-1 of wet weight with shell by instantaneous growth method.The corresponding P/B ratios are 4.3,4.4,4.4,4.5, respectively. Therefore,the results by the four methods are in well agreement,which might be of great significance in the estimation of invertebrate production. |
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| Keywords: | Lake Biandantang Gastropods Parafossarulus striatulus Production P/B ratio |
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