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| 鄱阳湖蒙古鲌年龄与生长特征 | |
| 引用本文： | 张小谷,阮正军,熊邦喜.鄱阳湖蒙古鲌年龄与生长特征[J].海洋湖沼通报,2008(3). |
| 作者姓名： | 张小谷 阮正军 熊邦喜 |
| 作者单位： | 1. 九江学院生命科学学院,江西,九江,332000;华中农业大学水产学院,湖北,武汉,430070 2. 九江学院生命科学学院,江西,九江,332000 3. 华中农业大学水产学院,湖北,武汉,430070 |
| 基金项目： | 江西省教育厅科技项目(项目) |
| 摘 要： | 对2005-2006年采集于鄱阳湖的169尾蒙古鲌年龄与生长进行了研究.鄱阳湖蒙古鲌样本,年龄范围0～5,以2～3龄为主,优势体长在200-300mm(53.25%),体重分布集中在100～300g(55.03%).结果表明:体长与鳞长呈直线相关;体长和体重呈幂函数关系;属匀速生长,用von Bertalanffy方程描述其生长式型.生长拐点年龄为6.24龄,对应体长为395.53mm,体重为852.90g.了解鄱阳湖蒙古鲌的生长规律,为鄱阳湖蒙古鲌资源的合理配置与利用提供依据. |
| 关 键 词： | 鄱阳湖 蒙古鲌 生长特征 |
AGE AND GROWTH CHARACTERISTICS OF CULTER MONGOLICUS IN POYAND LAKE |
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| ZHANG Xiaogu,RUAN Zhengjun,XIONG Bangxi.AGE AND GROWTH CHARACTERISTICS OF CULTER MONGOLICUS IN POYAND LAKE[J].Transaction of Oceanology and Limnology,2008(3). | |
| Authors: | ZHANG Xiaogu RUAN Zhengjun XIONG Bangxi |
| Abstract: | Culter mongolicus Basilewsky(1855) is a primary species of freshwater fishes in Culter,Cultrinae,Cyprinidae.A total of 169 specimens were collected from Lake Poyang,the largest freshwater lake in China,during the period from Jan.2005 to Dem.2006.Age groups ranged between zero and five,with the second and third year-classes dominating.Standard length of the population is mainly between 200-300mm(53.25%),and body weight is mainly between 100-300g(55.03%).The results showed that the diameters of scale take on linear relationship with standard length.The regression equation for standard length and body weightis.Growth takes on a constant speed style,which can be described with von Bertalanffy equations,namely standard length growth equation and body weight growth equation.The body weight growth inflexion point is 6.24,with the corresponding standard length of 395.53mm and body weight of 852.90g.According to the age and growth characteristics of C.mongolicus in Lake Poyang,we could understand the using situation and protect the fish resources rationally. |
| Keywords: | Lake Poyang Culter mongolicus growth |
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