| 澄湖似刺鳊鮈个体繁殖力的研究 |
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| 引用本文： | 张呈祥,徐钢春,顾若波,许爱国.澄湖似刺鳊鮈个体繁殖力的研究[J].上海海洋大学学报,2010,19(5):615-621. |
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| 作者姓名： | 张呈祥 徐钢春 顾若波 许爱国 |
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| 作者单位： | 江苏江阴市水产指导站, 江苏 江阴 214431;中国水产科学研究院淡水渔业研究中心, 江苏 无锡 214081;江苏省苏州市水产养殖场有限公司, 江苏 苏州 215127 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金资助项目 (2007JBFB03); 农业部水生动物遗传育种和养殖生物学重点开放实验室开放课题项目 (BM2007-08); 中国水产科学研究院淡水生态与健康养殖重点开放实验室开放课题项目 (2007FEA0203) |
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| 摘 要： | 对澄湖48尾产卵前成熟似刺鳊鮈雌鱼的个体绝对繁殖力(F)、体长相对繁殖力(FL)和体重相对繁殖力(FW)分布特征、变化规律及与体型若干形态学指标的关系进行了研究。结果显示,似刺鳊鮈样本由1~5龄鱼组成,F主要变幅在1.71×104~3.83×104粒之间(平均为2.45×104粒);FL主要变幅在0.94×103~1.52×103粒/cm之间(平均为1.13×103粒/cm);FW主要变幅在95~155粒/g之间(平均为119粒/g)。F与体长、体重和年龄分别呈二次函数、直线和三次函数相关,FL与体长、体重均呈三次函数关系,FW与它们相关不显著。综合分析,在进行渔业生产时以体长21~23 cm、年龄2~3龄鱼为人工催产亲本为宜。采用SPSS软件的曲线回归分析其F和FL均与体长、体重和成熟系数密切相关,而FW仅与成熟系数相关,在实际中可直接用体长、体重同繁殖力的关系来预测似刺鳊鮈的绝对繁殖力。
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| 关 键 词： | 似刺鳊鮈 个体繁殖力 澄湖 |
| 收稿时间： | 2009/12/1 0:00:00 |
Fecundity of Paracanthobrama guichenoti in Lake Cheng |
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| ZHANG Cheng-xiang,XU Gang-chun,GU Ruo-bo,XU Ai-guo.Fecundity of Paracanthobrama guichenoti in Lake Cheng[J].Journal of Shanghai Ocean University,2010,19(5):615-621. |
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| Authors: | ZHANG Cheng-xiang XU Gang-chun GU Ruo-bo XU Ai-guo |
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| Institution: | Spread Station of Aquaculture Technology of Jiangyin, Jiangyin 214431, China;Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; Suzhou Aquacultural Farm Co., Ltd., Suzhou 215127, China |
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| Abstract: | The aim of the present study was to identify the distribution, change and relationship of the individual absolute fecundity (F) and relative fecundity (FL in eggs/cm and FW in eggs/g) .48 specimens of Paracanthobrama guichenoti were obtained from Lake Cheng in 2008.F varies from 17 100-38 300 (average 24 500) eggs, FL from 940-1 520 (average 1 130) eggs/cm, and FW from 95-155 (average 119) eggs/g.The relations of F of Paracanthobrama guichenoti to body length, body weight and age are shown to be quadratic, linear and cubic positively, respectively.The relations of FL to body length and body weight are shown to be cubic positively, but FW is not related to body character indexes.The mature fish should have the body length from 21-23 cm and age from 2-3 years.Curve estimation regression analyses via SPSS software showed its F and FL significantly related with body length, weight and maturing coefficient, but relative fecundity per gram (FW) only with maturing coefficient.Futhermore, based on the relationship between individual fecundity and morphological indices, the individual fecundity and reproduction ability of fish population should be estimated and forecasted.Overall, the results of the present study indicated that the relationship between body weight and fecundity was closer than that of body length and age, in a way, it is suitable to use the body weight of Paracanthobrama guichenoti to estimate the population productiveness. |
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| Keywords: | Paracanthobrama guichenoti fecundity Lake Cheng |
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