| 日本沼虾（Macrobrachiumnipponensis）形态性状对体重的影响效应 |
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| 引用本文： | 王志铮,吴一挺,杨 磊,朱卫东.日本沼虾（Macrobrachiumnipponensis）形态性状对体重的影响效应[J].海洋与湖沼,2011,42(4):612-618. |
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| 作者姓名： | 王志铮 吴一挺 杨 磊 朱卫东 |
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| 作者单位： | 浙江海洋学院水产学院;浙江海洋学院水产学院;舟山市海洋与渔业局;浙江海洋学院水产学院;余姚市水产技术推广中心 |
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| 基金项目： | 浙江省重大科技专项农业项目, 2008C12083 号 |
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| 摘 要： | 选取日本沼虾5月龄同生群雌、雄虾各90尾，分别测量其体重、体长、头胸甲长、胸宽、胸高、腹节长、腹节宽、腹节高、尾节长、尾节宽、尾节高、眼窝距、额剑长等13个表型性状，并采用相关分析、通径分析和偏回归分析等方法定量研究了雌、雄个体形态性状对体重的影响效应。结果表明：（11雌、雄测定群体各形态性状测量值间均存在显著的性别差...
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| 关 键 词： | 日本沼虾 同生群 形态性状 体重 性别差异 多元分析 |
| 收稿时间： | 2010/8/21 0:00:00 |
| 修稿时间： | 2010/10/18 0:00:00 |
EFFECT OF PHENOTYPIC AND MORPHOMETRIC TRAITS ON BODY WEIGHT OF MACROBRACHIUM NIPPONENSIS |
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| WANG Zhi-Zheng,WU Yi-Ting,YANG Lei and ZHU Wei-Dong.EFFECT OF PHENOTYPIC AND MORPHOMETRIC TRAITS ON BODY WEIGHT OF MACROBRACHIUM NIPPONENSIS[J].Oceanologia Et Limnologia Sinica,2011,42(4):612-618. |
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| Authors: | WANG Zhi-Zheng WU Yi-Ting YANG Lei and ZHU Wei-Dong |
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| Institution: | Marine Fishery College of Zhejiang Ocean University;Marine Fishery College of Zhejiang Ocean University;Ocean and Fisheries Bureau of Zhoushan City;Marine Fishery College of Zhejiang Ocean University;Fishery Technology Extension Center of Yuyao |
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| Abstract: | Effect of phenotypic and morphometric traits on body weight of male and female Macrobrachium nipponensis were studied using correlation analysis, path analysis, and regression analysis. 90 males and 90 females of five-month-old individuals were randomly sampled from a cohort of autumn-cultured single species. Body length (BL), carapace length (CL), carapace width (CW), carapace height (CH), total length of the abdominal segment (AL), width of the first abdominal segment (AW), height of the first abdominal segment (AH), telson length (TL), telson height (TH), telson width (TW), rostrum length (RL), distance between eyes (ED), and body weight (BW) were measured for all individual. Correlation coefficients among all the traits were calculated. The results indicated that: (1) the apparent statistics of various traits were significantly different between males and females (P<0.05), and all the correlation coefficients between each phenotypic trait and body weight are at extremely significant level (P<0.01), while all these coefficients of males are much higher than those of females. (2) BL, CL, and CW of males were used as the independent variables, and body weight was used as the dependent variables for path analysis (R2 = 0.952), while CL, CW, BL, and CH of females were used as independent variables, and body weight was used as dependent variables for the path analysis (R2 = 0.772). The path coefficients show BL>CL>CW, and CL>CW>BL>>CH, respectively. (3) Multiple regression equation of the body length, carapace length, and carapace width to the body weight was obtained to estimate male body weight, the regression intercept and partial coefficients of the equation were-4.394, 0.069, 0.152, and 0.109, respectively. Similarly, multiple regression equation of the carapace length, carapace width, body length, and carapace height to the body weight was obtained to estimate female body weight, the regression intercept and partial coefficients of the equation were?-2.448, 0.029, 0.065, 0.121, and 0.105, respectively. |
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| Keywords: | Macrobrachium nipponensis Cohort Morphometric trait Body weight Gender differences Multivariate analysis |
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