| 梭鱼（Lizahaematocheila）外部形态性状对体重影响效果分析 |
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| 引用本文： | 耿绪云,马维林,李相普,孙金生.梭鱼（Lizahaematocheila）外部形态性状对体重影响效果分析[J].海洋与湖沼,2011,42(4):530-537. |
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| 作者姓名： | 耿绪云 马维林 李相普 孙金生 |
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| 作者单位： | 天津市水产养殖病害防治中心;天津市渔政渔港监督管理处;天津市水产研究所;天津市水产养殖病害防治中心;天津师范大学生命科学学院 |
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| 基金项目： | 天津市科技计划项目资助, 10ZCKFN02500 号、0801030 号 |
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| 摘 要： | 采用相关分析、通径分析、决定分析和多元线性回归分析方法，对不同年龄组梭鱼外部形态性状对体重的影响效果进行了分析研究。结果表明，体长、体高是影响各年龄组梭鱼体重的共同性状，在0、1、3、5龄组，体长对体重的作用最大；在2、4龄组，体高对体重的作用最大。尾柄高是除3龄组外影响梭鱼体重的重点性状。头长、尾柄长对体重直接作用相...
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| 关 键 词： | 梭鱼 形态性状 相关分析 通径分析 |
| 收稿时间： | 2010/10/25 0:00:00 |
| 修稿时间： | 2010/12/28 0:00:00 |
MORPHOMETRIC ATTRIBUTES TO BODY WEIGHT FOR THE REDLIP MULLET LIZA HAEMATOCHEILA |
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| GENG Xu-Yun,MA Wei-Lin,LI Xiang-Pu and SUN Jin-Sheng.MORPHOMETRIC ATTRIBUTES TO BODY WEIGHT FOR THE REDLIP MULLET LIZA HAEMATOCHEILA[J].Oceanologia Et Limnologia Sinica,2011,42(4):530-537. |
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| Authors: | GENG Xu-Yun MA Wei-Lin LI Xiang-Pu and SUN Jin-Sheng |
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| Institution: | Tianjin Aquaculture Disease Prevention & Treatment Center;Tianjin Administration Office of Fishery and Fishing Harbor Supervision;Tianjin Fishery Institute;Tianjin Aquaculture Disease Prevention & Treatment Center;College of Life Sciences, Tianjin Normal University |
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| Abstract: | The redlip mullet Liza haematocheila is an important economic species in aquiculture. However, the superior varieties of artificial breeding were not well selected, so fine breed selection was needed. The body weight is a direct indicator to productivity, in this paper, the relationship of morphometric attributes to the body weight of the redlip mullet was studied. 879 original species of L. haematocheila were collected from Bohai Bay. Morphometric attributes of body length (X1), head length (X2), snout length (X3), eye diameter (X4), interorbital width (X5), caudal peduncle length (X6), caudal peduncle depth (X7) and body depth (X8) were measured according to the method of GB18654.3-2008. Redlip mullets were classified by age after the weight and age were detected. Path coefficients, determination coefficients and correlation index were calculated. Morphometric attributes of every age that affect the body weight were determined except the path coefficients of not significant attributes. The results showed that the weight of redlip mullets was affected by the body length and depth. X1 at age of 0, 1, 3, 5 and X8 at age of 2, 4 showed significant effect on body weight; X7 was an important attribute that affect the weight of redlip mullet except the age of 3. X1, X7 and X8 exhibited significant indirect effect on body weight, X2 and X6 illustrated slight direct effect on body weight. The multiple regression equation to get the body weight was established. As dependent variable in weight (Y), morphological traits as independent variables (X1-8), the data of redlip mullet determination in each age group for multiple linear regression analysis, and remove the regression coefficient, which is not significant traits, established the best multiple linear regression equation in each age group. Above conclusions were helpful for the selective breeding of redlip mullet. |
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| Keywords: | Liza haematocheila Morphometric attribute Correlation analysis Path analysis |
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