| 离岸养殖与陆基养殖尖吻鲈形态性状与体质量的相关性研究 |
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| 引用本文： | 赵旺,江淼,陈明强,林凤昊,杨蕊,于刚,孟祥君,马振华.离岸养殖与陆基养殖尖吻鲈形态性状与体质量的相关性研究[J].海洋学报,2018,40(8):53-62. |
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| 作者姓名： | 赵旺 江淼 陈明强 林凤昊 杨蕊 于刚 孟祥君 马振华 |
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| 作者单位： | 1.中国水产科学研究院 南海水产研究所 热带水产研究开发中心, 海南 三亚 572018;农业部南海渔业资源开发利用重点实验室, 广东 广州 510300 |
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| 基金项目： | 中国水产科学研究院南海水产研究所中央级公益性科研院所基本科研业务费专项资金项目（2017ZD01，2018ZD01）；农业部财政专项（南海水产研究所南海渔业中心）；海南省重点研发计划项目（ZDYF2017036，ZDYF2018096）；现代农业产业技术体系建设项目（CARS-47）。 |
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| 摘 要： | 为探明陆基养殖和离岸养殖尖吻鲈（Lates calcarifer）形态性状与体质量的关系及形态差异，在海南省陵水县室内车间及南沙美济礁深水网箱对同一批次15月龄尖吻鲈的体质量Y和头长X1、躯干长X2、体长X3、全长X4、体高X5、眼径X6、吻长X7、尾柄高X8、尾柄长X9等9个形态性状进行了测量，并进行了相关分析、通径分析和回归分析。结果显示，2个养殖条件下尖吻鲈在眼径和吻长等2个方面无显著差异，但在体质量、头长、躯干长、体长、全长、体高、尾柄高、尾柄长和体高与全长的比值等方面呈极显著差异（P<0.01）。陆基养殖尖吻鲈各主要性状间的相关关系达到显著（P<0.05）或极显著水平（P<0.01）；除眼径X6与吻长X7无显著相关性外，美济礁离岸养殖尖吻鲈的其他各性状间的相关性达到显著（P<0.05）或极显著水平（P<0.01）。通径分析结果表明，陆基养殖群体的X4和X5对尖吻鲈体质量的直接作用达显著水平（P<0.05），而X3、X5和X9对美济礁离岸养殖群体体质量的直接作用达显著（P<0.05）或极显著水平（P<0.01）。决定系数分析显示，陆基养殖群体的X4和X5对体质量的共同决定系数之和为0.971，美济礁离岸养殖群体的X3、X5和X9对体质量的共同决定系数之和为0.864，说明2个尖吻鲈养殖群体的体质量分别主要由这些形态性状决定；通过逐步回归分析，建立了2个养殖群体尖吻鲈多元回归方程:Y陆基养殖=-1 128.61+3.143X4+6.418X5，Y美济礁离岸养殖=-2 054.81+7.377X3+9.196X5-10.041X9。研究表明，2种养殖模式下尖吻鲈的形态存在显著差异，美济礁离岸养殖尖吻鲈在体型上更具优势。
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| 关 键 词： | 尖吻鲈 形态性状 体质量 陆基养殖 离岸养殖 |
| 收稿时间： | 2017/11/14 0:00:00 |
| 修稿时间： | 2018/8/4 0:00:00 |
Correlation analysis of morphological attributes with body weight of Lates calcarifer cultured in offshore sea cage and indoor |
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| Zhao Wang,Jiang Miao,Chen Mingqiang,Lin Fenghao,Yang Rui,Yu Gang,Meng Xiangjun and Ma Zhenhua.Correlation analysis of morphological attributes with body weight of Lates calcarifer cultured in offshore sea cage and indoor[J].Acta Oceanologica Sinica (in Chinese),2018,40(8):53-62. |
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| Authors: | Zhao Wang Jiang Miao Chen Mingqiang Lin Fenghao Yang Rui Yu Gang Meng Xiangjun and Ma Zhenhua |
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| Affiliation: | 1.Tropical Fisheries Research and Development Center, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Sanya 572018, China;Key Laboratory of South China Sea Fishery Resource Exploitation & Utilization, Ministry of Agriculture, Guangzhou 510300, China2.Sansha Mischief Fisheries Development Company, Ltd., Haikou 570311, China |
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| Abstract: | The relationship between morphological attributes on body weight and morphological differentiation of Lates calcarifer was explored, 9 morphological attributes including head length (X1), stem length (X2), body length (X3), full length (X4), body height (X5), eye diameter (X6), snout length (X7), caudal peduncle height (X8), caudal peduncle length (X9) and body weight (Y) was measured from Hainan Lingshui land-based culture and Nansha Meiji Reef offshore sea cage culture population of fifteen month old Lates calcarifer by correlation analysis, path analysis and regression analysis. The results showed that there were no significant differences in the eye diameter and snout length in the two breeding conditions, but in the body weight, head length, stem length, body length, full length, body height, caudal peduncle height, caudal peduncle length and the ratio of body height and full length was very significant difference (P<0.01). There were significant correlations or highly significant correlations (P<0.01 or P<0.05) among the 9 morphological attributes and body weight in land-based culture population, and similar results in Meiji reef''s offshore sea cage culture population in addition to X6 and X7 have no significant correlation. The path analysis revealed that the direct effects of X4 and X5 on body weight were significant (P<0.01) in land-based culture population, and the direct effects of X3, X5 and X9 on body weight were significant or highly significant (P<0.01 or P<0.05) in Meiji reef''s offshore sea cage culture population. The analysis results of determination coefficients showed that the total decision coefficient of morphological attributes to body weight is find to be 0.971 and 0.864 respectively, and indicating the morphological attributes are the main factor to body weight. The multiple regression equation was expressed as Y=-1 128.61+3.143 X4+6.418 X5, Y=-2 054.81+7.377 X3+9.196 X5-10.041 X9 are established by stepwise regression analysis respectively. The findings indicate that there are significant differences in the 2 rearing model of L. calcarifer, and Meiji reef''s offshore sea cage aquaculture advantage the body shape of L. calcarifer. |
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| Keywords: | Lates calcarifer morphological attributes body weight land-based culture offshore sea cage culture |
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