收稿日期: 2009-12-29
修回日期: 2010-06-04
网络出版日期: 2011-03-16
基金资助
国家“863”计划项目(2006AA10A406); “十一五”国家科技支撑计划项目(2006BAD01A1303); 广东省海洋渔业科技推广专项(A200899A02); 上海市科委创新行动计划重点攻关项目(073919102)
Comparison on growth rates of two full-sib families of Litopenaeus vannamei in different salinities
Received date: 2009-12-29
Revised date: 2010-06-04
Online published: 2011-03-16
Supported by
国家“863”计划项目(2006AA10A406); “十一五”国家科技支撑计划项目(2006BAD01A1303); 广东省海洋渔业科技推广专项(A200899A02); 上海市科委创新行动计划重点攻关项目(073919102)
在1‰—40‰盐度范围内, 设置9个盐度梯度(1‰、5‰、10‰、15‰、20‰、25‰、30‰、35‰、40‰), 比较不同盐度对2个具有不同遗传背景凡纳滨对虾Litopenaeus vannamei全同胞家系的影响。结果表明, 盐度对2个凡纳滨对虾家系的影响存在较大差异。对虾家系B03在10‰—40‰盐度范围内, 体长、体重差异不明显, 成活率较高; 对虾家系B08在1‰—40‰盐度范围内, 体长、体重、增长率具有明显的变化规律, 从盐度1‰到15‰逐渐升高, 15‰以后逐渐减小。对虾家系B03的成活率整体高于B08的成活率, 2个家系均难以适应盐度为1‰和5‰的水体。研究为凡纳滨对虾的家系选育提供一定的数据支持。
吴立峰,张吕平,胡超群,沈琪 . 2个凡纳滨对虾全同胞家系在不同盐度下的生长比较[J]. 热带海洋学报, 2011 , 30(1) : 152 -158 . DOI: 10.11978/j.issn.1009-5470.2011.01.152
An experiment was conducted to determine effects of different salinities (1‰, 5‰, 10‰, 15‰, 20‰, 25‰, 30‰, 35‰, 40‰) on growth rates of two full-sib families of Litopenaeus vannamei. The results suggested that salinity has different effects on the two families. For family B03, no obvious differences in body length and body weight existed in salinity range from 10‰ to 40‰. The growth of family B08 changed obviously with salinity, which increased with salinity in the range of 1‰ to 15‰ but decreased when salinity varied from 15‰ to 40‰. The mean survival rate of family B03 was higher than that of family B08. Both families did not show good tolerance to salinity between 1‰ and 5‰. Our findings provide evidence for the selective breeding of new line of L. vannamei.
Key words： Litopenaeus vannamei; salinity gradient; growth; body length; body weight
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