收稿日期: 2013-09-23
修回日期: 2013-10-22
网络出版日期: 2014-08-11
基金资助
国家“虾产业体系”项目(CARS-47); 高技术研究发展计划(“863”计划)项目“主要养殖甲壳类良种培育”(2012AA10A409)
Growth characteristics of two morphologically similar varieties of Marsupenaeus japonicus under indoor cultivation environment
Received date: 2013-09-23
Revised date: 2013-10-22
Online published: 2014-08-11
我国沿海日本囊对虾Marsupenaeus japonicus群体资源可依据其头胸甲形态分为两种不同形态变异类型。文章对室内养殖环境中日本囊对虾2种形态变异类型F1群体不同性别对虾的体长和体质量进行了跟踪测量, 研究其生长特性及其规律。结果表明: 日本囊对虾体长和体质量呈幂函数关系, 两群体雌、雄虾的体长、头胸甲长与体重的拟合参数b值皆近似为3, 呈等速生长。拟合其von Bertallanffy生长方程如下, 形态变异类型Ⅰ(♀): Lt=15.932×[1-e-0.0067(t-26.5055)], Wt=48.798×[1-e-0.0067(t-26.5055)]2.973; 形态变异类型Ⅰ(♂): Lt=13.642×[1-e-0.0091(t-35.0053)], Wt=30.437×[1-e-0.0091(t-35.0053)]2.969; 形态变异类型Ⅱ(♀): Lt=13.865×[1-e-0.0077(t-22.8107)], Wt=31.449×[1-e-0.0077(t-22.8107)]3.103; 形态变异类型Ⅱ(♂): Lt=12.094× [1-e-0.0102(t-32.6776)], Wt=21.470×[1-e-0.0102(t-32.6776)]3.120。进一步分析其极限生长年龄和生长拐点日龄结果表明, 在同池饲养条件下, 雌虾个体大于雄虾, 形态变异类型Ⅰ的个体大于形态变异类型Ⅱ; 前者临界最大体重高于后者, 但性成熟时间晚于后者。研究结果为日本囊对虾生长性状相关群体选育提供了基础生物学依据。
董宏标 , 苏永全 , 毛勇 , 边力 , 王军 . 室内环境下日本囊对虾2种形态变异类型群体生长特性比较研究[J]. 热带海洋学报, 2014 , 33(4) : 51 -60 . DOI: 10.11978/j.issn.1009-5470.2014.04.007
The kuruma shrimp Marsupenaeus japonicus is widely distributed throughout the Indo-West Paci?c. Two morphologically similar varieties I and II were recognized along the coast of China. The growth characteristics were studied on the basis of the successive data of body length and body weight of Marsupenaeus japonicus cultured in indoor cultivation environment. The results showed that the relationships between body length and body weight can be described by the power functions as follows: VarietyⅠ(♀): W=0.013×L2.973, VarietyⅠ(♂): W=0.013×L2.960, VarietyⅡ(♀): W=0.009×L3.103, VarietyⅡ(♂): W=0.009×L3.120, where the value b in W=a×Lb was all close to 3, indicating an isometric growth. The von Bertallanffy equations were expressed as follows: VarietyⅠ(♀): Lt=15.932× [1-e-0.0067(t-26.5055)], Wt=48.798×[1-e-0.0067(t-26.5055)]2.973; VarietyⅠ(♂): Lt=13.642×[1-e-0.0091(t-35.0053)], Wt=30.437×[1-e-0.0091(t-35.0053)]2.969; VarietyⅡ(♀): Lt=13.865×[1-e-0.0077(t-22.8107)], Wt=31.449× [1-e-0.0077(t-22.8107)]3.103; VarietyⅡ(♂): Lt=12.094×[1-e-0.0102(t-32.6776)], Wt=21.470×[1-e-0.0102(t-32.6776)]3.120. Further analysis of their asymptotic values of body length, body weight and longevity showed that the female was higher than male and that VarietyⅠwas higher than VarietyⅡ.
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