相同养殖条件下卵形鲳鲹3个选育群体生长特性的比较  

Comparison for the growth of three selective groups of Trachinotus ovatus under the same culture conditions

作　　者：区又君[1] 吉磊[1,2] 李加儿[1] 范春燕[1,2] 王刚[1,2] 

机构地区：[1]农业部南海渔业资源开发利用重点实验室中国水产科学研究院南海水产研究所,广东广州510300 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《应用海洋学学报》2015年第2期177-182,共6页Journal of Applied Oceanography

基　　金：中国水产科学研究院基本科研业务费资助项目(2012A0401;2013A0501)

摘　　要：采用群体选育方法构建了海南、深圳和福建3个卵形鲳鲹（Trachinotus ovatus）选育群体，对选育群体的生长特性和变异程度进行了分析．结果显示，经过人工选择后，各群体生长速度均较对照组有显著提高，海南、深圳、福建群体的特定生长率分别比对照组提高24．06％、7．19％和24．84％；福建群体的绝对增重率和特定生长率比海南群体分别高0．23 g／d 和2．79％，比深圳群体分别高0．49 g／d 和9．41％．在生长早期（2月龄），福建群体体重变异程度最大，深圳群体次之，海南群体变异相对较平稳；群体间变异程度相近时（6月龄），海南群体内的体重分布范围较广（200∽600 g），而福建群体的体重分布较为集中，体重在450～500 g 之间的个体占43．33％．研究表明，福建群体比海南群体和深圳群体具有更好的生长优势，可做进一步选育．Three selective groups of Trachinotus ovatus which were collected form Hainan,Shenzhen and Fujian,re-spectively,had been constructed by population selective breeding and their growth trait and variation were ana-lyzed.The results showed that growth rate in each group was significantly higher than that of control group after multiple selection.The specific growth rates in Hainan,Shenzhen,Fujian group were 24.06%,7.19% and 24.84%,and they were all higher than the control group.The absolute growth rate and specific growth rate in Fu-jian group were 0.23 g/d and 2.79% which were higher than that of Hainan group,respectively,and 0.49 g/d and 9.41% higher than that of Shenzhen group.In the earlier stage,the maximum weight variation was found in Fujian group,followed by Shenzhen group,and that Hainan group was the minimum.With same weight variation （November,2009）,the distribution range of weight in Hainan group was wider （200 -600 g）,and that of Fujian group was concentrate as 43.33% of the later were weighted between 450 g and 500 g.It could be concluded that the Fujian group had a greater growth advantage than Hainan and Shenzhen group.Thus,it can be a good candi-date for further selections.

关 键 词：海洋生物学 卵形鲳鲹 选育群体 生长性状 

分 类 号：P735[天文地球—海洋生物学]