野生和养殖三疣梭子蟹雌蟹形态学的比较研究  

The Comparative Study of Morphology between Wild-Caught and Pond-Reared Portunus trituberculatus Females

作　　者：郑宽宽 何杰 苏志星 王绪杰 罗佶龙 许文军 ZHENG Kuan-kuan HE Jie SU Zhi-xing et al(Fisheries School of Zhejiang Ocean University, Zhoushan 316022 Marine and Fishery Institute of Zhejiang Ocean Universities, Marine Fisheries Research Institute of Zhejiang Province, Key Laboratory of Maricuhure and Enhancement of Zhejiang Province, Zhoushan 316021, China)

机构地区：[1]浙江海洋大学水产学院,浙江舟山316022 [2]浙江海洋大学海洋与渔业研究所、浙江省海洋水产研究所、浙江省海水增养殖重点实验室,浙江舟山316021

出　　处：《浙江海洋学院学报（自然科学版）》2017年第2期103-108,共6页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：浙江省科技厅计划项目(2016F50042;2015F30003);浙江海洋大学博士启动基金(22135010815);舟山市普陀区科技计划项目(2015YN209)

摘　　要：随机选取30只野生和养殖雌性三疣梭子蟹作为实验材料,采用主成分分析和判别分析方法研究两者形态学性状之间的差异。结果表明:在所涉及的18个形态学性状参数中,有9个形态学比例参数存在显著差异(P<0.05),其中4个存在极显著差异(P<0.01);经主成分分析,提取到的5个特征值均大于1,累计方差贡献率为66.563%。其中PC1的贡献率远高于其它主成分,PC1有10个主要影响变量构成;经逐步判别分析,从18个比例参数中挑选出2个判别贡献较大的变量(A2/L2,C2/L2),建立判别方程,综合判别准确率为86.3%,因此可以根据两者形态学差异和判别方程来鉴别两种蟹的来源。The morphology differences of adult Portunus trituberculatus females from wild-caught and pond-reared were studied by principal component analysis and discriminant analysis.30 females were random-ly sampled from wild-caught populations and pond-reared populations respectively.The results showed that：18 morphological parameters involved,there were significant differences in 9 morphological proportional pa-rameters（P0.05）,and there were extremely significant differences in 4 morphological proportional parameters（P0.01）.After being analyzed by principal component analysis,the accumulative variance percentage of the 5principal components whose eigenvalues were all larger than 1 was 66.563%.PC1 contributed more significant-ly to principal componentanalysis than the other PC,and PC1 consist of 10 main variables.Through discrimi-nant analysis,2 indices（A2/L2,C2/L2） were selected to establish discriminant equation,and the synthetic dis criminan rate is 86.3%.Therefore,the effective identification methods were established based on their mor-phology between wild-caught populations and pond-reared populations.

关 键 词：三疣梭子蟹 形态学 主成分分析 判别方程 

分 类 号：S917.4[农业科学—水产科学]