Principal component analysis on the morphology of ten Eriocheir japonica populations and E.sinensis
GAO Tian-xiang1, ZHANG Xiu-mei1, LIU Guang-dong1, WATANABE Sei-ichi2
1.Fishery College,Ocean University of China,Qingdao 266003, China;2.Department of Aquatic Biosciences, Tokyo University of Fisheries, Tokyo 108-8477, Japan
Abstract: Morphological metrical characters of ten Japanese mitten crab (Eriocheir japonica) populations collected from Japan and one Chinese mitten crab (E.sinensis) from Shanghai were described and compared using morphological method. The principal component analysis results indicated that there were great similarities among the Japanese mitten crab populations except in two Okinawa populations, which supported the standpoint that there was only small genetic differentiation among the Japanese mitten crab populations. Okinawa populations were different from others due to the geographic and water temperature isolation. The significant differences between Japanese and Chinese mitten crabs resulted in two large groups.
高天翔, 张秀梅, 柳广东, 渡边精一. 10个日本绒螯蟹群体与中华绒螯蟹形态的主成分分析[J]. 大连海洋大学学报, 2003, 18(4): 273-277.
GAO Tian-xiang, ZHANG Xiu-mei, LIU Guang-dong, WATANABE Sei-ichi. Principal component analysis on the morphology of ten Eriocheir japonica populations and E.sinensis. Journal of Dalian Ocean University, 2003, 18(4): 273-277.