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Variation of Multivariate Allometry for Sword Prawn (Parapenaeopsis hardwickii) in the East China Sea and Taiwan Strait

東海及台灣海峽產劍蝦之多變量異速成長變異

摘要


估計及比較來自於東海北部(NECS02)及淡水(Tamsui10)、台中(Taichung11和Taichung02)和茄定外海(Cheding02)等4個水域5個雌性劍蝦樣本之多變量異速成長係數。每個體量測12個外部形質,將所得之資料經對數轉換,計算其共變方矩陣,經主成份分析所得之第一特徵向量即為多變量異速成長係數。利用兩兩第一主成份向量間之角度資料,建構5樣本之表型圖,另利用置換排列分析法,檢定兩多變量異速成長係數間是否有顯著差異。表型圖顯示,5樣本可分為3群:群1含NECS02,群2含TAMSUI10和Taichung11,群3含Taichung02和chedig02樣本。置換排列分析法檢定顯示,群內任一配對的多變量異成長係數間沒有顯著差異,但群間任一配對的多變量異成長係數間皆有顯著差異。因此,我們判定本研究水域產之劍蝦中具有三種不同多變量異速成長的型態。

關鍵字

劍蝦 異速成長 東海 台灣海峽

並列摘要


Multivariate allometric coefficients were estimated and compared for five female sword prawn (Parapenaeopsis hardwickii) samples collected separately from the north of East China Sea (NECS02) and the waters off Tamsui (Tamsui10), Taichung (Taichung11 and Taichung02), and Cheding (Cheding02). Twelve measurements were measured for each individual. The 1st eigenvector obtained from the covariance matrix of log-transformed data was used to represent the multivariate allometric coefficients. The dendrogram of five samples was constructed by using the angles between five 1st eigenvectors, and a permutation test was used to test if the difference between two multivariate allometric coefficients obtained from different samples/groups was significant. Five samples were clustered into three distinct groups, the group 1 included NECS02, the group 2 included Tamsui10 and Taichung11, and the group 3 included Taichung02 and Cheding02 samples. Permutation tests indicated that the difference of each within group pairwised multivariate allometric coefficients is not significant and of each between groups pairwised multivariate allometric coefficients is significant. Therefore, we concluded that there are three different multivariate allometric patterns for sword prawns from these studied waters.

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