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中文摘要：
利用9个耳石形状指标：圆度、形态因子、环率、矩形趋近率、椭圆率、半径比、Feret比、幅形比、面密度对中国近海8个许氏平鲉（Sebastes schlegelii）群体共228尾个体的耳石形态进行单因子方差分析、判别分析、主成分分析等多元统计分析，并与傅里叶分析结果进行比较。单因子方差分析结果显示，丹东群体和日照群体的9个指标存在显著差异。
英文摘要：
Nine otolith shape indices （surface density, format factor, radius ratio, aspect ratio, elliptici- ty, rectangularity, Feret ratio, circularity and roundness） of 228 individuals from 8 offshore Sebastes schlegelii popuiations of China were statistically analyzed in this study. One way analysis of variance dem- onstrated 9 shape indices were significantly different between Dandong and Rizhao populations and be- tween Rongcheng and Jiaonan, Qingdao and Rushan populations, while insignificant differences were found between Rushan and Jiaonan in their 9 otolith shape indices （P〈0. 05）. The first two principal components explained 72.0% of the total variation. Discrimination analysis demonstrated the correctness reached 64. 9% in determining the source population of individuals with 9 shape indices, which was 21. 1% higher than 43. 8% obtained with Fourier analysis. Nine principal components explained 89.2% of morphological variation of otolith. As were demonstrated in these analyses, the otolith of S. schlegelii from 8 affshore populations of China was morphologically similar with each other.
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