Abstract—

This study is aimed to discriminate Barbus tauricus stocks using otolith shape indices and morphometrics. B. tauricus samples were obtained from some inland waters of Black Sea basin (Streams Akçay, Engiz, Terme, Karadere and Değirmenağzı), and also Luciobarbus sp. samples from Sakarya River were used as an outgroup. Utricular and lagenar otoliths were removed by making left and right distictions. Otolith width, length, perimeter and area were determined by Imaging Software. Power model was applied to estimate the relationships between the otolith measurements and total length. Form Factor, Circularity, Roundness, Rectangularity, Aspect Ratio and Ellipticity were used for otolith shape analyses. A standardized model was used to remove size effect on otolith measurement. Discriminant function analysis were performed to detect differences in otolith shape variations. The discriminant function analysis performed for otolith shape indices and measurements explains the intraspecific variability among localities. According to discriminant function analysis, 75.3% of B. tauricus stocks were correctly classified. The results of this study provide the first comprehensive data regarding the otolith shape analyses and relationship between the otolith morphometrics with total length of Crimean barbel.

中文翻译：

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耳石的形状和特征作为形态学方法鉴定金枪鱼（鲤科）的种群

摘要-

这项研究旨在使用耳石形状指数和形态计量学来区分Barbus tauricus种群。金边芽孢杆菌样品是从黑海盆地的内陆水域（溪流阿克萨伊，恩吉兹，泰尔梅，卡拉德雷和德伊尔梅纳格齐）和Luciobarbus sp。采集的。萨卡里亚河的样本被用作外围样本。通过进行左向和右向的分离来去除子宫和眼耳的耳石。通过成像软件确定耳石的宽度，长度，周长和面积。应用功率模型来估计耳石测量值与总长度之间的关系。形状因子，圆度，圆度，矩形，长宽比和椭圆率用于耳石形状分析。使用标准化模型消除耳石测量的尺寸影响。进行判别函数分析以检测耳石形状变化的差异。对耳石形状指数和测量值进行的判别函数分析说明了部位之间的种内变异性。根据判别功能分析，金黄色葡萄球菌占75.3％股票已正确分类。这项研究的结果提供了有关耳石形状分析和耳石形态学与克里米亚半岛通便的总长度之间关系的第一个综合数据。