Abstract

The mass of pharyngeal teeth (pharyngeal jaws with teeth located on them) and its proportion of the total body mass of the roach Rutilus rutilus (Linnaeus, 1758) with different feed types in the Rybinsk Reservoir have been analyzed. It is ascertained that the proportion of pharyngeal tooth mass tends to increase significantly as the fish body length increases from 170 to 200 mm, body mass from 90 to 200 g, and the age from 5 to 7 years. This parameter for the analyzed specimens does not depend on the number of teeth on the pharyngeal jaws. The absolute and relative masses of pharyngeal teeth are not associated with genetic traits such as the number of vertebrae in the vertebral column and its sections. However, fish with a high relative mass of pharyngeal teeth are characterized by higher phenetic diversity in the number of phenotypes in the vertebral column.

中文翻译：

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util鹦鹉的咽部牙齿相对质量：与鱼生物学参数和遗传性状的关系。

摘要

咽齿（咽齿上有牙齿的颌骨）的质量及其在蟑螂（Rutilus rut​​ilus）总体重中的比例（Linnaeus，1758）在雷宾斯克水库中使用了不同的饲料类型。可以确定，随着鱼的体长从170到200 mm，体重从90到200 g，年龄从5到7岁，咽齿质量的比例会显着增加。所分析标本的该参数不取决于咽颌上的牙齿数量。咽部牙齿的绝对质量和相对质量与遗传特性（例如，在椎骨柱及其节段中的椎骨数量）不相关。但是，咽齿相对质量较高的鱼，其特征在于椎柱表型数量上的表型多样性较高。