首页> 外文期刊>Journal of Ichthyology >Variation of Otolith Structure in Amur Sleeper Perccottus glenii (Odontobutidae) Populations from Central Russia
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Variation of Otolith Structure in Amur Sleeper Perccottus glenii (Odontobutidae) Populations from Central Russia

机译:俄罗斯中部欧洲睡眠鲈鱼植物(Odontbutidae)种群的欧尔卧式结构的变异

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摘要

Development of annual increments on the otoliths (sagittae) of Amur sleeper Perccottus glenii, as well as the sagitta shape and bilateral asymmetry, is analyzed in the populations from four water bodies of Central Russia: (1) the lake near Maslovka village (Nizhny Novgorod oblast), (2) Sima Pit, (3) Upper Sharapovskii Pit, and (4) Lower Sharapovskii Pit (Moscow oblast). The diameter (along the dorsoventral axis) of the first annual zone is 0.8-1.5 mm. The highest growth rate (29 mm per year on average) and the largest individuals (up to 245 mm TL) are registered in population one. Based on two sagitta shape indices (height to length ratio and ellipticity), a directed bilateral asymmetry is observed in population one. Based on the variation of fluctuated asymmetry, distinct differences between the populations are absent. The elliptic Fourier analysis shows that population one differs from populations two, three, and four in sagitta shape. A small interpopulation variation of sagitta morphology is revealed.
机译:在俄罗斯中部四个水体的群体中分析了Amure Sleeper Perccottus Glenii的欧洲卧式(Sagittae)的年增长率(Sagittae),以及射手形状和双侧不对称,在俄罗斯四个水体(1)湖附近的湖泊(1)位于Maslovka Village(Nizhny Novgorod)附近oblast),(2)Sima Pit,(3)上莎拉普夫斯基坑,(4)下莎拉普斯基坑(莫斯科州)。第一年度区域的直径(沿着多叶轴)为0.8-1.5毫米。最高的增长率(平均每年29毫米)和最大的个人(最多245毫米TL)在人口中登记。基于两个射线形状指数(高度与长度比和椭圆形),在人口中观察到指向的双侧不对称性。基于波动不对称的变化,不存在群体之间的不同差异。椭圆形傅立叶分析表明,人口与群体中的群体不同,三个,三,三,四个不同。揭示了SAGITTA形态的小流动变异。

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