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首页> 外文期刊>Journal of Fish Biology >Geographic variation in age, growth and size structure of Percilia irwini from south-central Chile
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Geographic variation in age, growth and size structure of Percilia irwini from south-central Chile

机译:智利中南部Percilia irwini的年龄,生长和大小结构的地理变化

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摘要

Percilia irwini from the AndaliEn and Biobio River basins of south-central Chile exhibited a mean age of 1.4 years with a maximum age of 4 years. Size at age differed among river zones and males were 10% larger than females at all ages. Compared to other locations, populations of P. irwini inhabiting areas subject to industrial and domestic effluents exhibited smaller size structure.
机译:智利中南部的安达利安和比奥比奥河流域的欧云芝(Percilia irwini)平均年龄为1.4岁,最大年龄为4岁。各河区的年龄不同,男性在所有年龄段都比女性大10%。与其他地区相比,受到工业和生活污水污染的欧文氏疟原虫种群规模结构较小。

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