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研究乌塘鳢年龄的鉴定材料采用胸鳍支鳍骨。结果表明：胸鳍支鳍骨上骨化环的数目与年轮数目相一致，体长频率分布与各年龄组体长分布曲线基本相符。用胸鳍支鳍骨的骨化环来鉴定乌塘鳢的年龄是可信的。
Study on the age of Wu Tang 鉴 identification materials used pectoral fin fins. The results show that the number of ossification rings on the pectoral fin fins is consistent with the number of annual rings, and the distribution of body length and body length are basically consistent with body length distribution curve of each age group. It is plausible to identify the age of Utamayo by the ossification ring of pectoral fin fins.