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摘要:
本文对鳅科鱼类(泥鳅)进行研究结果表明:标志着泥鳅鳞片上的年轮是一种由数条(1—3条)环沟(circular grooves)组成的亮环(translucent circule)和从亮环上辐射出的各级鳞沟(scale grooves)为标志的。这种年轮标志的形成时期,是集中在4—9月。
关键词:泥鳅,年轮,鳞沟,环沟,亮环
Abstract:
We have attmpted the age-determination of the Loach (Misgurnus anguillicaudatus) by investigating the difference betwen circular grooves and scale grooves from the focus to the periptery of the scale.Our results show that there are noticeable markings bet
