【摘要】 <正> 从1973年开始,我们对产后雌鳗再生殖的可能性进行了研究,发现产后亲鳗并不象过去许多人认为的那样必然死亡,恰恰相反,多数能够成活。 1977年以后,我们有意识地用海水和淡水对产后雌鳗进行了饲养,观察并探索其再次繁殖的可能性,得出一些有意义的结果。现报道如下。更多还原

【Abstract】 The gavid eels, after spawning by artificial measure have been reared in fresh, water and sea water of a salinity of 24-30‰ respectively. It has been found that in both cases the spawned eels have gradually resumed their apetite and kept alive for a long time. After a period of two years the corporal condition has been recovered to a state of commencing the descending migration to the sea. Histological examination of the various regions of the alimentary canal has been made and it shows quite normal. The ovary has been investigated histologically and a large number of oocytes in the phase Ⅱ and Ⅲ have developed. All these facts lead us to infer that in the natural condition spawned eels would keep alive and retain their reproductive capacity.更多还原