【摘要】 太湖短吻银鱼Neosalanx tangkahkeii taihuensis Chen是太湖中的重要经济鱼类之一。为了探索这一银鱼秋季能否产卵和孵出仔鱼,作者曾于1975年秋季在太湖进行人工授精和孵化实验研究。结果共孵出仔鱼543尾;此外,还固定了各胚胎时期的发育卵465粒。 通过孵化材料,联系到亲鱼在生殖时期需要得到保护,因而建议每年10月8日至24日限制或禁止使用银鱼渔具捕捞,使之能够正常产卵,以达到天然鱼类的增殖和合理利用银鱼资源的目的。更多还原

【Abstract】 The short-snout ice--fish, Neosalanx tangkahkeii taihuensis Chen, is one of commer- cial fishes in lake Taihu. In the autumn of 1975 we carried out experiments in artificialfertilization and hatching of the fish in Taihu. As a result, we obtained 543 prelarvaeand 465 samples of the developing eggs. According to our experimental studies, it is proposed that the period from Octo-ber eighth to twenty--fourth may best be set as a prohibited period of fishing in order toprotect this fishery resource.更多还原