大鳞副泥鳅和泥鳅性周期研究

大鳞副泥鳅和泥鳅性周期研究 STUDY ON SEXUAL CYCLE OF PARAMISGURNUS DABRYANUS SAUVAGE AND MISGURNUS ANGUILLICAUDATUS 胡红 1 first-author 武汉大学生物学系 中国水产科学研究院珠江水产研究所 武汉大学生物学系 中国水产科学研究院珠江水产研究所 用石蜡切片的方法,分析了两种泥鳅的性腺发育周期。大鳞副泥鳅在春季3月初开始产卵,产卵后卵巢回到Ⅳ期,接着又发育至Ⅴ期,继续产卵,重复多次产卵可以持续到10月份为止,至当年冬季12月又可产卵一次。泥鳅是4月份开始产卵,每次产卵均为一次产完。产完后卵巢回复到Ⅱ期,直至9月为止,11月到次年1月也有一次产卵。大鳞副泥鳅精巢2月份就可以成熟,而泥鳅是3月份成熟。 The sexual gland development and seasonal changes of Paramisgurnus da- bryanus, Sauvage and Misgurnus anguillicaudatus have been researched with the techniques of paraffin section. The results indicate that Paramisgurnus dabryanus Sauvage begins spawning in early March till October. After spawn- ing, the ovary returns to Ⅳ stage, and may spawn in December again. Misgur- nus anguillicaudatus begins spawning in early April till September, and spawns all the eggs in one time. After spawning, the ovary returns to Ⅲ stage and from November to next January it spawns again. The study about testis of Paramisgurnus dabryanus Sauvage and Misgur- nus anguillicaudatus shows that testis maturation of Paramisgurnus dabryanus Sauvage is in February and that of Misgurnus anguillicaudatus is in March. 大鳞副泥鳅 泥鳅 性周期 卵巢 精巢 Pauamisgurnus dabryanus Sauvage Misgurnus anguillicaudatus sexual cycle ovary testis Q953.3;Q959.46 1992-03-01 2021-04-01 3