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本文通过对厦门海区文昌鱼性腺发育的周年观察,测定成熟系数以及年龄和性腺发育的关系.作者认为厦门文昌鱼生殖季节为5月上旬—7月,6月为生殖旺季.文昌鱼种群在海区的性腺发育是不同步的,但卵母细胞从大生长期以后的发育则是同步的,属一次性产卵或释精,其后性腺消失.每尾成年文昌鱼一年只生殖一次.当年生文昌鱼,翌年性腺即可成熟,4龄文昌鱼仍有生殖能力.最后,文中讨论了水温与文昌鱼性腺发育的相互关系.
In this paper, by the annual observation of the gonadal development of amphioxus in Xiamen sea area, the relationship between maturity coefficient and age and gonadal development was determined.The reproductive season of amphioxus was considered as the reproductive season in early May, July and June, Gonadal development is not synchronized, but the development of oocytes from the large growth period is synchronized, is a one-time spawning or semen, followed by the disappearance of the gonads. Each adult adult amphibian only reproductive time once a year. Amphioxus, the next year can be mature gonads, 4-year-old amphioxus still have reproductive capacity.Finally, the paper discussed the relationship between water temperature and amphioxus gonadal development.