安徽农业科学

以金沙江一级支流黎明河中野生硬刺裸鲤(Gymnocypris firmispinatus)为对象，采用解剖学和组织学方法研究了硬刺裸鲤性腺发育的组织结构和生殖细胞形态特征。结果显示：金沙江硬刺裸鲤的卵巢和精巢发育均可划分为6个时期。卵巢中的生殖细胞发育经历了卵原细胞、初级卵母细胞、次级卵母细胞和成熟卵子4个阶段；精巢中的生殖细胞发育经历了精原细胞、初级精母细胞、次级精母细胞、精子细胞和精子共5个阶段。根据卵巢中卵母细胞的发育特征和成熟过程，认为金沙江硬刺裸鲤属于完全同步产卵型鱼类。

Morphological and histological of the gonadal development of a naked carp, Gymnocypris firmispinatus which is the endemic species in the Jinsha River, were investigated by anatomical and histological methods. It was found that the development of ovaries and testes of G. firmispinatus can be divided into six developmental phases. The development of germ cells in the ovaries experienced 4 stages: oogonium, primary oocytes, secondary oocytes and mature eggs. Spermatogenesis experienced 5 stages: spermatogonia, primary spermatocytes, secondary spermatocytes, spermatid, and spermatozoa. According to the morphological characteristics and maturation process of oocytes in the ovaries, it is believed that G. firmispinatus in the Jinsha River belongs to the fully synchronous spawning fish.