厦门皱瘤海鞘性腺发育的组织学研究

Histological study on Gonadal Development of Styela plicata in Xiamen

皱瘤海鞘雌雄同体。性腺组织学观察结果表明，厦门皱瘤海鞘卵巢和精巢发育和成熟可分为5个时期。在同一个体中，卵巢和精巢的发育不同步，因而不发生自体受精。另外，根据性晚发育的季节性观察，皱瘤海鞘常年都可繁殖，但生殖旺季在6月。

It is hermaphroditism in the gonads of Styela plicata. The results from the observation of gonadal histology indicate that the development and maturation of ovary and testis in Xiamen Styela plicata devide into five stages, and the gonadal(ovary and testis) development in each animal ls not synchroncus. Thus, although the gonads of Styela pltcata practice hermaphroditism, then egg and sperm do not self fertilize themselves. In addition, according to the seasonal observation of gonadal development in Styela plicata,its breeding season is about from May to June. The results will provide the basal data for the reproductive biology of Styela plicata and the prevention of its harm.