根据拟穴青蟹卵巢发育的形态学及卵巢内部组织学的特点，将雌性青蟹的卵巢发育分为六个时期：卵巢Ⅰ期，为未交配的雌蟹；交配后，根据卵黄发生情况将青蟹卵巢发育分为Ⅱ、Ⅲ、Ⅳ、Ⅴ期，产卵后的卵巢为Ⅵ期。其中卵巢Ⅰ，卵原细胞大量增殖；卵巢Ⅱ期，滤泡细胞大而圆，卵原细胞转化成卵母细胞，为卵黄发生前期；卵巢Ⅲ期时，滤泡细胞开始变得扁平，卵母细胞开始出现卵黄颗粒，为卵黄发生Ⅰ期；卵巢Ⅳ期，滤泡细胞狭长，在晚期阶段卵黄积累近结束，为卵黄发生Ⅱ期；卵巢Ⅴ期时，滤泡细胞变成膜状，与卵子成熟有关。在卵巢发育尤其卵黄发生过程中卵母细胞直径和卵巢指数显著增大，而肝胰腺指数则显著减小，暗示着肝胰腺向卵巢的物质转移，很有可能是...Ovarian development in adult Scylla paramamosain was determined based on gross morphology and histological appearance. Ovary maturation was classified into six stages：ovary stage Ⅰ, unmated female crab, oogonia profiled; after mated,ovary stage Ⅱ , Ⅲ , Ⅳ , Ⅴ were determined according to the situation of vitellogenesis；ovary stage Ⅵ was after ovulation. In stageⅠ and Ⅱ,ovary was prepared for vitell...学位：理学硕士院系专业：海洋与环境学院海洋学系_海洋生物学学号：2242006115231
