条纹斑竹鲨雌性生殖系统的初步研究  

PRELIMINARY STUDY ON FEMALE REPRODUCTIVE SYSTEM OF Chiloscyllium plagiosum (Bennett)

作　　者：陈明茹[1] 丘书院[1] 杨圣云[1] 苏碧惠[1] 陈丽华[1] 

机构地区：[1]厦门大学海洋学系,361005

出　　处：《海洋科学》2002年第5期52-54,共3页Marine Sciences

基　　金：福建省自然科学基金资助项目9810005号

摘　　要：条纹斑竹鲨为小型体内受精、卵生种类 ,是闽南近海常见鲨类。其雌鱼仅具右侧卵巢 ,呈葡萄状裸露型 ,怀卵量约二三百个 ,卵细胞不同步发育 ,成熟卵径为20～30mm ,卵中含大量卵黄。条纹斑竹鲨卵壳腺的大小随鱼体的生长而增大 ,达到性成熟时约80mm×50mm。卵经过卵壳腺时受精 ,受精卵外被一厚而坚韧的卵鞘 ,为黄褐色。Chiloscyllium plagiosum is a kind of small oviparous shark and can be collected in south of Fujian waters all the year.The female has two ovries:the left one and the right one.And only the right one lays 200～300 eggs at different stages.The Eggs' size at ovulation is 20 ～30 mm in diameter, with rich yolk. The size of the oviducal gland increases as the fish body gets bigger and is about 80 mm×50 mm at the sex mature stage. The ova may be fertilized at oviducal gland and then the thick brown rectangle egg case forms is formed.

关 键 词：条纹斑竹鲨 雌性 生殖系统 

分 类 号：Q959.41[生物学—动物学]