大黄鱼性早熟问题的研究I.网箱养殖鱼性腺发育状况  

Study on earlier gonadal maturation in cultured large yellow croaker, Pseudosciaena crocea Ⅰ.Status of gonadal development in culture of net cages

作　　者：方永强[1] 翁幼竹[1] 周晶[1] 刘家富 谢芳靖 陈慧娟 

机构地区：[1]国家海洋局第三海洋研究所,厦门361005 [2]宁德地区水产技术推广站养殖试验场,宁德352100

出　　处：《台湾海峡》2000年第3期354-359,共6页Journal of Oceanography In Taiwan Strait

基　　金：国家863资助课题!(819-02-012号)

摘　　要：用组织学方法研究了网箱养殖大黄鱼性腺发育的状况。结果表明 ,在所研究的 10个网箱 (养殖期 1a)中 ,其中 6个网箱各有少数大黄鱼卵巢进入大生长期 ,卵母细胞胞质出现卵黄颗粒 ,其余网箱大黄鱼处于小生长期。在雄性 ,全部网箱大黄鱼精巢发育进入Ⅲ～Ⅳ期。根据这些结果 ,我们认为 ,在夏季 7、8月间可能有50 %～ 60 %雌性和 60 %～ 70 %雄性提早性腺成熟。The status of gonadal development of large yellow croakers in the culture of net cages was studied using histological methods. The results indicated that the ovaries of a few large yellow croakers within 6 net cages were developing into large growth stage, and the cytoplasm of oocyte occurred yolk granulars. Another 4 net cages were at ovary of small growth stage. In male, testicular development belonged to stage Ⅲ～Ⅳ in all net cages. According to these results, we suggest that about 50～60 and 60～70 percent earlier gonadal maturation in female and male fish respectively will take up in July and August .

关 键 词：大黄鱼 卵巢 精巢 组织学 性早熟 网箱养殖 发育 

分 类 号：S965.322.1[农业科学—水产养殖]