卵胎生硬骨鱼褐菖鱼由胚胎及仔鱼的发育  

Embryonic and larval development of ovoviviparous teleost, Sebastiscus marmoratus

作　　者：林丹军[1] 尤永隆[1] 

机构地区：[1]福建师范大学生物工程学院,福建福州350007

出　　处：《台湾海峡》2002年第1期45-52,共8页Journal of Oceanography In Taiwan Strait

摘　　要：褐菖鱼由(Sebastiscusmarmoratus)胚胎和早期仔鱼在卵巢中发育 .胚胎发育的营养靠自身卵黄提供 .定期从褐菖鱼由雌鱼体内取出正在发育的胚胎或仔鱼 ,结合体外培育方法观察胚胎及仔鱼的发育特点 .从受精卵发育至孵化 ,胚胎发育期可划分为 1 8期 .仔鱼孵出后继续在母体卵巢腔内发育 ,直至仔鱼开口后离开母体 .因此 ,雌鱼怀胎期长达 1 2d[(1 5± 1 )℃ ].产出的仔鱼大部分器官已建成 ,卵黄囊即将耗尽 ,不久开始摄食 .实验表明 ,胚胎和仔鱼在体外培育可以正常发育 ,在不同的水温条件下发育速度差异较大 .Sebastiscus marmoratus' embryos and early larvae develop in ovary.They must rely on the yolk of egg for nutrition. In this paper, the developing embryos or larvae are taken from female body periodically, and the embryonic and larval development is observed as they are cultured in vitro. In the period from multicellular stage to incubation stage, the embryonic development can be divided into 18 stages. After hatching, larvae go on developing in ovarian cavity until mouth opens. Then they are born from female body. The gestation period lasts at least for 12d . At birth, most organs are formed in the young. Yolk sac will be resorded soon. After a short period, the young starts feeding. In vitro culture, embryos and larvae can develop normally. Under different temperature, duration of development differs greatly.

关 键 词：褐菖YOU 卵胎生 胚胎 仔鱼 发育 卵巢 生殖期 受精卵 水温条件 

分 类 号：S965.3[农业科学—水产养殖] Q959.499[农业科学—水产科学]