用扫描电镜对唇鳃成熟卵子及早期精子人卵过程进行观察。结果显示，唇鲋成熟卵子在动物极中央有一深凹陷的表面光滑的精孔器，其外径2．5......

Fry rearing is one of the important stage which aims at obtaining high growth and survival for production of fingerlings......

Unwarranted accumulation of halogenated compounds in the rivers and streams has in recent years emerged due to the wides......