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机构地区:[1]华中农业大学,武汉430070
出 处:《海洋湖沼通报》1995年第2期30-36,共7页Transactions of Oceanology and Limnology
基 金:世界卫生组织和世界银行资助
摘 要:圆尾斗鱼(Macropoduschinensis)的受精卵呈圆球形,光滑,略带淡黄色,浮性;卵膜吸水膨胀后的平均直径为1.19mm。当水温21—23.5℃时,从受精卵到孵化出膜需42.5小时;水温22-24.5℃时,刚出膜仔查到卵黄囊消失需4天,到油球消失约25天。出膜30天仔鱼的形态基本上与成体相似。The fertiiized eggs of AJacropodus chinensis (Bloch) are spheric and yello wishThe average diameter of the eggs which are flaoting after absorbing water is about1.19mm- It takes 42hr from the stage of ferti1ization to the stage in which fryhave just left their eggs under the temperature of 21-23.5℃, and 4 days for thedisappearance of their yolk sacs, 25 days for the disappearance of their oil sphe res at 22-24.5℃. The morph01ogy of the fry having left their eggs for 30 days isvery similiar to that of an adult 。
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