| 摘要: |
| 研究了人工繁殖时鮸鱼(Miichthys miiuy)胚胎的发育过程。鮸鱼受精卵呈圆球形,浮性,卵径为0.99～1.15 mm,中央大多具有1个油球,少数为2～3个或较多个油球。在水温为24.5～24.7℃,盐度为24的天然海水中,鮸鱼胚胎发育历时约21h 48 min孵化出膜。整个胚胎发育分为5个阶段,共21个发育期。 |
| 关键词: 鮸鱼(Miichthys miiuy) 人工繁殖 胚胎发育 |
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| 基金项目:宁波市科技局项目(2004C100023);宁波大学校学科项目(XK200442,XK200443) |
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| Study on the embryonic development of Miichthys miiuy |
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| Abstract: |
| The embryonic development of Miichthys miiuy is described in this paper. The fertilized eggs are spherical in shape, isolated and buoyant, measuring 0.99～1.15 mm in diameter. Most eggs have one oil globule and a few eggs have 2～3 or more oil globules. The fertilized eggs are hatched out in natural sea water with temperature in about 22 h and salinity of 24.5～24.7℃ and 24 respectively. The embryonic development can be divided into 5 stages 21 phases. |
| Key words: Miichthys miiuy artificial spawning embryonic development |
