仔鱼,别称凤尾鱼,俗称“子鲚”,学名“凤鲚”,属名贵的经济鱼类,因其尾部分叉形状像凤凰的尾巴,短呈红色,尖细窄长,犹如凤尾,故称。仔鱼是一种洄游性小型鱼类,平时多栖息于外海,每年春末夏初则成群由海入江,在中下游的淡水入口处作产卵回游。仔鱼分布在圭亚那、东海和南海等地。
The noticeable amylase activity was present during the early stage of larvae and decreased significantly after 5 days old, from then on, it always kept a low relative activity.
早期仔鱼体内表现出较强的淀粉酶活性,5日龄时其活性急居下降,并一直保持较低的比活力水平。
参考来源 - 大菱鲆不同发育阶段消化生理的研究The lowest of specific growth rates of fry were at late larva stage(3.18%/d)and the highest at mid juvenile stage(13.31%/d).
鱼苗在后期仔鱼阶段特定生长率最低,为3.18%/d,中期稚鱼阶段最高,达13.31%/d。
参考来源 - 菊黄东方鲀仔稚鱼的生长、发育及行为生态Newly hatched larvae have a total length of 4.6-5.2mm with about 32-35 myomeres.
初孵仔鱼全长4.6-5.2mm,肌节32-35对。
参考来源 - 大眼鳜的卵子发生及早期发育·2,447,543篇论文数据,部分数据来源于NoteExpress
另一个担忧是有些鱼类的鱼卵和仔鱼可能无法在酸性较强的水里存活,像乌贼那种需要大量氧气的生物也会死亡。
Another worry is that the eggs and larvae of some fish may be unable to survive in more acidic water, and that creatures like squid which need a lot of oxygen will also die out.
报道了松潘裸鲤的胚胎发育和胚后仔鱼发育的各期形态特征及发育特点。
This paper reports the morphological features and development characteristics of Gymnocypris potanini during its embryonic and post-embryonic stages.
马面鲀仔鱼基本沿涡旋周围的海流逐步向东北方向漂移。
The larvae of filefish basically drift along the current around the eddy towards northeast gradually.
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