| 犬齿牙鲆胚胎及仔、稚、幼鱼形态发育观察 |
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| 引用本文： | 陈朴贤.犬齿牙鲆胚胎及仔、稚、幼鱼形态发育观察[J].海洋科学,2012,36(6):64-71. |
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| 作者姓名： | 陈朴贤 |
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| 作者单位： | 福建省水产研究所,福建厦门361012 |
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| 基金项目： | 福建省科技厅重点资助项目(2007N0015) |
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| 摘 要： | 犬齿牙鲆(Paralichthys dentatus)卵为端黄卵,受精卵浮性,卵径950~1100μm,油球径200~225μm.在水温20.5~22.0℃,盐度33条件下培育,受精后1 h 20 min 进入卵裂期,6 h 10 min 进入囊胚期,11 h 20 min 进入原肠胚期,19 h 10 min 发育到胚孔封闭期,胚体形成,26 h 50 min 尾芽出现,33 h 35 min心跳开始,48 h 10 min 开始孵化出仔鱼.初孵仔鱼平均全长2.59 mm±0.02 mm,在培育水温为17.0~21.0℃,盐度24~34条件下,胚后发育时序为:1日龄~9日龄为仔鱼前期,10日龄平均全长5.52 mm±0.05 mm,卵黄囊和油球完全吸收进入仔鱼后期;40日龄平均全长20.82 mm±0.67 mm,各鳍鳍条发育形成进入稚鱼期;65日龄平均全长41.13 mm±0.88 mm,全身鳞被完整进入幼鱼早期
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| 关 键 词： | 犬齿牙鲆(Paralichthys dentatus) 胚胎发育 仔稚幼鱼 形态发育 |
| 收稿时间： | 2010/10/28 0:00:00 |
| 修稿时间： | 2010/12/24 0:00:00 |
Embryonic and larval morphological development of Paralichthys dentatus |
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| CHEN Pu-xian.Embryonic and larval morphological development of Paralichthys dentatus[J].Marine Sciences,2012,36(6):64-71. |
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| Authors: | CHEN Pu-xian |
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| Institution: | CHEN Pu-xian(Fujian Fisheries Research,Xiamen 361012,China) |
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| Abstract: | The eggs of summer flounder were telolecithal egg,and fertilized eggs were buoyant.The average diameter of eggs was 950~1 100 μm.Radius of oil globule was 200~225 μm.The egg was hatched at water temperature 20.5~22.0℃ and salinity 33.The embryos entered cleavage stage by 1 h 20 min after fertilization,entered the blastula stage by 6 h 10 min,entered the gastrula stage by 11h 20min,developed into the blastopore closure stage,embryo was formed.Tail bud appeared by 26h 50min,the heart beat began by 33 h 35 min,and larvae were hatched by 48 h 10 min.The average length of newly hatched larva was 2.59 mm±0.2 mm.At the cultivation temperature of 17~21℃,salinity 24~34,the postembryonic development timing sequence was: the fish of 1 day to 9 days after hatching were prelarva.The average length of 10 days fish was 5.52 mm±0.05 mm,yolk sac and oil globule were absorbed completely,and the fish entered the postlarvae stage.The average length of 40 days fish was 20.82 mm±0.67 mm,fin rays form,the fish entered the larval stage.The average length of 65 days fish was 41.13 mm±0.88 mm,the whole lodicules developed completely,the fish entered early juvenile stage. |
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| Keywords: | Paralichthys dentatus embryonic development larval morphological development |
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