| 黄鲷仔鱼发育的形态特征 |
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| 引用本文： | 钟俊生,夏连军,陆建学.黄鲷仔鱼发育的形态特征[J].上海水产大学学报,2005,14(1):24-29. |
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| 作者姓名： | 钟俊生 夏连军 陆建学 |
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| 作者单位： | 上海水产大学生命科学与技术学院，中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室，中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室 上海 200090，上海 200090，上海 200090 |
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| 基金项目： | 中国水产科学研究院科研基金项目(2001-1-1)，上海市科学技术委员会资助项目(043919348) |
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| 摘 要： | 通过对孵化后第4天至第37天黄鲷仔鱼的观察,研究了各个发育时期的外部形态变化和鳍的发育特征。结果表明:尾部腹面的色素随体长的增加而变化明显。尾柄部背缘出现色素是黄鲷仔鱼的重要特征之一。尾鳍、胸鳍的鳍褶孵化后即出现,分别在26、33日龄出现鳍条;背鳍、臀鳍鳍条在28日龄开始发育,33日龄出现鳍棘;腹鳍在33日龄时出现鳍褶,35日龄出现鳍条。前鳃盖骨后缘下角出现2个扩大且尖锐的棘,是鉴别黄鲷仔鱼的标志之一。人工培育下的黄鲷仔鱼发育较天然水域的个体慢。
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| 关 键 词： | 黄鲷 仔鱼 早期发育 形态特征 |
| 文章编号： | 1004-7271(2005)01-0024-06 |
| 修稿时间： | 2005年1月5日 |
Study on the developmental and morphological characters in Dentex tumifrons larvae |
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| ZHONG Jun-sheng,XIA Lian-jun,LU Jian-xue.Study on the developmental and morphological characters in Dentex tumifrons larvae[J].Journal of Shanghai Fisheries University,2005,14(1):24-29. |
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| Authors: | ZHONG Jun-sheng XIA Lian-jun LU Jian-xue |
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| Institution: | ZHONG Jun-sheng~1,XIA Lian-jun~2,LU Jian-xue~2 |
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| Abstract: | 232 specimens were used to observe larval development and morphology of Dentex tumifrons from 4th to 37th day after hatchery (average 3.1-7.7 mm SL). Morphological characters of fin development and pigmentation were illustrated in detail. The pigmentation appeared at dorsal edge of the tail and the ventral pigmentation developed with growth,which was one of the main characteristics in the larval stage for this species. The caudal and pectoral finfolds were observed after hatchery. Their rays were found on 26th and 33rd day, respectively. The dorsal and anal fin rays were found on 28th day, and their spines were observed on 33rd day. The pelvic finfolds did not appear until the 33rd day and its fins were formed on 35th day. The appearance of 2 large and sharp spines at lower angle of external edge of the preopercle is also the symbol of the larval Dentex tumifrons. The early development of this species reared is slower than that of the ones living in natural waters. |
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| Keywords: | Dentex tumifrons larvae early development morphological characteristics |
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