| 沱江流域宽体沙鳅的胚胎发育,封二 |
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| 引用本文： | 岳兴建,王芳,谢碧文,齐泽民,王淯,何斌,陈先均.沱江流域宽体沙鳅的胚胎发育,封二[J].四川动物,2011,30(3). |
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| 作者姓名： | 岳兴建 王芳 谢碧文 齐泽民 王淯 何斌 陈先均 |
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| 作者单位： | 1. 内江师范学院生命科学学院,特色农业资源研究与利用四川省高校重点实验室,四川内江,641000
2. 四川省农业科学院水产研究所,四川宜宾,644002 |
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| 基金项目： | 四川省教育厅重大培育项目，内江市科技支撑计划项目，内江师范学院生态学重点建设学科基金，四川省教育厅科技创新科研团队基金 |
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| 摘 要： | 通过人工授精获得受精卵,利用数码显微镜进行连续观察和拍照记录,对沱江宽体沙鳅胚胎发育特征进行了详细观察和描述,并确定了到达各发育期所需的时间.成熟卵直径为0.9～1.1 mm.受精卵卵膜吸水膨胀之后直径为1.6～1.9 mm,半漂流性.卵膜直径较小是区分宽体沙鳅和其他鳅科漂流性鱼卵的标志性特征.水温23℃±0.5℃,受精卵历时27 h孵出.胚胎发育过程可划分为7个阶段、28个发育期.初孵仔鱼全长约为3.5～3.8 mm.建议水利工程规划及建设中应该保留满足漂流性卵胚胎发育的足够长的天然河段.
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| 关 键 词： | 宽体沙鳅 胚胎发育 |
Embryonic Development of Botia reevesae in Tuojiang River |
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| YUE Xing-jian,WANG Fang,XIE Bi-wen,QI Ze-min,WANG Yu,HE Bin,CHEN Xian-jun.Embryonic Development of Botia reevesae in Tuojiang River[J].Sichuan Journal of Zoology,2011,30(3). |
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| Authors: | YUE Xing-jian WANG Fang XIE Bi-wen QI Ze-min WANG Yu HE Bin CHEN Xian-jun |
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| Institution: | YUE Xing-jian1,WANG Fang1,XIE Bi-wen1,QI Ze-min1,WANG Yu1,HE Bin2,CHEN Xian-jun2 (1.School of Chemistry and Life Science,Neijiang Normal University,Key Laboratory of Regional Characteristic Agricultural Resources,Department of Education,Neijiang,Sichuan Province 641000,China,2.Fisheries Institute of Sichuan Academy of Agricultural Sciences,Yibin,Sichuan Province 644002,China) |
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| Abstract: | The embryonic development of Botia reevesae,lives in Tuojiang River,a tributary river of the Yangtse River,was observed and the morphological features and time of the development phases were described in detail under a microscope with digital camera.The diameter of the fertilized egg ranges from 0.9 mm to 1.1 mm and the egg membrane expanded ranging from 1.6 mm to 1.9 mm after the egg absorption of water.The eggs drift in flowing water.The distinctive feature of B.reevesae eggs is that the diameter of expan... |
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| Keywords: | Botia reevesae embryonic development |
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