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Embryonic and Larval Development in Symphysodon aequifasciata
Author(s): XU Ling-ling, SHAO Ling-xiang, XIE Wei, ZHANG Yao-bin
Pages: 125-
129
Year: 2012
Issue:
1
Journal: Journal of Henan Normal University(Natural Science)
Keyword: 七彩神仙鱼; 受精卵; 胚胎发育; 仔鱼发育;
Abstract: 对七彩神仙鱼(Symphysodon aequifasciata)胚胎及仔鱼发育进行了研究,详细描述了发育各期的形态特征和所需时间.结果显示,七彩神仙鱼受精卵为红褐色粘性卵,在(29.0±0.5)℃时,孵化所需时间为52.5 h.初孵仔鱼体长(3.52±0.19)mm,体高(1.27±0.07)mm,身体透明,头部粘附在产卵基上,尾部随着水流颤动.仔鱼出膜5d后亲鱼开始“奶子”,到第13 d基本发...
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