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严太明,刘小帅,杨淞,杨世勇,何智.2014.重口裂腹鱼鳞片发育和覆盖过程研究.动物学杂志,49(3):391-398.
重口裂腹鱼鳞片发育和覆盖过程研究
Scale Development and Squamation Chronology for Davids’s Schizothoracin (Schizothorax Davidi)
投稿时间:2013-08-12  修订日期:2014-05-15
DOI:10.13859/j.cjz.201403011
中文关键词:  重口裂腹鱼  鳞片发育  鳞片覆盖
英文关键词:Schizothorax davidi  Scale development  squamation chronology
基金项目:农业部淡水鱼类种质资源与生物技术重点开放实验室开放课题(No. LFB20070609)
作者单位E-mail
严太明 四川农业大学 yantaiming@sina.com 
刘小帅 四川农业大学  
杨淞 四川农业大学  
杨世勇 四川农业大学  
何智 四川农业大学 hezhisicau@hotmail.com 
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中文摘要:
      为探讨重口裂腹鱼鳞片发育规律,本文采用茜素红饱和中性水溶液染色法和组织学方法观察了实验室养殖的重口裂腹鱼稚鱼鳞片发生和覆盖过程。结果表明,重口裂腹鱼鳞片开始发生和覆盖完成的时间分别为出膜后第62 d和110 d,日龄对鳞片覆盖影响显著(P<0.01)。鳞片覆盖过程中共有鳃盖后缘侧线处、尾柄中部侧线处、臀鳍基部、腹鳍基部、背鳍基部前缘和峡部等6个鳞片发生起始位置,分别于出膜后第62 d、71 d、79 d、83 d、91 d和104 d出现。组织学观察结果表明,鳞片发育主要经历了形态发生早期、形态发生晚期、分化早期、分化晚期和鳞片折叠期五个阶段。这些研究结果丰富了重口裂腹鱼早期发育生物学资料,有助于了解其在系统学和功能形态学特征。
英文摘要:
      Scale morphology, growth and squamation chronology were described for the Schizothorax davidi reared in the laboratory. The results showed that the onset and completion of scale formation occurred at 62 and 110 days post hatching (dph), respectively, and the scale appearance was related to age. The onset of six locations of scale development, which were the lateral line near the posterior border of gill cover, the lateral line near the middle of caudal peduncle, the base of anal fin, the base of pelvic fin, the base of dorsal fin, and isthmus, occurred at 62, 71, 79, 83, 91 and 104 dph, respectively. Furthermore, the results of the histological observation revealed that five steps can be distinguished in the scale formation and development: early morphogenesis, late morphogenesis, early differentiation, late differentiation and scale fold. In addition, the pattern of scale formation may be useful in enhancing understanding of systematics, functional morphology and habitat use.
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