文献类型：期刊文章

作　　者：袁伦强[1] 谢小军[1] 曹振东[2] 罗毅平[1]

机构地区：[1]西南师范大学水产科学研究所,重庆400715 [2]重庆师范大学生物系,重庆400047

出　　处：《动物学报》

基　　金：国家自然科学基金项目(No.30371121);重庆市科委攻关项目(No.20027378)~~

年　　份：2005

卷　　号：51

期　　号：4

起止页码：753-757

语　　种：中文

收录情况：BDHX、BDHX2004、BIOSISPREVIEWS、CAB、CAS、CSA-PROQEUST、CSCD、CSCD2011_2012、DOAJ、EBSCO、IC、JST、PROQUEST、PUBMED、SCIE、SCOPUS、WOS、ZGKJHX、ZR、核心刊

摘　　要：The eggs of Pelteobagrus vachelli were fertilized artificially at 23℃,from parental fish collected in the Jialing River,on May 23,2004.The embryonic development was observed at nine experimental temperatures,i.e.eight constant temperatures(17,19,21,23,25,27,29 and 31℃)and a varying temperature(from the blastoderm to the blastula stage at 23℃,from gastrulae to the neural plate stage at 25℃,from organogenesis to hatching at 27℃).The results showed that the hatching rate,incubation duration and survival rate in each developmental stage changed significantly with temperature.At 17℃,the fertilized eggs did not develop,and all of them died.Hatching rate increased with temperature from 19 to 25℃,then decreased with as temperatures rose further from 27 to 31℃.Hatching rate was highest(76.92%±1.07%)at 25℃.At the different constant temperatures,the best survival rates in the three stages of blastodem-blastula,gastrulae-neural plate and organogenesis-hatching were obtained at 23,25 and 27℃,respectively.The hatching rate(93.69%±0.57%)with the varying temperature regime was significantly higher than those at each constant temperature,while its incubation duration and accumulated temperature were close to those at the constant 25℃.The results showed that the embryos could develop adequately with temperature of 21-29℃ and optimally at 25℃ in constant temperature regimes.

关 键 词：瓦氏黄颡鱼 水温  胚眙发育  存活率  孵化率 孵化历时  胚胎发育过程 温度因子  鱼类繁殖 生物学参数

分 类 号：Q954.4]