摘要
观察了不同温度条件下(20、23、26、29、32℃)黄鳍东方鲀受精卵的培育周期、孵化周期、孵化率和畸形率;并对黄鳍东方纯初孵仔鱼进行耐饥饿试验,测定其不投饵存活系数。试验结果表明,黄鳍东方纯受精卵孵化的适宜温度为20~26℃(最适温度为23℃);仔鱼生存的适宜温度为20~26℃(最适温度为23℃)。黄鳍东方鲀受精卵和仔鱼对温度这种环境因子的耐受范围基本相同。
The incubation periods, hatching and deformity rates of fertilized eggs and the survival activity index (SAI) of newly hatched larvae of Takifugu xanthopterus were observed at temperatures of 20℃,23℃, 26 ℃ ,29 ℃ and 32 ℃. The results showed that temperature from 20 ℃ to 26℃ is suitable for the incubation of Takifugu xanthopterus, and the optimum is 23 ℃. Temperature from 20℃ to 26℃ is suitable for larval survival, and the optimum is 23 ℃. The fertilized eggs and newly hatched larvae had almost the same tolerant ranges of temperature.
出处
《水产科学》
CAS
北大核心
2008年第5期217-220,共4页
Fisheries Science
基金
广东省科技计如项目(2006B20201058)
广州市高校科技计划项目(2037)
广州市教育局高校校外实习基地资助项目(90-2040)
关键词
黄鳍东方纯
温度
胚胎发育
不投饵存活系数
Takifugu xanthopterus
temperature
embryonic development
Survial actility index (SAI)