摘要
为了确定斑点鳟（Oncorhynchus mykiss）发眼卵孵化的适宜温度、盐度条件,作者通过设置不同的孵化温度和盐度,研究了温度、盐度对斑点鳟发眼卵孵化的影响。结果表明,发眼卵孵化的适宜温度范围为8～16℃,孵化率都在（73.33±2.04）%以上,最适温度为10℃,孵化率达（87.77±1.23）%。温度高于24℃时发眼卵不能孵化。温度在6～22℃内,斑点鳟发眼卵孵化时间与温度成负相关关系。斑点鳟胚胎发育的平均积温值为343℃？d。发眼卵孵化的适宜盐度范围为0～15,孵化率都在（85.33±1.92）%以上,最适盐度为0,孵化率达（97±1.13）%。盐度高于15时的孵化率为0。盐度在0～15内,发眼卵孵化时间与盐度成正相关关系。
In order to determine the suitable temperature and salinity for eyed eggs of Oncorhynchus mykiss, we studied the effect of temperature and salinity on the hatching of eyed eggs by setting different temperatures and salinities. The results showed that the suitable temperature range for hatching was 8-16℃ with hatching rate higer than （73.33±2.04）%. The most suitable temperature was 10~C with a high hatching rate of （87.77~1.23）%. The eyed eggs didn＇t hatch when the temperature was higher than 24~C. In the temperature range of 6-22 ~C, there was a negative correlation between the hatching time and temperature. The average accumulated temperature for embryo development was 343 ℃·d. The suitable salinity range for hatching was 0-15 with hatching rate higher than （85.33±1.92）%. The most suitable salinity was 0 with a high hatching rate of （97±1.13）%. The hatching rate was 0 when the salinity was more than 15. In the salinity range of 0-15, there was a positive correlation between the hatching time and salinity.
出处
《海洋科学》
CAS
CSCD
北大核心
2014年第9期47-52,共6页
Marine Sciences
基金
山东省农业重大应用技术创新课题资助项目
青岛市关键技术攻关计划项目(12-4-1-56-hy)
