| 摘要: |
| 在室内实验条件下, 采用二因素五水平的正交实验方案, 设置了5 个温度梯度(15、19、23、27、31℃)和5 个盐度梯度(18、22、26、30、34), 研究了温度与盐度对华贵栉孔扇贝幼贝存活与生长的互作效应。结果表明: (1)华贵栉孔扇贝在最适盐度范围内, 幼贝适宜的存活温度为15.0～30.5℃; 最适存活温度19.0～27.0℃; 适宜生长温度15.0～30.4℃, 最适生长温度23.3～27.9℃。在最适温度范围内, 幼贝适宜的存活盐度为20.3～34.0; 最适存活盐度27.9～34.0; 适宜生长盐度19.3～34.0, 最适生长盐度21.9～34.0。(2)温度和盐度对幼贝存活和生长的影响存在互作效应。当盐度处于最适宜范围时, 幼贝的适宜及最适温度范围达到最大; 当盐度向两个极端移动时, 幼贝的适宜及最适温度范围变小; 但是适宜及最适温度范围的中心点不会随盐度的改变而改变。当温度处于最适宜范围时, 幼贝的适宜及最适盐度范围达到最大; 当温度向两个极端移动时, 幼贝的适宜及最适盐度范围变小; 但是适宜及最适盐度范围的中心点不会随温度的改变而改变。(3)幼贝对低温的适应能力强于对高温的适应能力, 对高盐的适应能力强于对低盐的适应能力。 |
| 关键词: 华贵栉孔扇贝(Chlamys nobilis) 幼贝 存活 生长 温度 盐度 互作效应 |
| DOI： |
| 分类号: |
| 基金项目:广东省科技计划项目(2010B020201014); 广东高校热带海产无脊椎动物养殖工程研究中心(GCZX-A0909) |
|
| Interactions of temperature and salinity to the survival and growth of Chlamys nobilis (Reeve) |
|
|
| Abstract: |
| To get insight into adaptability to temperature and salinity and to provide a scientific basis to ambient control for the breeding and culture of Chlamys nobilis(Reeve), the interactions of temperature and salinity to the survival and growth of C. nobilis juvenile were studied under indoor experimental conditions. The orthogonal test methodology of two factors and five levels has been applied to set up 5 temperature gradients (15, 19, 23, 27 and 31 ) and 5 salinity gradients (18, 22, 26, 30 and 34). Results: (1) In the most adaptive salinity scope, the survival temperature for the juvenile is 15.0～30.5℃; the most adaptive temperature is 19.0～27.0℃; the adaptive growth temperature is 15.0～30.4℃, the most adaptive temperature is 23.3～27.9℃. Within the most adaptive temperature scope, the adaptive salinity for the juvenile is 20.3～34.0, the most adaptive salinity 27.9～34.0, the adaptive growth salinity is 19.3～34.0, and the most adaptive growth salinity 21.9～34.0. (2) There exist interactions between temperature and salinity to the survival and growth of juvenile. When the salinity was in the most adaptive scope, the adaptive and most adaptive temperature scope for the spats reached the maximum. When the salinity moved to the two ends, the adaptive and most adaptive temperature scope for the spats shrinked. Yet the central point for the adaptive and most adaptive temperature scope did not alter with the change of the salinity. When the temperature was in the most adaptive scope, the adaptive and most adaptive salinity scope for the spats reached the maximum. If the temperature turned to the two ends, the adaptive and most adaptive salinity for the spats shrinked. The central point of the adaptive and most adaptive salinity scope did not change with the alteration of the temperature. (3)The juveniles adaptability for the high salinity was stronger than the low salinity, and adaptability for the low temperature is stronger than the high temperature. The research has offer new insights to the ecological theory of the C. nobilis culture. |
| Key words: Chlamys nobilis juvenile survival growth temperature salinity interaction |
