| 摘要: |
| 采用流水式呼吸仪测定了不同体质量的半滑舌鳎(Cynoglossus semilaevis)在盐度为16.43～33.62 条件下的标准代谢率。结果表明: 各个盐度下的标准代谢率与体质量呈正相关, 而单位体质量标准代谢率与体质量呈负相关; 标准代谢率与体质量之间的关系可用幂函数Rs=aMb表示。不同盐度下, 标准代谢率的组间均数差异高度显著(P<0.01), 体质量指数b之间的差异显著(P<0.05)。修正为标准体质量后,各规格组的标准代谢率均在27.46 盐度组下最低, 而在20.08 盐度组最高。 |
| 关键词: 半滑舌鳎(Cynoglossus semilaevis) 标准代谢率 盐度 体质量 |
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| 基金项目:江苏省普通高校博士研究生创新项目(CX09B-106Z); 江苏省教育厅高校教师自然科学基金(09KJD240004) |
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| Effect of salinity and body mass on standard metabolic rates of Cynoglossus semilaevis |
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| Abstract: |
| The standard metabolic rates of Cynoglossus semilaevis of different body mass were determined by continuous-flow method at different salinity levels. The experimental result showed that the standard metabolic rate (Rs) of C. semilaevis increased but the specific standard metabolic rate ( Rs′) decreased with increasing body weight. The relationship between body weight and standard metabolic rate could be described as a power function, Rs=aMb. There were significant difference between the standard metabolic rates determined under different salinities (P<0.01), with significant different between the exponent (P<0.05). After the normalization of body weights, the standard metabolic rate was lowest at salinity 27.46, and highest at 20.08. |
| Key words: Cynoglossus semilaevis standard metabolic rate salinity body mass |
