| 温度对白鲢幼鱼游泳能力及代谢影响的研究 |
| Effect of Temperature on Swimming Capability and Metabolism of |
| 投稿时间：2013-03-31 修订日期：2013-07-03 |
| DOI： |
| 中文关键词:温度 耗氧率 临界游泳速度 游泳能力 |
| 英文关键词:temperature oxygen consumption critical swimming speed swimming capability |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目）,水利公益性行业科研专项经费项目 |
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| 中文摘要: |
| 以鲢(Hypophthalmichthys molitrix)幼鱼(体长10.9～11.8cm,体重16.0～19.0g)为对象,研究了在不同温度(15、18、21、25℃)条件下的游泳能力及耗氧率。结果表明:(1)鲢幼鱼的相对临界游泳速度分别为:(5.30±0.32)、(5.87±0.25)、(6.17±0.16)、(6.85±0.16)BL/s,临界游泳速度随温度升高呈线性增加,拟合方程:Ucrit=3.073+0.150T(R2=0.983,P<0.005)。(2)在同一温度下耗氧率随流速的增加而增加,在同一流速下耗氧率随温度的增加而增加;使用power方程拟合耗氧率与流速关系,4种温度下的速度指数分别为1.41、1.31、1.60、1.80,随着温度的升高而增大。研究结果为水温变化对鱼类影响以及鱼道流速设计提供了鲢幼鱼游泳能力参数。 |
| 英文摘要: |
| Swimming capability and oxygen consumption rate of juvenile Hypophthalmichthys molitrix were conducted by a self-designed apparatus at four temperatures. Critical swimming speed was 6. 85± 0. 16，6. 17± 0. 16，5 .87± 0.25 and 5.30 ±0.32 BL/s，at 15，18，21 and 25℃，respectively. There was a significant(P<0. 005) linear correlation between the critical swimming speed( Ucrit)and temperature ( T).The linear function described as U=3 .073+0. 149T，and the increased with the temperature. The relationship between swimming velocity(U)and oxygen consumption(Mo2},)was fitted by a power function. The result indicated that the oxygen consumption was increasing with the growth of velocity，at all temperatures. And with the increase of temperature，the oxygen consumption and speed exponent increased，thus，the efficiency of energetic decreased. The result of this investigation provides fundamental information about swimming ability of Juvenile Hypophthalmichthys molitrix for intensive studies.
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| 房敏,蔡露,高勇,涂志英,王从锋,黄应平.2013.温度对白鲢幼鱼游泳能力及代谢影响的研究[J].水生态学杂志,34(3):49-53. |
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