| 温度和盐度对近亲真宽水蚤耗氧率与窒息点的影响 |
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| 引用本文： | 刘青,宋莹莹,邢勇,张长新,雷衍之.温度和盐度对近亲真宽水蚤耗氧率与窒息点的影响[J].大连水产学院学报,2012,27(3):205-209. |
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| 作者姓名： | 刘青 宋莹莹 邢勇 张长新 雷衍之 |
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| 作者单位： | 1. 大连海洋大学 辽宁省水生生物学重点实验室,辽宁 大连,116023
2. 盘锦光合蟹业有限公司,辽宁 盘锦,124200 |
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| 摘 要： | 在实验室条件下研究了不同温度、盐度下近亲真宽水蚤Emytemora affinis的耗氧率和窒息点。结果表明：温度和盐度对近亲真宽水蚤的个体耗氧量和耗氧率影响显著。当水温为5—25℃时，近亲真宽水蚤的个体耗氧量和耗氧率随温度的升高而呈缓慢上升，当水温为25～33℃时，个体耗氧量和耗氧率则骤然升高，其回归方程分别为y=0．1354e0.0574a（R2=0．9582）和y=0．7746e0.574a（R2=0．9584）；当温度为5—33℃时，窒息点为（0．96±0．04）～（3．94±0．17）mg／L。盐度为5～15时，蚤体的个体耗氧量和耗氧率随盐度的升高而升高，当盐度为15～35时，个体耗氧量和耗氧率呈明显下降趋势，其回归方程分别为Y=-0．0003x0＋O．0061x＋0．4549（R。=0．9047）和y=-0．002x2＋0．0352x＋2．6059（R2=0．9047）；盐度为5～40时，窒息点为（0．46±0．05）～（0．98＋0．03）mg／L。
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| 关 键 词： | 近亲真宽水蚤 温度 盐度 个体耗氧量 耗氧率 窒息点 |
Effects of temperature and salinity on oxygen consumption rate and asphyxia point in copepod Eurytemora affinis |
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| LIU Qing
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SONG Ying-ying
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XING Yong
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ZHANG Chang-xin
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LEI Yan-zhi.Effects of temperature and salinity on oxygen consumption rate and asphyxia point in copepod Eurytemora affinis[J].Journal of Dalian Fisheries University,2012,27(3):205-209. |
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| Authors: | LIU Qing SONG Ying-ying XING Yong ZHANG Chang-xin LEI Yan-zhi |
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| Institution: | 1. Key Labomtory of Hydrobiology in Liaoning Province, Dalian Ocean University, Dalian 116023, China; 2. Panjin Guanghe Crab Industrial Co. Ltd. ,Panjin 124200,China) |
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| Abstract: | The effects of temperature and salinity on oxygen consumption rate and asphyxia point were studied in copepod Eurytemora affinis in a laboratory. Within the experimental temperature, the individual oxygen consump- tion rate and specific oxygen consumption rate of the copcpod were found to be increased with the increasing tem- perature, the individual oxygen consumption rate and specific oxygen consumption rate showing a slow increase as the temperature being increased from 5 ℃ to 25 ℃. When the temperature was rose from 25℃ to 33 ℃, however, the individual oxygen consumption rate and specific oxygen consumption rate were showed sharp increment. The re- gression equations were expressed as y= 0. 1354e0.0573x（ R2= 0. 9582） for individual oxygen consumption rate and y=0. 7746e0.0574x（R2 =0.9584） for specific oxygen consumption rate. The asphyxia point was found to be ranged from （0.96±0.04） mg/L to （3.94±0.17） mg/L within 5-33℃. During the salinity experiments, the oxygen con- sumption rate and specific oxygen consumption rate were increased at a salinity of 5-15, and decreased at a salinity of 15-35. The linear regression equation of salinity and oxygen consumption rate and specific oxygen consumption rate were described as y=-0. 0003x2＋0. 0061x＋0. 4549 （R2 =0. 9047） and y=-0. 002x2＋ 0. 0352 x ＋2. 6059 （ R2 = 0. 9047 ）, respectively. The asphyxia point was varied from （0.46±0.05 ） mg/L to （0.98 ±0.03 ） mg/L, at a salinity of 5-40. |
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| Keywords: | Eurytemora affinis temperature salinity oxygen consumption rate specific oxygen consumption rate asphyxia point |
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