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 consumption rate and specific oxygen consumption rate of the copepod were found to be increased with the increasing temperature, 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 regression equations were expressed as y = 0. 1354e0.573χ( R2 =0. 9582) for individual oxygen consumption rate and y=0.7746e0.0574χ(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 consumption 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=-0.0003χ2+0. 0061χ+0. 4549 (R2 =0. 9047) and y = -0. 002χ2+ 0. 0352χ +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.%在实验室条件下研究了不同温度、盐度下近亲真宽水蚤Eurytemora 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=0.1354e0.0573x(R2=0.9582)和y=0.7746e0.0574x(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=-0.0003x2+0.0061x+0.4549(R2=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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