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 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=0.1354e0.0573x(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 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=-0.0003x2+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.
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]. 大连海洋大学学报, 2012, 27(3): 205-209.
LIU Qing, SONG Ying-ying, XING Yong, ZHANG Chang-xin, LEI Yan-zhi. Effects of temperature and salinity on oxygen consumption rate and asphyxia point in copepod Eurytemora affinis. Journal of Dalian Ocean University, 2012, 27(3): 205-209.
2012, Vol. 27 
