| 雷氏七鳃鳗耗氧率和窒息点的研究 |
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| 引用本文： | 王晓光,于伟君,李军,石俊艳,魏宏祥,宣明春,寇凌霄,齐鹤,刘勇,吴瑞兰.雷氏七鳃鳗耗氧率和窒息点的研究[J].大连水产学院学报,2011,26(2):119-125. |
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| 作者姓名： | 王晓光 于伟君 李军 石俊艳 魏宏祥 宣明春 寇凌霄 齐鹤 刘勇 吴瑞兰 |
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| 作者单位： | 辽宁省淡水水产科学研究院; |
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| 基金项目： | 辽宁省海洋与渔业厅科研项目(200824) |
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| 摘 要： | 在不同温度下,分别采用流水和静水呼吸室法,测定雷氏七鳃鳗变态前后及以规格为标准分类的大规格成年雷氏七鳃鳗Lampetra reissneri（成鳗大）、小规格成年雷氏七鳃鳗（成鳗小）、大规格幼年雷氏七鳃鳗（幼鳗大）和小规格幼年雷氏七鳃鳗（幼鳗小）的耗氧量、耗氧率和窒息点。结果表明：成鳗大（8.59g±0.20 g）、成鳗小（5.42 g±0.10 g）和幼鳗小（5.27 g±0.17 g）的耗氧率存在昼夜变化;其中成鳗大的最高耗氧率（0.167 mg/g.h±0.022 mg/g.h）、最低耗氧率（0.035 mg/g.h±0.003 mg/g.h）与成鳗小的最高耗氧率（0.192 mg/g.h±0.036 mg/g.h）、最低耗氧率（0.051 mg/g.h±0.016 mg/g.h）均出现在8：00和16：00;幼鳗小的最高耗氧率（0.119 mg/g.h±0.027 mg/g.h）和最低耗氧率（0.038mg/g.h±0.013 mg/g.h）分别出现在18：00和14：00。在1~20℃时,雷氏七鳃鳗的耗氧率与水温呈正相关,成鳗大（10.45 g±0.13 g）的关系式为Y大=0.0254X0.9115（R2=0.8516）,成鳗小（4.65 g±0.07 g）的关系式为Y小=0.0272X0.9406（R2=0.8840）;而幼鳗小（5.92 g±0.05 g）的耗氧量、耗氧率随着水温的升高,呈波浪式上升。在1~15℃时,成鳗大（10.67 g±0.18 g）的窒息点随着水温的上升而降低,其关系式为Y大=0.2224X-0.3945（R2=0.9710）,在15~20℃时,其窒息点随着水温的上升而上移,窒息点曲线呈＂V＂字型;在1~10℃时,成鳗小（5.46 g±0.12 g）的窒息点随着水温上升而降低,关系式为Y小=0.4427X-0.6561（R2=0.8866）,在10~20℃时,其窒息点随着水温的上升呈上升趋势,但差异不显著（P〉0.05）;在1~15℃时,幼鳗小（5.74±0.83 g）的窒息点随着水温的上升而降低,在15~20℃时,其窒息点随着水温的升高而上升,关系式为Y幼=0.3008X-0.4003（R2=0.8581）（P〈0.05）。体质量不同的成鳗大（10.10 g±0.13 g）与成鳗小（4.79 g±0.08 g）的耗氧量差异显著（P〈0.05）,而耗氧率则无显著差异（P〉0.05）;体质量不同的幼鳗大（7.60 g±0.15 g）与幼鳗小（4.79 g±0.09 g）的耗氧量和耗氧率均无显著差异（P〉0.05）。
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| 关 键 词： | 雷氏七鳃鳗 耗氧率 窒息点 |
Oxygen consumption and asphyxial point in Asiatic brook lamprey Lampetra reissneri |
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| WANG Xiao-guang,YU Wei-jun,LI Jun,SHI Jun-yan,WEI Hong-xiang,XUAN Ming-chun,KOU Ling-xiao,QI He,LIU Yong,WU Rui-lan.Oxygen consumption and asphyxial point in Asiatic brook lamprey Lampetra reissneri[J].Journal of Dalian Fisheries University,2011,26(2):119-125. |
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| Authors: | WANG Xiao-guang YU Wei-jun LI Jun SHI Jun-yan WEI Hong-xiang XUAN Ming-chun KOU Ling-xiao QI He LIU Yong WU Rui-lan |
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| Institution: | WANG Xiao-guang,YU Wei-jun,LI Jun,SHI Jun-yan,WEI Hong-xiang,XUAN Ming-chun,KOU Ling-xiao,QI He,LIU Yong,WU Rui-lan(Freshwater Fisheries Science Institute of Liaoning Province,Liaoyang 111000,China) |
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| Abstract: | The oxygen consumption rate,oxygen consumption amount and asphyxial point were measured in Asiatic brook lamprey Lampetra reissneri with different body weight by a flow-through chamber and static chamber at different temperature.There were significant rhythms of oxygen consumption in the adult lamprey with body weigh（8.59±0.20）g,and the juveniles with body weight（5.42±0.10）g and（5.27±0.17）g.The peak oxygen consumption rate（0.167±0.022） mg/g·h and the minium oxygen consumption rate（0.035±0.003） mg/g·h in the adult lamprey with body weight（8.59±0.20）g were observed at 8：00 and 16：00,respectively.For the lamprey with body weight（5.42 g±0.10 g）,however,the peak oxygen consumption rate（0.192±0.036） mg/g·h and the minium oxygen consumption rate（0.051±0.016） mg/g·h were found at 8：00和16：00,respectively.Moreover,the peak oxygen consumption rate（0.119±0.027） mg/g·h and the minium oxygen consumption rate（0.038±0.013） mg/g·h in the juveniles with body weight（5.27 g±0.17） g were occurred at 18：00 and 14：00,respectively.There was a positive relationship between water temperature（1-20 ℃） and oxygen consumption rate in the adult lamprey： Y= 0.0254X0.9115（R2=0.8516）（body weight： 10.45 g±0.13） g and Y=0.0272X0.9406（R2=0.8840）（body weight： 4.65 g±0.07） g.Furthermore,the oxygen consumption rate and oxygen consumption amount of the juveniles with body weight（5.92 g±0.05 g） increased with the increase in temperature.The negative relationship between the point of the lamprey with body weight（10.67 g±0.18 g） and temperature（1-15 ℃）was expressed as the equation：Y=0.2224X-0.3945（R2=0.971） while there was a positive relationship between the asphyxial point of the adult lamprey and temperature（15-20 ℃）,and a negatively relationship between the asphyxial point of the adult lamprey with body weight（5.46 g±0.12 g） and temperature（1-10 ℃） as the equation： Y=0.4427X-0.6561（R2=0.8866）.In 15-20 ℃,the asphyxial point of the lamprey with body weight（5.74 g±0.83 g） was increased with the increase in temperature as the equation： Y=0.3008X-0.4003（R2=0.8581）（P0.05）.There was significantly difference between the oxygen consumption of adult lamprey with body（10.10 g±0.13 g） and（4.79 g±0.08 g）（P0.05）,but there were no significant difference between the oxygen consumption rates（P0.05）.There were no significant difference in the juveniles with body weight（7.60 g±0.15 g）,and（4.79 g±0.09 g）（P0.05）. |
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| Keywords: | Lampetra reissneri oxygen consumption rate asphyxial point |
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