研究了不同温度（5±0．5）℃、（10±0．5）℃、（15±0．5）℃、（20±0．5）℃和（25±0．5）℃）下青海湖裸鲤（Gymnocypris przewalskii）的耗氧率、耗氧量与呼吸频率的关系。结果表明，耗氧率、耗氧量和呼吸频率均随着温度的升高而升高，且不同温度间差异显著（P＜0．01）。呼吸频率在5～10℃较低温度时没有明显差异（P＞0．05）。呼吸频率在不同的温度下都存在明显的昼夜差异（P＜0．05），白天明显高于夜晚。不同温度下呼吸频率和耗氧率的回归关系为y＝63．052 e（0．0115x）（R2＝0．9822）；呼吸频率和耗氧量的回归关系为y＝－1．7197 x2＋38．437 x －61．914（R2＝0．9618）。在15～20℃间的耗氧率、耗氧量和呼吸频率相对变化较小，为适宜养殖的水温。%The objective of the study was to explore the relationship between oxygen consumption rate , oxygen consumption and respiratory frequency of Gymnocypris przewalskii .The experiment was studied under five temperature gradients 5 ± 0 .5 ℃ ,10 ± 0 .5 ℃ ,15 ± 0 .5 ℃ ,20 ± 0 .5 ℃ and 25 ± 0 . 5 ℃ .The results showed that oxygen consumption rate ,oxygen consumption and respiratory frequen‐cy increased significantly (P<0 .01) as temperature rose .The respiratory frequency showed no signifi‐cant difference between 5~10 ℃ that is a relative low temperature (P>0 .05) .The respiratory fre‐quency was obviously different between day and night (P<0 .05) ,which showed high during daylight and low during night .The relationship between respiratory frequency and oxygen consumption rate under different temperature could be expressed as y =63 .052 e(0 .0115x) (R2 = 0 .982 2);the relationship between respiratory frequency and oxygen consumption under different temperature could be ex‐pressed as y= -1 .7197x2 +38 .437x -61 .914 (R2 =0 .9618) .In addition ,the rate of oxygen consump‐tion ,oxygen consumption and respiratory frequency was not obviously changed when the water tem‐perature was kept at 15~20 ℃ compared to others .Therefore ,15~20 ℃ was treated as suitable tem‐perature for Gymnocypris przewalskii aquaculture .
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