Liu J, Cui Y, Liu J
State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, the Chinese Academy of Sciences, 430072, Wuhan, PR China.
Comp Biochem Physiol A Mol Integr Physiol. 2000 Oct;127(2):131-8. doi: 10.1016/s1095-6433(00)00246-4.
Resting metabolism was measured in immature mandarin fish Siniperca chuatsi weighing 42.1-510.2 g and Chinese snakehead Channa argus weighing 41.5-510.3 g at 10, 15, 20, 25, 30 and 35 degrees C. Heat increment of feeding was measured in mandarin fish weighing 202.0 (+/-14.0) g and snakehead weighing 200.8 (+/-19.3) g fed swamp loach Misgurnus anguillicaudatus at 1% body weight per day at 28 degrees C. In both species, weight exponent in the power relationship between resting metabolism and body weight was not affected by temperature. The relationship between resting metabolism and temperature could be described by a power function. The temperature exponent was 1.39 in mandarin fish and 2.10 in snakehead (P<0.05), indicating that resting metabolism in snakehead increased with temperature at a faster rate than in mandarin fish. Multiple regression models were used to describe the effects of body weight (W, g) and temperature (T, degrees C) on the resting metabolism (R(s), mg O(2)/h): lnR(s)=-5.343+0.772 lnW+1.387 lnT for the mandarin fish and lnR(s)=-7.863+0.801 lnW+2.104 lnT for the Chinese snakehead. The proportion of food energy channelled to heat increment was 8.7% in mandarin fish and 6.8% in snakehead.
在10℃、15℃、20℃、25℃、30℃和35℃条件下，对体重42.1 - 510.2克的未成年鳜鱼（Siniperca chuatsi）和体重41.5 - 510.3克的乌鳢（Channa argus）的静止代谢进行了测定。在28℃条件下，对体重202.0（±14.0）克的鳜鱼和体重200.8（±19.3）克的乌鳢投喂体重1%的泥鳅（Misgurnus anguillicaudatus），测定其摄食热增量。在这两个物种中，静止代谢与体重之间幂函数关系中的体重指数不受温度影响。静止代谢与温度之间的关系可用幂函数描述。鳜鱼的温度指数为1.39，乌鳢为2.10（P<0.05），表明乌鳢的静止代谢随温度升高的速率比鳜鱼更快。采用多元回归模型描述体重（W，克）和温度（T，℃）对静止代谢（R(s)，毫克O₂/小时）的影响：鳜鱼的lnR(s)= -5.343 + 0.772 lnW + 1.387 lnT，乌鳢的lnR(s)= -7.863 + 0.801 lnW + 2.104 lnT。鳜鱼中转化为摄食热增量的食物能量比例为8.7%，乌鳢为6.8%。
