花耗氧率和窒息点的初步研究

Studies on the oxygen consumption rate and asphyxiant point of Hemibarbus maculatus Bleeker

实验测定了花[鱼骨]的耗氧率和窒息点，并对耗氧率的昼夜变化规律以及体重对其窒息点的影响进行了研究。结果表明，在实验温度（10～25℃）条件下，花[鱼骨]的耗氧率随温度的升高而增大，随体重的增加而降低；耗氧率（R0）与温度（T）和体重（W）的二元线形回归方程是：R0=0．022T-0．001W-0．05，复相关系数为0．926，F检验表明，花[鱼骨]的耗氧率与温度和体重之间有极显著复相关关系；花[鱼骨]的耗氧率具有昼夜节律性，耗氧高峰山现在凌晨3：00，低谷是在上午11：00；花[鱼骨]的窒息点与体重显著相关，窒息点A（mg／L）与体重W（g）的相关关系表示为：A=0.2671W^0.2801，随体重的增加而升高。

The oxygen consumption rate （OCR） and the effect of body weight on the asphyxiant point （AP） of Hemibarbus maculatus Bleeker were studied. The results demonstrated that under the controlled temperature（ 10 - 25 ℃ ） the OCR increased while temperature rose, and decreased while body weight increased; The linear regression relationships of oxygen consumption rate（R0） with temperature and body weight（W）can be described as R0 = 0. 022 T-0.001W 0.05, and the multiple relation coefficient was 0. 926; Daily fluctuation of the OCR could also be observed in the experiment, the highest and lowest of which occurs at 3：00, 11：00 a. m respectively; The positively exponential regressive function A = 0.2671W^0.2801 expressed that the AP, significantly correlated with body weight, rose with the increase of body weight.