水生变温动物最优养殖水温的快速测定

The Speedy Test to Identify Optimal GrowthTemperature for AquaticPoikilothermal Animals

研究了鳖的心率随养殖水温变化的相关性，在整个试验温度区为５～３５℃，总体上，各试验鳖的平均心率与水温呈线性变化，但在２６～３０℃温度区时，各试验鳖的心率呈高度离散，而该温度区通常是最适宜增重养殖水温，作者推论当需要确定某一变温动物的未知适宜养殖水温时，可以先进行心率—水温的测定，根据心率离散区来初步确定最适宜养殖温度，以缩小最适宜养殖水温的试验温度探索范围。

The aim of this study is to provide certain scientific guidelines for fast cultivation of softshell turtle by investigating effects of water temperature on its heart rate. The heart rate was measured by pH38 ECG recorder. Water bath was applied to control water temperature, recording electrodes were well attached to four legs of turtle, and the test temperature was controlled within 535 .The results provide the clear evidence that the heart rate of turtle is linearly proportional to water temperature, but the data indicate that heart rates have the largest variation as the temperature within 2630 .To identify the optimal growth temperature for other types of aquaticpoikilothermal animals, this paper suggested to measure heart rate as a function of temperature. The temperature that shows large variation may serve as the best cultivated range.The relationship between the heart rate and temperature will provide a quantitative method to quickly identify the optimal growth range for aquaticpo