温度对玉筋鱼摄食排空率的影响

Study on the gastric evacuation rates of Ammodyte personatus under different temperatures

在室内实验室玻璃钢水槽中 ,以细长脚虫戎为饵料 ,研究了黄、东海主要小型鱼类玉筋鱼的不同温度条件下的摄食排空率。结果表明 ,玉筋鱼的摄食排空率随着温度的升高而有所增加 ;通过比较指数函数和二次多项式函数的模拟结果表明 ,玉筋鱼的摄食排空率与温度的关系更适合于用二次多项式函数Rt=- 0 0 0 0 8T2 +0 0 4 19T - 0 3834(R2 =0 982 0 )加以定量描述。

Studies were carried out in laboratory on the gastric evacuation rates of Ammodyte personatus, a small-size fish in Bohai Sea and Yellow Sea, under different temperatures with Themisto gracilipes as diet. The results showed that gastric evacuation rate (GER) tended to increase with temperature rise and the relation between GRE and temperature could be described as R t = -0.000 8T 2 + 0.041 9T - 0.383 4(R 2 = 0.982 0).