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为探究固定气泡幕对许氏平鲉(Sebastes schlegelii)的阻拦效果,设定气泡幕的孔距、孔径如下:当孔径为0.5mm时,设定孔距为1.0、2.0、3.0、5.0、10.0cm,当孔距为2.0cm时,设定孔径为0.2、0.5、0.8、1.0、1.5mm,研究了这9种类型的固定气泡幕对许氏平鲉的阻拦效果,并探究了许氏平鲉对孔距2.0cm、孔径0.5mm气泡幕的适应性。研究表明:上述各规格的气泡幕对许氏平鲉均有显著的阻拦效果(t>t0.01)。在孔距实验中,孔距为1.0、2.0、3.0、5.0、10.0cm的气泡幕对许氏平鲉的平均阻拦率分别为71.43%、95.24%、92.98%、53.85%、80.14%,其中孔距2.0cm的气泡幕阻拦率最高。在孔径实验中,孔径为0.2、0.5、0.8、1.0、1.5 mm的气泡幕对许氏平鲉的平均阻拦率分别为96.03%、95.24%、82.05%、100%、98.74%,其中孔径1.0mm的气泡幕阻拦率最高。在4h的适应性实验中,许氏平鲉对孔距2.0cm、孔径0.5mm的气泡幕表现出一定的适应性(F>F_(0.05))。本研究结果可为我国海洋牧场中许氏平鲉鱼群控制技术提供参考。
In order to explore the blocking effect of the fixed bubble curtain on Sebastes schlegelii, the hole pitch of the bubble curtain is set as follows: When the hole diameter is 0.5 mm, the setting pitch is 1.0, 2.0, 3.0, 5.0, 10.0 cm, when the hole distance is 2.0cm, the aperture is set to 0.2,0.5,0.8,1.0,1.5mm, to study the blocking effect of these 9 types of fixed bubble curtains on Hsu Ping Ping,鲉 on the pitch 2.0cm, aperture 0.5mm bubble curtain adaptability. The results show that the above-mentioned bubble screens have significant effect on the flatness of Hsu’s flatfish (t> t0.01). In the experiment of hole pitch, the average blocking rate of air bubble curtains with the pitches of 1.0, 2.0, 3.0, 5.0 and 10.0 cm to Hsu Ping Ping was 71.43%, 95.24%, 92.98%, 53.85% and 80.14% respectively, 2.0cm from the bubble blocking the highest rate. In the experiment of pore size, the average inhibition rates of bubble screens with diameters of 0.2, 0.5, 0.8, 1.0 and 1.5 mm to XU flat were 96.03%, 95.24%, 82.05%, 100% and 98.74% The bubble screen blocked the highest rate. In the adaptive experiment of 4h, H. tabulaeformis exhibited some adaptability to the bubble curtain with a hole pitch of 2.0cm and a pore size of 0.5mm (F> 0.05). The results of this study can provide references for the control technology of Habitat Flatfish in the marine pastures of China.