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固定气泡幕对许氏平鲉阻拦效果的研究

ISSN号：1672-5174
期刊名称：《中国海洋大学学报：自然科学版》
时间：0
分类：S957.9[农业科学—水产养殖;农业科学—水产科学]
作者机构：[1]中国海洋大学水产学院,山东青岛266003, [2]农业部东海与远洋渔业资源开发利用重点实验,上海200090, [3]青岛市胶州市海洋与渔业局,山东青岛266400
相关基金：公益性项目（农业）行业专项（201203018）; 农业部东海与远洋渔业资源开发利用重点实验室开放课题项目（2014K05）; 中国海洋大学本科生训练计划项目（1112010616）资助

作者：陈钊[1], 黄六一[1], 黄洪亮[2], 唐衍力[1], 孙峰德[3], 郝连旭[1], 党荣哲[1], 宫剑波[1], 朱琴[1]

关键词：许氏平鲉, 气泡幕, 孔距, 孔径, 阻拦率, Sebastes schlegelii, air-bubble curtain, pore interval, pore diameter, obstructing rate

中文摘要：

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。

英文摘要：

The air-bubble curtain is commonly used as one of the fish controlling technique in marine ranching.In order to find out the standard of air-bubble curtain showing the best obstructing effect on Sebastes schlegelii and determine the adaption of this fish species to air-bubble curtain,indoor experiments were undertaken to investigate the intercepting effect of immovable air-bubble curtain on S.schlegelii.The bubble curtain was formed with a air pumped hard polyethylene pipe with a range of pores.The polyethylene pipe has two types,one has fixed pores of 0.5mm in diameter and 1.0,2.0,3.0,5.0and 10.0cm in interval,while the other has pores of fixed 2.0cm intervals and 0.2,0.5,0.8,1.0and 1.5mm in diameter.The result showed that（1）all the 9air-bubble curtains had a significant（tt0.01）intercepting effect;（2）the average obstructing rate of curtains with pores of fixed interval were 71.43%,95.24%,92.98%,53.85% and 80.14%,respectively,and the curtain with pores of2.0cm interval showed the best effect;（3）the average obstructing rate of curtains with the pores of fixed diameter was 96.03%,95.24%,82.05%,100% and 98.74%,respectively,and that of 1.0mm diameter was the best;and（4）the fish did not significantly（P〈0.05）adapted to air-bubble curtains with pores of both fixed interval and fixed diameter;however when air outlet distance was 2.0cm and air outlet diameter was 0.5mm within 4hour,fish showed significant（P〈0.05）adaption to the curtain.Our findings can provide references for using air-bubble curtain as a fish controlling technique in marine ranching.

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