摘要
在试验水槽 (2 7m× 1 2m× 0 8m)底部中线铺设一根白色硬质塑料管 (φ =1 6mm) ,管的上侧钻有一排小孔 (φ =1 0mm) ,孔距分别为 2 5、 5 0cm ,压缩空气压力分别为 2 1 5 7、 2 7 46、 3 3 3 4、 3 9 2 3kPa。用 8种不同密度固定气泡幕对红鳍东方Fugurubiripes进行了阻拦效果的试验 ,结果表明 ,这 8种气泡幕对红鳍东方都具有较明显的阻拦作用 ,其中孔径 1 0mm、孔距 2 5cm、压缩空气压力为 2 7 46kPa时 ,气泡幕对鱼的阻拦效果最好 ,平均阻拦率为 71 0 %。
Indoor experiments were carried out to investigate the intercepting effects of immovable bubble curtains (IBC) with different density on Fugu rubiripes. The density of IBC was decided by air-hole spacing, air-hole diameter and air pressure. The air-hole spacing of each IBC was 2.5 cm and 5.0 cm, the air-hole diameter was 1.0 mm and the air pressure was 21.57 ,27.46,33.34 and 39.23 kPa respectively. The IBC was undertaken from a hard polyethylene pipe (16 mm i.d), fixed on the bottom middle of an experimental tank. The results show significant intercepting effects of the eight IBC on the fish behaviors observed, and the one with air-hole diameter 1.0 mm, air-hole spacing 2.5 cm and air pressure 27.46 kPa was the best. The average obstructing rate was 71.0%.
出处
《大连水产学院学报》
CSCD
北大核心
2002年第3期234-239,共6页
Journal of Dalian Fisheries University
基金
辽宁省教育厅科研项目 ( 2 0 1 0 4 330 )
