摘要
深水网箱囊网受水流推动,形状随水阻力大小而变化。囊网形状的变化与养殖容积有关,并直接影响了网箱养殖效果。通过分析认为,圆台形重力式柔性囊网有较好的抗流效果,更适合于深水网箱养殖作业。通过实物试验,报道了圆台形囊网在流速0.45-0.75 m·s-1时的外形设计、配重及制作方法,为强流下的深水网箱囊网制作提供参考。
The cod-end of deep-water net cage is driven by the current. Its form changes with the size of water resistance. The change of cod-end form is related to the carring capacity of net cage and influences the cultural effect directly. The anti-current effect of trun-cated cone cod-end is better than that of circular and column cod-ends by analysis, and is more suitable for the operations of deep-water net cage culture than circular and column cod-ends. By practical tests, this paper reported the form design, sinker weight and making method of the truncated cone cod-end under current velocity of 0. 45-0. 75 m·s^-1, and provided reference for cod-end making of deep-water net cage at strong current.
出处
《南方水产》
2005年第1期49-53,共5页
South China Fisheries Science
基金
"十五"国家科技攻关计划资助项目(2004BA526803)
国家农业科技成果转化资助项目(04EFN216900363)
广东省重大科技兴海资助项目(A200099C01)
关键词
网箱
囊网
设计
制作
net cage
cod-end
design
making
