Field experiment on static characteristics of midwater trawl system.
Field experiment on static characteristics of midwater trawl system.
复制标题
中层拖网系统静态特性现场试验。
DOI：
10.2331/suisan.57.655
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发表时间：
1991
影响因子：
0.4
通讯作者：
I. Kasuga
中科院分区：
文献类型：
--
作者：
K. Matuda;F. Hu;Kaname Satoh;Yujiro Saotome;I. Kasuga
东京水产大学的FRV“Shinyo-maru”进行了一项现场试验，以便详细测量中层水拖网系统的作业特性。在拖速为2.5 ~ 4.5kt、经向长度为100 ~ 500 m的条件下，利用SCANMAR系统（声展仪和网络测深仪）、自记式固态存储测力传感器和深度计，测量了拖航过程中的拖网几何形状和拖航载荷的时间序列。结果表明，随着拖航速度的增加和经纱长度的增加，翼端展度增大。尤其是经纱长度的变化对翼端展开的影响较大。
A field experiment was conducted by FRV “Shinyo-maru” belonging to Tokyo University of Fisheries in order to make detailed measurements on operational characteristics of a mid-water trawl system. Time series data describing the net geometry and the towing loads occurring during hauls were measured by SCANMAR system (acoustic spreadmeter and netsonde) and self recording solid state memory load cell and depth meter at the towing speed ranging 2.5 to 4.5kt with changing the warp length from 100m to 500m. It was shown that the spread of wingend increased with increase of towing speed and with increase of warp length. Especially, the change in warp length affects largely the wingend spread.