| 主要作业参数对单船中层拖网性能的显著性分析 |
| |
| 引用本文： | 冯春雷,黄洪亮,陈雪忠.主要作业参数对单船中层拖网性能的显著性分析[J].海洋渔业,2007,29(1):8-12. |
| |
| 作者姓名： | 冯春雷 黄洪亮 陈雪忠 |
| |
| 作者单位： | 中国水产科学研究院东海水产研究所,农业部海洋与河口渔业重点开放实验室,上海,200090 |
| |
| 基金项目： | 农业部重点项目
,
农业部重点实验室基金 |
| |
| 摘 要： | 以网口高度和网具阻力作为单船中层拖网性能的表现,在拖速3.0~5.5kn的范围内,选择上、下手纲,重锤,沉力,浮力,上、下叉纲7个作业参数作为影响其性能的因子,共进行了27次不同因子相互组合的模型系列试验。结果显示:显著性因子个数随拖速增加而增加,但到一定拖速后显著性个数不变;在不同拖速条件下,上手纲和下手纲变化对网具性能的影响均不大;重锤和浮力在不同的试验条件下,均是网具性能的主要影响因子。
|
| 关 键 词： | 中层拖网 作业参数 性能 显著性 |
| 文章编号： | 1004-2490（2007）01-0008-05 |
| 修稿时间： | 2006-08-21 |
Significance analysis on the main parameters of single boat mid-water trawl |
| |
| FENG Chun-lei,HUANG Hong-liang,CHEN Xue-zhong.Significance analysis on the main parameters of single boat mid-water trawl[J].Marine Fisheries,2007,29(1):8-12. |
| |
| Authors: | FENG Chun-lei HUANG Hong-liang CHEN Xue-zhong |
| |
| Institution: | East China Sea Fisheries Research Institute, China Academy of Fishery Sciences, Key and Open Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, Shanghai 200090, China |
| |
| Abstract: | Configuration of trawl net will affect both hydrodynamic and catching performances.In this article,we took the opening height and net resistance as the representation of single-boat mid-water trawl's perfor-mance,and chose seven factors effecting the performance of the net as main parameters,i.e.,upper-lower bridles,weights,sinking force,buoyancy,upper-lower legs.A total of 27 times model experiment were made with tow speed from 3.0kn to 5.5kn.The results are summarized as follows: the number of significance factor increase with the speed,but up to certain speed,the number is invariable;both upper and lower bridles do not affect the net's performance under different speed;while weights and buoyancy are the main affecting factors.So both are main parameters when adjusting midwater trawl. |
| |
| Keywords: | Mid-water trawl parameter performance significance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
