国内外小网目南极磷虾拖网性能对比分析
详细信息 查看官网全文
- 英文论文题名：Comparative analysis on the performance of Internal and External Antarctic krill mid-water trawls with small mesh sizes
- 论文作者：苏志鹏 ; 许柳雄 ; 朱国平 ; 唐浩 ; 王震 ; 王腾
- 英文论文作者：SU Zhipeng ; XU Liuxiong ; ZHU Guoping ; TANG Hao ; WANG Zhen ; WANG Teng ; College of Marine Sciences ; Shanghai Ocean University ; National Engineering Research Center for Pelagic Fishery ; Shanghai Ocean University ; Key Laboratory of Sustainable Exploitation of Ocean Fisheries Resources ; Ministry of Education ; Shanghai Ocean University
- 年：2016
- 作者机构：上海海洋大学海洋科学学院;上海海洋大学国家远洋渔业工程技术研究中心;上海海洋大学大洋渔业资源可持续开发省部共建教育部重点实验室;
- 论文关键词：海上实测 ; 网具阻力 ; 能耗系数
- 英文论文关键词：field measurements ; netresistance ; power consumption coefficient
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S972.13
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：508k
- 原文格式：D
- 会议级别：全国
摘要
本文根据完成的国内南极磷虾1号网(246m×141m(63.14m))和国外南极磷虾2号网(300m×132.8m(55.68m))海上试验,分析对比国内、外磷虾拖网网具性能。试验结果表明:(1)两顶网具的上纲达到60m的水层平均所需的时间均为5分钟。(2)拖速为3.0Kn,曳纲长度为150m时,1号拖网的总阻力比2号拖网约低41.55%,1号网纲索估算阻力比2号网约高52.45%。(3)1号网的能耗系数约为2号网的一半。1号网的水动力性能为2号网的1.7倍,表明1号网具有能耗低和水动力性能高的特性。(4)1号网与2号网的身周比分别为41%、36%。实测结果表明,在一定的虾群分布条件下,身周比较大的网具,渔获性能相对较好。
In this paper, according to the experiment of internalkrill trawl Net1(246m×141(63.14m))and external krill trawl Net 2(300m×132.8m(55.68m)) at the sea. The main results are as follow:(1)Headline of two trawls net spend five minute to reach the water layer of60 m on average.(2) When the towing speed is 3.0 Kn and warping length is 150 m, the trawl total resistance of Net 1 is about 41.55%lower than Net 2, the approximately resistance of otter broad used by trawl is about 20.48 k N, the approximately ropes resistance of Net 1 is about52.45%higher than Net 2.(3)The power consumption coefficient of Net 1 is approximately half of Net 2, and hydrodynamic performance is approximately one point seven times of Net 2, this result show that the Net 1 has characteristics of low energy consumption and high hydrodynamic performance.(4) The ratio of net body length to net mouth perimeter of Net 1 and Net 2 is 41%,36%, respectively, the measured results show that, the lager ratio of net body length to net mouth perimeter net, the better of catch performance under the certain condition.
In this paper, according to the experiment of internalkrill trawl Net1(246m×141(63.14m))and external krill trawl Net 2(300m×132.8m(55.68m)) at the sea. The main results are as follow:(1)Headline of two trawls net spend five minute to reach the water layer of60 m on average.(2) When the towing speed is 3.0 Kn and warping length is 150 m, the trawl total resistance of Net 1 is about 41.55%lower than Net 2, the approximately resistance of otter broad used by trawl is about 20.48 k N, the approximately ropes resistance of Net 1 is about52.45%higher than Net 2.(3)The power consumption coefficient of Net 1 is approximately half of Net 2, and hydrodynamic performance is approximately one point seven times of Net 2, this result show that the Net 1 has characteristics of low energy consumption and high hydrodynamic performance.(4) The ratio of net body length to net mouth perimeter of Net 1 and Net 2 is 41%,36%, respectively, the measured results show that, the lager ratio of net body length to net mouth perimeter net, the better of catch performance under the certain condition.
引文