| 441千瓦双船底拖网网口高度与网口周长的关系 |
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| 引用本文： | 林德芳.441千瓦双船底拖网网口高度与网口周长的关系[J].海洋渔业,1996,18(4):157-159. |
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| 作者姓名： | 林德芳 |
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| 作者单位： | 中国水产科学研究院黄海水产研究所 青岛 |
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| 摘 要： | 本文报道了１９８６￣１９９２年期间对４４１ｋＷ渔船使用的１顶度拖网网口高度的海上实测结果。结果表明：网口高度是网口拉直周长的５．５￣７．３％。两者的关系可用经验公式表示为：Ｈ＝０．２６０９Ｌ＾０．７３４４。
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| 关 键 词： | 拖网 网口高度 网口拉直周长 垂直扩张系数 |
RELATIONSHIP BETWEEN THE HEIGHT AND THE CIRCUMFERENCE OF NET OPENING IN 441 KW BOTTOM PAIR TRAWLERS |
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| Lin Defang.RELATIONSHIP BETWEEN THE HEIGHT AND THE CIRCUMFERENCE OF NET OPENING IN 441 KW BOTTOM PAIR TRAWLERS[J].Marine Fisheries,1996,18(4):157-159. |
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| Authors: | Lin Defang |
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| Abstract: | The results of real tests of the height of net opening for bottom trawls at sea by using 441 kW fishing boats during the period of 1986 to 1992 are reported. The results indicate that the height of net opening was 5. 5 - 23% of the circumference of stretched net opening. The relationship between the height and the circumference of stretched net opening can be expressed by using empirical formula as H = 0. 2609L0.7344. |
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| Keywords: | Bottom trawl the height of net opening the circumference of stretched net opening vertical opening coefficient |
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