441千瓦双船底拖网网口高度与网口周长的关系  

RELATIONSHIP BETWEEN THE HEIGHT AND THE CIRCUMFERENCE OF NET OPENING IN 441 KW BOTTOM PAIR TRAWLERS

作　　者：林德芳[1] 

机构地区：[1]中国水产科学研究院黄海水产研究所,青岛266071

出　　处：《海洋渔业》1996年第4期157-159,共3页Marine Fisheries

摘　　要：本文报道了1986～1992年期间对441kW渔船使用的11顶底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)。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.

关 键 词：拖网 网口高度 网口拉直周长 垂直扩张系数 

分 类 号：S973.23[农业科学—捕捞与储运]