鲐鱼灯光围网渔船合适作业间距的理论研究  

The theoretical study on suitable spacing between of light purse seine vessels for chub mackerel (Scomber japonicus)

作　　者：侍炯[1] 钱卫国[1] 杨卢明[1] 

机构地区：[1]上海海洋大学海洋科学学院,国家远洋渔业工程技术研究中心,大洋渔业资源可持续开发省部共建教育部重点实验室,上海201306

出　　处：《南方水产科学》2013年第4期82-86,共5页South China Fisheries Science

基　　金：国家高技术研究发展计划(863计划)项目(SS2012AA091803);公益性行业(农业)科研专项经费项目(201003024)

摘　　要：使用点光源海面照度计算方法,对一组鲐鱼(Scomber japonicus)灯光围网渔船(主灯船、副灯船、网船的集鱼灯总功率分别为180 kW、120 kW和40 kW)的有效光诱距离和合适作业间距进行计算。结果表明,适宜照度为0.01 lx时围网渔船的有效光诱距离为872.0 m,主灯船与副灯船之间的最小作业距离为1 650.4 m,副灯船与网船之间的最小作业距离为1 585.7 m,主灯船与网船之间的最小作业距离为1 669.7 m,2个灯光围网渔船船组间的合适作业距离为1 744.0 m;适宜照度为14.00 lx时围网渔船的有效光诱距离为138.3 m,主灯船与副灯船之间的最小作业距离为262.9 m,副灯船与网船之间的最小作业距离为249.4 m,主灯船与网船之间的最小作业距离为263.1 m,2个灯光围网渔船船组间的合适作业距离为276.6 m。Based on point source model of illumination on sea surface, we calculated the effective light distance and analyzed the optimal distance between light vessels in a chub mackerel purse seine fishing group, in which the total power of main light vessel, secondary light vessel, net vessel were respectively about 180 kW, 120 kW and 40 kW. The results show that when appropriate illumination being 0. 01 lx, effective light distance is 872. 0 m, minimum operating distance is 1 650.4 m between main light vessel and secondary vessel, 1 585.7 m between secondary light vessel and net vessel, and 1 669.7 m between main light vessel and net vessel. Optimal distance between two groups of purse seine vessels is 1 744. 0 m. When appropriate illumination being 14. 00 lx, effective light dis- tance is 138.3 m, minimum operating distance is 262. 9 m between main light vessel and secondary vessel, 249.4 m between secondary light vessel and net vessel, and 263. 1 m between main light vessel and net vessel. Optimal distance between two groups of purse seine vessels is 276. 6 m.

关 键 词：灯光围网 作业间距 点光源 集鱼灯 海面照度 

分 类 号：S973.4[农业科学—捕捞与储运]