绳拖网与普通拖网阻力对比分析  

Contrast of resistance between ropeTrawl and ordinary trawl

作　　者：孙泰昌[1] 崔国平[1] 邹惠君[1] 张锡佳[1] 乔国英[1] 陈家乐 刘全成 刘来军 

机构地区：[1]山东省海洋水产研究所 [2]山东省蓬莱市网具厂

出　　处：《中国水产科学》1998年第2期84-89,共6页Journal of Fishery Sciences of China

基　　金：山东省科委"小型渔船绳拖网试验研究"课题

摘　　要：本文对目大６ｍ、８ｍ、１０．８ｍ的绳拖网分别与疏目拖网、小目拖网的阻力进行了对比分析。据几顶有代表性的网具统计，绳拖网网口周长比同级渔船使用的疏目拖网增大１．１６～１．４３倍，比小目拖网增大１．８８～２．１６倍。网具阻力分别降低３０％～３４％和４０％～４５％，绳拖网阻力小，为大网快拖、增产增收创造了条件。The resistance of rope trawls (mesh sizes are 6、8、10.8m respectively) is compared with that of macromesh trawl and small mesh trawe respectively.According to the statistics,the net mouth circumference of rope trawl is 1.16 to 1.43 times as long as that of the macromesh trawl used in the same class of fishing vessels and is 1.88 to 2.16 times as long as that of the small mesh trawl,while the resistance of the gear reduced by 30%～34% and 40%～45% respectivly.The reduction of resistance of rope trawl lays foundation for fast trawling, high production and rich profit of big trawls.

关 键 词：绳拖网 疏目拖网 小目拖网 线面积 阻力 

分 类 号：S972.13[农业科学—捕捞与储运]