The main important protected species of water ecosystem of the Yellow River should be valuable economic fishes, such as saury and carp and the main protected ecological zones include the wetlands in reservoir area, estuary and channel and water area for sight and recreation. 黄河水生态系统中的主要保护物种应是珍贵经济鱼类北方铜鱼、河口洄游鱼类刀鱼、鲤鱼等,主要保护的生态区包括库区湿地、河口湿地、河道湿地以及景观娱乐水域等。
Based on the result of surveying Pacific Saury ( Cololabis saira) in northwest Pacific in 2003~ 2004, this paper analyzed the relationship between the distribution of fishing ground of Pacific Saury and SST. 根据2003~2004年西北太平洋秋刀鱼资源调查结果,对西北太平洋秋刀鱼渔场分布及其与海水表层温度(SST)的关系进行分析。
Then all the parts through the coincidence, concentric, parallel, such as command assembly tangent assembly into a complete saury grade machine. 再将所有部件通过重合、同心、平行、相切等装配命令装配成一个完整的秋刀鱼选别机。
The square hair originating in Japan, South Korea and Taiwan after gradually been adopted in China since 2001, with saury production, production increased year after year. 该种方发最早起源于日本,后逐步被韩国及台湾所采用,我国与2001年开始秋刀鱼生产,产量逐年上升。
This paper summarizes the development of domestic and international fishery machinery at home and abroad are introduced, and several of the pump suction fish, development and development of saury Marine fish pump suction were described. 本文概述了国内外渔业机械的发展情况,并介绍了几种国内外吸鱼泵的研制及发展情况,对秋刀鱼船用吸鱼泵进行了描述。
At present our country mainland saury homework ships the port body nets operation method is. 目前我国大陆秋刀鱼作业船只所采用的是舷体网作业方法。
But as the yield increase, artificial classification packing processing methods more again apply to the modernization of production, which seriously affected the saury ships the efficiency of operations. 但是随着产量增加,人工选别再装箱的处理方法越来越不适用于现代化的生产,严重影响了秋刀鱼船只作业时的效率。