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近年来,我国各种水库,为发展网箱养鱼和运输事业,增建了不少5～12马力的小型机船。由于这种机船具有一次性投资小、能源省、操作简便、能冲刷网箱的优点,同时尚能兼作运输、带船、送鱼、载网、交通、放网、赶鱼、起鱼等用途,因此,深受生产单位欢迎。为了更进一步地探索小型机船的使用效率,作者分别设计了5～12马力的双船拖网,进行我国主要放养鱼类——鲢鳙鱼的捕捞研究和试验。经过辽宁省红旗水库、山东省王屋水库、安徽省响
In recent years, various kinds of reservoirs in China have built a number of small vessels of 5 to 12 horsepower for the development of cage fish farming and transportation. Because of this one-time boat with a small investment, energy province, easy to operate, can scour the advantages of cages, while still able to double as transport, with the ship, to send fish, netting, transportation, netting, catch fish, fish, etc. Uses, therefore, welcomed by the production units. In order to further explore the use efficiency of small craft, the authors designed double-hull trawling of 5 to 12 horsepower respectively to carry out the fishing research and experiment on the major stocking fish-silver carp and bighead carp in China. After Hongqi Reservoir in Liaoning Province, Shandong Province Wangwu Reservoir, Anhui Province, ring