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本文报道了使用斯开玛捕捞作业监控仪对太仓浮桥拖网海上作业实测结果,在拖速33~39节条件下,该网浮拖作业网口高度为117~138米,底拖作业网口高度118米。分析讨论了在投放不同曳纲长度时,椭圆形网口形状的变化趋势,其长、短轴之比浮拖作业为051,底拖作业为046。把该网的网具性能和作业参数和550目×300毫米拖网做了比较,结果认为该网对捕捞中上层鱼类有良好性能。
This paper reports the results of the sea operation of Taicang pontoon trawl using the Saimama fishing operation monitoring instrument. Under the conditions of tow speed of 33 ~ 39, the height of the fishing net of this net is 117 ~ 138 M, bottom drag job network port height 11 8 m. The variation trend of the shape of the oval mesh was analyzed and discussed. The ratio of the long and short axes was 0.51 for the dragging and 046 for the dragging. The network performance and operating parameters of the network and the 550 mesh × 300 mm trawl made a comparison, the results that the network of fishing in the upper fish have good performance.