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该文简述了鳀鱼深水层流刺网的结构及特点。两只40马力渔船各带4000目×320目×21.8mm深水层流刺网27片,生产72流次,捕鳀115余吨,产值4.2万元,冷冻后销售利润2.3万元;与小型流刺网比较,产量提高88.2%,延长作业时间20天;与青皮、宝鱼挂网及扒拉网比较,产量提高幅度更大,其经济效益较好。所捕鳀鱼,120～129mm以下低龄鱼体长组占85%,其生长速度很快,在40天里,平均体重增加5.7g,占原体重的44%左右,而且产卵期较长,论证了黄海北部鳀鱼资源丰富,补充群体充足,尚未充分开发利用。为了推动鳀鱼生产大发展,建议今年推广20～30只船,并大力发展鳀鱼加工业,使产加销一体化,提高其经济及社会效益。
The article briefly describes the structure and characteristics of the macrophus sting net. The two 40-horsepower fishing boats each have 27 pieces of 4,000-mesh × 320-mesh × 21.8-mm deep-water stratospheric gill nets with a production flow of 72 and catches 鳀 more than 115 tons with an output value of 42,000 yuan and a sales profit of 32,000 yuan after freezing. Gill nets, the output increased by 88.2%, to extend the operation time of 20 days; and peel, pomfret net and Pa pull net, the yield increased more, its economic benefits are better. Catfish caught, 120 ~ 129mm the following groups of young fish accounted for 85% of the long, the rapid growth in 40 days, the average weight gain of 5.7g, accounting for about 44% of the original body weight, but longer spawning period, It is demonstrated that the mullet in the northern part of the Yellow Sea is rich in resources and sufficient in population, yet it has not yet been fully exploited. In order to promote the great development of catfish production, it is proposed to promote 20 to 30 vessels this year and to vigorously develop the processing industry for catfish so that the production, sales and marketing will be integrated and the economic and social benefits will be raised.