南海底鱼资源八十年代以来正在衰退,而中下层鱼类资源有待开发的潜力巨大,但传统的小网目低网口底拖网却无法捕获这些高水层鱼类。为了减轻南海底鱼资源的捕捞压力,充分合理地利用中下层优质鱼类资源,南海水产研究所渔捞技术研究室与海南省水产局海洋处联合试验了两种南海最大网目尺寸的大型拖网,并获得成功。现在报告如下: The resources of the South Seabed have been declining since the 1980s, but there is great potential to be developed in the middle and lower levels of fish resources. However, trawl trawls at the lower mouths of traditional small-scale networks can not capture these high-water-level fish. In order to reduce fishing pressure on the fish resources in the South China Sea and make full use of the quality fish resources at the middle and lower levels, the South China Sea Fisheries Research Laboratory and the Hainan Provincial Bureau of Fisheries jointly tested two large trawls And be successful. Now report as follows: