Abstract
The primary goal of this study is to survey a fisheries resources in south coastal sea area of Jeju island. The method of trawl survey conduct to fishing survey through bottom trawl net. The surveys are carried out 4 days on 14-15th Aug. 2020 and 8-9th Aug. 2021 by the training ship “Sae Dong Baek” of Chonnam National University. The total fish species caught by bottom trawl net during 4 times survey for 4 days were 34 species and the total weight was 81.585Kg. In the caughted species the first superior species was Solenocera melantho, 84(16%), the next Zenopsis nebulosa, 79(15%), the third Trachurus japonicus 73(14%). In individual numbers the most fish body length size caught by bottom trawl net was between 201mm and 250mm and the least fish body length size was between 10mm and 50mm. The fish weight size caught by bottom trawl net was 101~200g(38%), 31~40g(12%), 201~300g(10%), respectively. And the size range caught by bottom trawl was between 10g and 1,000g. The catch is showing a decreasing trend every year. In order to efficiently protect and manage our fishing grounds we need continuous research and this study is expected to be provided as basic data for this.
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