- Volume 51 Issue 1
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A change of rigging method for purse seine gear of Korea tuna purse seine fishery in the Western and Central Pacific Ocean
중서부태평양 한국 다랑어 선망어업에서의 어구 구성의 변화
- Received : 2014.10.21
- Accepted : 2015.02.02
- Published : 2015.02.28
This paper conducted research on identifying the process of change in fishing gear and organizing the function of periodically-used fishing gear types through net plan and computer simulation by selecting the design of the four types of fishing gear used for the Korea tuna purse seiner in the Western and Central Pacific Ocean, which 1,000 G/T class and whose length over all 60 m class. In the late 1980s, the length of the tuna purse gear was 1,939 m and the design depth was 160 m, but currently, the length and the design depth are 2,515 m and 230 m, respectively. As a result of the simulation, the expansion of the fishing gear increased buoyance, sinking force, sinking depth, surrounded area, and purse wire continuously. Recently, the maximum tension of the currently used purse wire of tuna purse seiner is 23.5 tons and is close to 25.4 tons which is the maximum lift capacity of WS454 winch. The way to improve fishing gear should be proceeded to increase sinking speed rather than expand the size of fishing gear.
Tuna purse seine gear;Korea tuna purse seine;Purse seine
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