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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

Abstract

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.

Keywords

Tuna purse seine gear;Korea tuna purse seine;Purse seine

References

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Cited by

  1. Changes in fishing characteristics and distributions of Korean tuna purse seine fishery by oceanographic conditions in the Pacific Ocean vol.52, pp.2, 2016, https://doi.org/10.3796/KSFT.2016.52.2.149
  2. Fishing gear and method and improvement of regulation of the middle sized trawl fishery in the East Sea of Korea vol.52, pp.2, 2016, https://doi.org/10.3796/KSFT.2016.52.2.162
  3. A Study on the Sinking Performance Characteristics of Various Nets Used in Purse Seine Gear vol.30, pp.5, 2018, https://doi.org/10.13000/JFMSE.2018.10.30.5.1714
  4. A Study on the Improvement of Hull-Form Design for Propulsion Type Change of Net Boat Mounted on Tuna Purse Seiner vol.24, pp.6, 2018, https://doi.org/10.7837/kosomes.2018.24.6.810

Acknowledgement

Supported by : 부경대학교