Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
권호 표지
DOI QR코드

DOI QR Code

A study on the improvement of fishing system using miniaturized nets for anchovy boat seine to reduce the fleet size

선단축소형 권현망 어구를 적용한 조업시스템 개선 방안

  • Young-Su AN (Institute of Marine Industry, Gyeongsang National University) ;
  • Bo-Yeon KIM (Ship's Operating Center, Kusan National University) ;
  • Youn-Hyoung CHO (Training ship, Gyeongsang National University) ;
  • Jong-Kap AHN (Institute of Marine Industry, Gyeongsang National University)
  • 안영수 (경상국립대학교 해양산업연구소) ;
  • 김보연 (군산대학교 선박실습운영센터) ;
  • 조윤형 (경상국립대학교 실습선) ;
  • 안종갑 (경상국립대학교 해양산업연구소)
  • Received : 2024.06.27
  • Accepted : 2024.08.08
  • Published : 2024.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study conducted a marine experiment to improve the fishing system using miniaturized nets for anchovy boat seine to reduce the fleet size. As a result, the miniaturized net for anchovy boat seine properly opened the entrance of the bag net using the buoyancy of the flotation for position indication and the setting force of the ground rope without operating a separate fish detecting boat by attaching a large flotation at the entrances of the inside wing net and the bag net. This also enabled an operation type where the entrance of the bag net is confirmed using a flotation for position indication from a netting boat. The time and the number of people used for net casting and net hauling in the marine experiment were average of five minutes and 25-30 minutes, respectively, and 23-30 people for the existent net, while for the miniaturized large-scale net were average of three minutes and 23-25 minutes, respectively, and 19-25 people. This indicates that the operation time was shortened, the number of fish detecting boats was reduced by one boat, and the number of people for fishing work was decreased by four or five people due to the improvement of fishing operation system according to the reduction of fishing net size. As a result of measuring the shaft horsepower during net towing, the maximum net towing horsepower was 250 HP in comparison to the maximum RPM of the engine (1,200 RPM), indicating that the legal horsepower of 250 HP is enough to conduct net towing and the competitiveness of fishing using the net for anchovy boat seine is ensured through operation cost reduction.

Keywords

Acknowledgement

이 연구는 2021년 해양수산부 재원으로 해양수산과학기술진흥원의(전기복합 추진어선의 검증 및 실용화를 위한 기술개발과 체계구축) 지원을 받아 수행된 연구임.

References

  1. An YS, Back YS, Jin SH, Jang CS, Kang MH, Cha BJ, Kin BY, Cha JH and Cho YH. 2018a. The opening efficiency of the existent net of the anchovy boat seine. J Korean Soc Fish Technol 54, 1-11. http://doi.org/10.3796/KSFOT.2018.54.1.001. 
  2. An YS, Back YS, Jin SH, Jang CS, Kang MH, Cha BJ, Cho YH, Kin BY and Cha JH. 2018b. The opening efficiency of the miniaturized large-scale net for anchovy boat seine to reduce the fleet size. J Korean Soc Fish Technol 54, 12-24. http://doi.org/10.3796/KSFOT.2018.54.1.012. 
  3. An YS, Back YS, Jin SH, Jang CS, Kang MH, Cha BJ, Cho YH, Cha JH and Kin BY. 2019. The opening efficiency of the miniaturized small-scale net for anchovy boat seine to reduce the fleet size. J Korean Soc Fish Technol 55, 7-19. http://doi.org/10.3796/KSFOT.2019.55.1.007. 
  4. An YS, Jang CS and Lee JH. 2004. The opening efficiency of half size modified net for the anchovy boat seine. J Korean Soc Fish Technol 40, 255-267.  https://doi.org/10.3796/KSFT.2004.40.4.255
  5. An YS, Jang CS and Lee MK. 2005a. Underwater geometry of the anchovy boat seine in process of the fishing Operation. J Korean Soc Fish Ocean Technol 41, 101-106.  https://doi.org/10.3796/KSFT.2005.41.2.101
  6. An YS, Jang CS and Lee MK. 2005b. Development of the automatic hauling operation system by three boats for anchovy boat seine. J Korean Soc Fish Technol 41, 147-155.  https://doi.org/10.3796/KSFT.2005.41.2.147
  7. Jang CS, Kim YH and An YS. 2000. Improving of the fishing gear and development of the automatic operation system in the anchovy boat seine-I-Underwater geometry of the model net-. J Korean Soc Fish Ocean Technol 36, 299-308. 
  8. Jang CS, Kim YH and An YS. 2001. Improving of the fishing gear and development of the automatic operation system in the anchovy boat seine-III -Underwater geometry of the prototype net-. J Korean Soc Fish Technol 37, 267-274. 
  9. Jang CS, An YS and Kim KH 2005. The opening efficiency of labor saving net for the anchovy boat seine. J Korean Soc Fish Technol 41, 9-16.  https://doi.org/10.3796/KSFT.2005.41.1.009
  10. Lee BK, Yong YR, SU YT and Son BI. 1970. Study on the anchovy boat seine-I-On the hydrodynamic resistance and performance of the conventional gear-. Korean J Fish Aquat Sci 4, 79-91. 
  11. Lee BK, SU YT and Han HS. 1978. Study on the anchovy boat seine-II-On the hydrodynamic resistance and performance of patti-net-. J Korean Soc Fish Technol 14, 63-68. 
  12. Lee BK, SU YT, Yum MG and Han HS. 1979a. Study on the anchovy boat seine-III -Experimental operation of the improved gear, model 79-. J Korean Soc Fish Technol 15, 83-94. 
  13. Lee BK, Han HS, Yoon CA and Kim KH. 1979b. Study on the anchovy boat seine-IV -An experiment to mechanize the hauling operation of bag net-. J Korean Soc Fish Technol 15, 95-100. 
  14. Lee BK, SU YT and Lee JM. 1980a. Study on the anchovy boat seine-V -The physical properties of the improved netting twines to be used in the wing net-. J Korean Soc Fish Technol 16, 17-22. 
  15. Lee BK, Sohn TJ and Roh GC. 1980b. Study on the anchovy boat seine-VI -The physical properties of the improved head rope and ground rope-. J Korean Soc Fish Technol 16, 23-26.