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Catch characteristics of the gill nets for flounder by the physical property of net filament in the East Sea

그물실의 물성에 따른 동해안 가자미 자망어업의 어획 특성

  • Bae, Bong-Seong (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Lim, Ji-Hyun (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Park, Seong-Wook (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Kim, Seong-Hun (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Cho, Sam-Kwang (Fisheries System Engineering Division, National Fisheries Research & Development Institute)
  • 배봉성 (국립수산과학원 시스템공학과) ;
  • 임지현 (국립수산과학원 시스템공학과) ;
  • 박성욱 (국립수산과학원 시스템공학과) ;
  • 김성훈 (국립수산과학원 시스템공학과) ;
  • 조삼광 (국립수산과학원 시스템공학과)
  • Received : 2013.04.29
  • Accepted : 2013.05.06
  • Published : 2013.05.31

Abstract

Physical characteristics of net filament were investigated to test the fishing capacity of gill nets due to the flexibility difference between nylon and biodegradable nets (PBS 95%+PBAT 5% and PBS 80%+PBAT 20%). In addition, a total of 16 fishing experiments were conducted in the coastal waters of Jeongja, Ulsan, from August 10 to October 20, 2011 and from September 11 to November 3, 2012. The test results showed that nylon net filament exhibited more flexibility than biodegradable net filament when they were wet. Accordingly, the longer submerged time, the more fishing capacity the nylon gill nets demonstrated in comparison with the biodegradable gill nets. A total of 16 species were caught in 2011 with the nylon gill nets (1,323 fishes, weighing 342,885g) and the biodegradable gill nets (958 fishes, weighing 236,857g). 15 species were caught in 2012 with the nylon gill nets (1,582 fishes, weighing 448,360g) and the biodegradable gill nets (1,431 fishes, weighing 406,590g). Thus catch weights and the number of fish caught produced by the nylon nets were 1.45 times and 1.38 times higher than those of the biodegradable nets produced in 2011, and 1.1 times and 1.11 times higher in 2012. A test on the target species, pointhead flounder (Cleisthenes pinetorum) has similar results. The flexibility of a net was proved to be related to the fishing capacity, and as a result, it is concluded that the higher flexibility, the higher fishing capacity.

Acknowledgement

Grant : 친환경 수산자재 및 어구어법 개발

Supported by : 국립수산과학원

References

  1. Ayaz A, Acarli D, Altinagac U, Ozekinci U, Kara A and Ozen A. 2006. Ghost fishing by monofilament and multifilament gill nets in izmir bay. Turkey Fish Res 79, 267-271. https://doi.org/10.1016/j.fishres.2006.03.029
  2. Bae BS, An HC, Jeong EC, Park HH, Park SW and Park CD. 2010. Fishing power estimation of biodegradable traps in the East Sea. J Kor Soc Fish Tech 46, 292-301. https://doi.org/10.3796/KSFT.2010.46.4.292
  3. Bae BS, An HC, Park SW, Park HH and Chun YY. 2009. Catch characteristics of shrimp trap by submerged time. J Kor Soc Fish Tech 45, 201-210. https://doi.org/10.3796/KSFT.2009.45.4.201
  4. Bae BS, Cho SK, Park SW and Kim SH. 2012. Catch characteristics of the bioderadable gill net for flounder. J Kor Soc Fish Tech 48, 201-210. https://doi.org/10.3796/KSFT.2012.48.4.310
  5. Brown J and Macfadyen G. 2007. Ghost fishing in European waters: Impacts and management responses. Marine Policy 31, 488-504. https://doi.org/10.1016/j.marpol.2006.10.007
  6. National Fisheries Research & Development Institute (NFRDI). 2002. Fishing gear of Korea. Hangul Graphics, Busan, 513-515.
  7. Park SK, Park SW and Kwon HJ. 2009. Economic analysis of biodegradable snow crab gill net model project. J Kor Soc Fish Tech 45, 276-286. https://doi.org/10.3796/KSFT.2009.45.4.276
  8. Park SW, Park CD, Bae JH and Lim JH. 2007a. Catching efficiency and development of the biodegradable monofilament gill net for snow crab (Chionoecetes opilio). J Kor Soc Fish Tech 43, 28-37. https://doi.org/10.3796/KSFT.2007.43.1.028
  9. Park SW, Bae JH, Lim JH, Cha BJ, Park CD, Yang YS and Ahn HC. 2007b. Development and physical properties on the monofilament for gill nets and traps using biodegradable alophatic polybutylene succinate resin. J Kor Soc Fish Tech 43, 281-290. https://doi.org/10.3796/KSFT.2007.43.4.281
  10. Park SW and Bae JH. 2008. Weather ability of biodegradable polybutylene succinate (PBS) monofilaments. J Kor Soc Fish Tech 44, 265-272. https://doi.org/10.3796/KSFT.2008.44.4.265
  11. Park SW, Kwon HJ and Park SK. 2010. Estimation of economic benefits of biodegradable fishing net by using contingent valuation method (CVM). J Kor Soc Fish Tech 46, 265-273. https://doi.org/10.3796/KSFT.2010.46.3.265
  12. Revill AS and Dunlin G. 2003. The fishing capacity of gillnets lost on wrecks and on open ground in UK coastal waters. Fish Res 64, 107-113. https://doi.org/10.1016/S0165-7836(03)00209-1
  13. Ryu KE and Kim YB. 1998. Biodegradation of polymers. Polym Sci Tech 9, 464-472.
  14. Tschernij V and Larsson PO. 2003. Ghost fishing by lost gill nets in the baltic sea. Fish Res 64, 151-162. https://doi.org/10.1016/S0165-7836(03)00214-5

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