DOI QR코드

DOI QR Code

An experimental study on the mesh size selectivity for whelk (Buccinum opisthoplectum)

세고리물레고둥(Buccinum opisthoplectum)의 망목 크기 선택성에 대한 실험적 고찰

  • KIM, Seonghun (Department of Marine Production System Management, Pukyong National University) ;
  • JUNG, Jung-Mo (Institute of Low-Carbon Marine Production Technology, Pukyong National University) ;
  • BAEK, Sena (Department of Fisheries Physics & system, Pukyong National University)
  • 김성훈 (부경대학교 해양생산시스템관리학부) ;
  • 정정모 (부경대학교 저탄소해양생산기술연구소) ;
  • 백세나 (부경대학교 수산물리학과)
  • Received : 2022.02.03
  • Accepted : 2022.02.24
  • Published : 2022.02.28

Abstract

In this study, the selection action on the mesh in the net pot for whelk (Buccinum opisthoplectum) is experimentally considered, and the selectivity was compared by the SELECT model and the Nashimoto's method with the probability model according to the contact shape of the mesh and the whelk. The experiments of the mesh size selectivity was conducted for two mesh sizes: 70 mm (inner stretched size 65.4 mm) and 44 mm (inner stretched size 39.5 mm). Selectivity experiments were conducted three times in total for each mesh size used 264 whelks. In addition, Nashimoto's method analyzed the retention probability using probability model for whether the mesh passed or not based on the carapace width of the whelk. As a result of the selectivity analysis, the 50% selection carapace width for the mesh size of 70 mm was similar to 43.62 mm in the SELECT model and 42.64 mm in the Nashimoto's method. However, the 44 mm mesh with relatively small mesh size showed differences of 40.01 mm and 26.80 mm, respectively. As for the mesh size selectivity of whelk, it was found that the smaller the mesh size, the lower the selectivity. In addition, in the selectivity study on the mesh size of whelk, an evaluation method that closely considers the contact shape between the mesh and the target species is required.

Keywords

Acknowledgement

이 논문은 2021학년도 부경대학교의 지원을 받아 수행된 연구임(CD20210994).

References

  1. Fujimori Y and Tokai T. 2001. Estimation of gill net selectivity curves by maximum likelihood method. Fish Sci 67, 644-654. https://doi.org/10.1046/j.1444-2906.2001.00301.x.
  2. Kim S, Jeong SJ, Park CD and Kim P. 2020. Study on the mesh selectivity of a drum shaped pot for finely-striate buccinum (Buccinum striatissimum) in the eastern coastal waters of Korea. J Korean Soc Fish Ocean Technol 56, 193-201. https://doi.org/10.3796/KSFT.2020.56.3.193.
  3. Korean Statistical Inormation Service (KOSIS), 2021. Korean statistical information service, Fishery production survey. Retrieved form http://kosis.kr/statisticsList/statisticsList_01List.jsp?vwcd=MT_ZTITLE&parentId=F on 2019 to 2021. Accessed 27 Dec 2021.
  4. Michine A, Tameishi T and Murayama T. 2002. The management of fishery resource of whelk Buccinum striatissimum in the whelk basket net fishery in the sea area near Oki island. Report Shimane Pref Fish Exp St 10, 1-9.
  5. Millar RB and Fryer RJ. 1999. Estimating the size-selection curves of towed gears, traps, nets and hooks. Rev Fish Biol Fish 9, 89-116. https://doi.org/10.1023/A:1008838220001.
  6. Nashimoto K, Suzuki K, Takagi T, Motomatsu K and Hiraishi T. 1995. Selectivity of traps for whelks Neptunea arthritica. Nippon Suisan Gakkaishi 61, 525-530. https://doi.org/10.2331/suisan.59.1313.
  7. National Fisheries Research and Development Institute (NFRDI). 2000. Commercial molluscs from the freshwater and continental shelf in Korea. Kudeok Print Publishing Co., Busan, 86-87.
  8. Okutani T. 2000. Marine Mollusks in Japan. Tokai Univ Press, Tokyo, 488-489.
  9. Park CD, Bae JH, Cho SK, Cha BJ and Kim HY. 2013. Size selectivity of the dome-shaped pot for whelk Buccinum opisthoplectum in the eastern coastal waters of Korea. J Kor Soc Fish Tech 49, 368-376. https://doi.org/10.3796/ KSFT.2013.49.4.368.
  10. Park HH, Millar RB, An HC and Kim HY. 2007. Size selectivity of drum-net traps for whelk (Buccinum opisoplectum dall) in the Korean coastal waters of the East Sea. Fish Res 86, 113-119. https://doi.org/10.1016/j.fishres.2007.05.008.
  11. Pope JA, Margetts AR, Hamley JM and Akyuz EF. 1975. Manual of methods for fish stock assessment Part III Selectivity of fishing gear. FAO Fisheries Technical Paper 41, 46-46.
  12. Tokai T and Mitsuhashi T. 1998. SELECT model for estimating selectivity curve from comparative fishing experiments. Bull Jpn Soc Fish Oceanogr 62, 235-247.