DOI QR코드

DOI QR Code

A Study of Growth and Age Structure for Chub Mackerel, Scomber japonicus Caught by a Large Purse Seine in the Korean Waters

한국 주변해역에서 대형선망으로 어획한 고등어(Scomber japonicus)의 성장과 연령구조 연구

  • Jung, Kyung-Mi (South Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Kim, Heeyong (South Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Kang, Sukyung (Fisheries Resources Management Division, National Institute of Fisheries Science)
  • 정경미 (국립수산과학원 남해수산연구소 자원환경과) ;
  • 김희용 (국립수산과학원 남해수산연구소 자원환경과) ;
  • 강수경 (국립수산과학원 연근해자원과)
  • Received : 2020.11.20
  • Accepted : 2021.04.07
  • Published : 2021.06.30

Abstract

We examined the growth and age structure for chub mackerel caught by a large purseseine in the Korean waters from January to December 2015. A total of 459 specimens were used for otolith analysis, ranging from 19.6 cm to 46.0 cm in fork length. Translucent zone was regarded as an annual mark, and age was counted using the information of the number of translucent zone, capture date, edge type of the otolith and nominal birthdate of 1 January. Annuli in otoliths were mainly formed in May, coinciding with the spawning season. Estimated ages were 0~6 years, and the von Bertalanffy growth models were not significantly different between male and female. Sex-combined growth model was obtained as FLt=39.3×{1-exp[-0.90×(t+0.033)]}. Among the chub mackerel caught in 2015, the age 2 group had the highest proportion (30.9%), and the age 0 to 2 group accounted for 88.5% of the total catch.

본 연구는 2015년 1월부터 12월까지 한국 주변해역에서 대형선망어업으로 어획된 고등어의 성장과 연령구조를 분석하였다. 연령분석을 위해 총 459개의 이석이 사용되었고, 가랑이체장의 범위는 19.6~46.0 cm였다. 연령은 투명대의 수, 채집일, 이석 가장자리 형태, 1월 1일의 명목생일에 대한 정보를 이용하여 판독하였다. 윤문은 고등어의 산란시기인 5월에 형성되었다. 연령은 0세부터 6세까지 추정되었고, von Bertalanffy 성장식은 성별 간 유의한 차이가 나타나지 않았다. 암컷과 수컷을 모두 합한 성장식은 FLt=39.3×{1-exp[-0.90×(t+0.033)]}으로 도출되었다. 2015년 대형선망 어획물의 연령구조를 살펴본 결과, 2세군의 어획비율이 30.9%로 가장 높았고, 0~2세군은 전체 어획물의 88.5%로 대부분을 차지하였다.

Keywords

Acknowledgement

본 논문은 국립수산과학원 수산과학연구사업인 '남해 연안어업 및 환경생태 조사(R2021034)'의 지원으로 수행되었으며, 논문의 질적 완성도를 높여주신 세 분의 심사위원분께 진심으로 감사의 인사를 드립니다.

References

  1. Ann, H.B. 1971. Studies on the age and growth of the Pacific mackerel, Scomber japonicus(Houttyn). Bull. Natl. Fish. Res. Dev. Agency, 7: 7-24.
  2. Basilone, G., M. Barra, R. Ferreri, S. Mangano, M. Pulizzi, G. Giacalone, I. Fontana, S. Aronica, A. Gargano, R. Paola, S. Genovese and A. Bonanno. 2020. First annulus formation in the European anchovy; a two-stage approach for robust validation. Sci. Rep., 10: 1079. https://doi.org/10.1038/s41598-020-58174-5.
  3. Chilton, D.E. and R.J. Beamish. 1982. Age determination methods for fishes studied by the Ground fish Program at the Pacific Biological Station. Can. Spec. Publ. Fish. Aquat. Sci., 60: 1-102.
  4. Choi, Y.M. 2003. Stock assessment and management implications of chub mackerel, Scomber japonicus in Korean waters. Doctoral Thesis, Pukyong national university, Busan, Korea, 130pp.
  5. Collette, B.B. and C.E. Nauen. 1983. FAO species catalogue, Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. FAO Fish. Synop., 125: 1-137.
  6. Gang, L.I., C. Xinjun and F. Bo. 2008. Age and growth of chub mackerel (Scomber japonicus) in the East China and Yellow Seas using sectioned otolith samples. J. Ocean. Univ. Chin., 7: 439-446. https://doi.org/10.1007/s11802-008-0439-9
  7. Higuchi, T., S. Ito, T. Ishimura, Y. Kamimura, K. Shirai, H. Shindo, K. Nishida and K. Komatsu. 2019. Otolith oxygen isotope analysis and temperature history in early life stages of the chub mackerel Scomber japonicus in the Kuroshio-Oyashio transition region. Deep Sea. Res. Part II, 169-170. https://doi.org/10.1016/j.dsr2.2019.104660.
  8. Hwang, S.D., J.Y. Kim and T.W. Lee. 2008. Age, growth, and maturity of chub mackerel off Korea. N. A. J. Fish. Man., 28: 1414-1425. https://doi.org/10.1577/M07-063.1.
  9. ICES (International Council for the Exploration of the Sea). 2018. Workshop on age reading of horse mackerel, Mediterranean horse mackerel and blue jack mackerel(Trachurus trachurus, T. mediterraneus and T. picturatus) (WKARHOM3). ICES CM 2018/EOSG, 28: 1-186.
  10. ICES (International Council for the Exploration of the Sea). 2019. Handbook of fish age estimation protocols and validation methods. ICES cooperative research report. NO. 346. 180pp.
  11. Kang, S., K.M. Jung and H.K. Cha. 2015. First annulus formation and age determination for otoliths of chub mackerel Scomber japonicus. Korean J. Fish. Aquat. Sci., 48: 760-767. https://doi.org/10.5657/KFAS.2015.0760
  12. Kim, S., J. Kim, W.T. Stockhausen, C. Kim, S. Kang, H. Cha, H. Ji, S. Jang and H. Baek. 2019. Characteristics of the eggs and larval distribution and transport process in the early life stage of the chub mackerel Scomber japonicus near Korean waters. Korean J. Fish. Aquat. Sci., 52: 666-684. https://doi.org/10.5657/KFAS.2019.0666.
  13. Kim, S., J. Kim, H. Park, S. Kang, H. Cha and H. Baek. 2020. Maturity and spawning of the chub mackerel Scomber japonicus in the Korean waters. Korean J. Fish. Aquat. Sci., 53: 9-18. https://doi.org/10.5657/KFAS.2020.0009.
  14. Ku, J.F. and W.N. Tzeng. 1985. Age and growth of common mackerel(Scomber japonicus) in the waters of Northeastern Taiwan, with particular reference to the subpopulation discrimination. J. Fish. Soc. Taiwan, 12: 1-11. https://doi.org/10.29822/JFST.198512.0001.
  15. Lee, H.H., S. Kang, K.M. Jung, S. Jung, D. Sohn and S. Kim. 2017. Observed pattern of diel variation in specific gravity of Pacific mackerel eggs and larvae. Ocean Polar Res., 39: 257-267. https://doi.org/10.4217/OPR.2017.39.4.257.
  16. Matta, M.E. and D.K. Kimura. 2012. Age determination manual of the Alaska Fisheries Science Center Age and Growth Program. NOAA Professional Paper NMFS, 13: 1-97.
  17. Murua, H., G. Kraus, F. Saborido-Rey, P.R. Witthames, A. Thorsen and S. Junquera. 2003. Procedures to estimate fecundity in marine fish species in relation to their reproductive strategy. J. Northwest. Atl. Fish. Sci., 33: 33-54. https://doi.org/10.2960/J.v33.a3
  18. O'Sullivan, S. 2007. Fisheries long term monitoring program-Fish age estimation review. Department of Primary Industries and Fisheries, Brisbane, Australia, 22pp.
  19. Panfili, J., H. Pontual, H. Troadec and P.J. Wright. 2002. Manual of fish sclerochronology. Ifremer-IRD coedition, Brest, France, 463pp.
  20. R Development Core Team. 2020. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. Available from: http://www.R-project.org/.
  21. Shiraishi, T., K. Okamoto, M. Yoneda, T. Sakai, S. Ohshimo, S. Onoe, A. Yamaguchi and M. Matsuyama. 2008. Age validation, growth and annual reproductive cycle of chub mackerel Scomber japonicus off the waters of northern Kyushu and in the East China Sea. Fish. Sci., 74: 947-954. https://doi.org/10.1111/j.1444-2906.2008.01612.x
  22. von Bertalanffy, L. 1938. A quantitative theory of organic growth (inquiries on growth laws. II). Human Biol., 10: 181-213.
  23. Walsh, C., P. Horn, J. McKenzie, C.O. Maolagain, D. Buckthought, C. Sutton and H. Armiger. 2014. Age determination protocol for snapper (Pagrus auratus). New Zealand fisheries assessment report, 51: 1-33.
  24. Watanabe, C. and A. Yatsu. 2004. Effects of density-dependence and sea surface temperature on interannual variation in lengthat-age of chub mackerel (Scomber japonicus) in the Kuroshio-Oyashio area during 1970-1997. Fish. Bull., 102: 196-206.