Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Transport Process and Directly Entrainment Possibility into the Yellow Sea of Todarodes Pacificus Winter Cohort

살오징어(Todaroes pacificus) 겨울발생군의 이동패턴 및 직접적 황해 유입 가능성

  • Song, Ji-Young (Ocean Climate and Ecology Research Division, National Institute of Fisheries Science) ;
  • Lee, Joon-Soo (Ocean Climate and Ecology Research Division, National Institute of Fisheries Science) ;
  • Kim, Jung-Jin (Fisheries Resources Management Division, National Institute of Fisheries Science) ;
  • Lee, Ho-Jin (Department of Marine Bioscience, Korea Maritime and Ocean University) ;
  • Park, Myung-Hee (Ocean Climate and Ecology Research Division, National Institute of Fisheries Science) ;
  • Han, In-Seong (Ocean Climate and Ecology Research Division, National Institute of Fisheries Science)
  • 송지영 (국립수산과학원 기후변화연구과) ;
  • 이준수 (국립수산과학원 기후변화연구과) ;
  • 김중진 (국립수산과학원 연근해 자원과) ;
  • 이호진 (한국해양대학교 해양생명환경학과) ;
  • 박명희 (국립수산과학원 기후변화연구과) ;
  • 한인성 (국립수산과학원 기후변화연구과)
  • Received : 2016.12.13
  • Accepted : 2017.03.17
  • Published : 2017.04.30
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Abstract

The catch of Todarodes pacificus in the Yellow Sea is commonly known as the winter cohort. So, to understand the transport process of winter cohort of T. pacificus, and to identify whether the simulated individuals which are transported directly into the Yellow Sea (YS) influence these resources immediately, we conducted a Lagrangian-particle-tracking numerical experiments of T. pacificus from 2005 to 2010 using LTRANS and ROMS. The results show that: (1) Most of the released individuals spread out to the open sea by the Kuroshio and the Tsushima Warm Current around 30 days after release. (2) Unlike the hypothesis proposed by Rosa et al. (2011), Around $30-33N^{\circ}$ near Jeju Island simulated the initial position (3) About 0.01% of individuals released in December were transported solely into the YS around 15 days after release. However there were no surviving individuals due to the low temperature less than $12^{\circ}C$. Also the variation of individuals entered into the YS was not significantly correlated with it in YS catches during the experimental period. Therefore, the most of resources in the YS is assumed to be more influenced by diverse factors of the Pacific Ocean and East Sea than the direct transport in the YS of winter cohort.

Keywords

References

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