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Movement of Pacific cod Gadus macrocephalus in the Korean Southeast Sea, ascertained through pop-up archival tags and conventional tags

Pop-up식 전자태그와 재래식 태그로 알게된 한국 남해동부해역 대구 Gadus macrocephalus의 이동

  • LEE, Jeong-Hoon (Southeast Fisheries Research Institute, National Institute of Fisheries Science) ;
  • KIM, Jung Nyun (West Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • LEE, Jae-Bong (Distant Water Fisheries Resources Research Division, National Institute of Fisheries Science) ;
  • CHOI, Jung Hwa (Southeast Fisheries Research Institute, National Institute of Fisheries Science) ;
  • MOON, Seong Yong (Southeast Fisheries Research Institute, National Institute of Fisheries Science) ;
  • PARK, Junsu (Southeast Fisheries Research Institute, National Institute of Fisheries Science) ;
  • KIM, Doo Nam (Distant Water Fisheries Resources Research Division, National Institute of Fisheries Science)
  • 이정훈 (국립수산과학원 남동해수산연구소) ;
  • 김정년 (국립수산과학원 서해수산연구소) ;
  • 이재봉 (국립수산과학원 원양자원과) ;
  • 최정화 (국립수산과학원 남동해수산연구소) ;
  • 문성용 (국립수산과학원 남동해수산연구소) ;
  • 박준수 (국립수산과학원 남동해수산연구소) ;
  • 김두남 (국립수산과학원 원양자원과)
  • Received : 2015.11.02
  • Accepted : 2015.11.25
  • Published : 2015.11.30

Abstract

To estimate the movement of Pacific cod Gadus macrocephalus in the Korean Southeast Sea, three type tags were used. A total of 97 Pacific cod were tagged and released with either archival tags or conventional tags. Of these releases, commercial fishermen recovered thirteen conventional tags, and five of seven pop-up tags transmitted data to Argos satellites. Pacific cod began to move towards East Sea after release, and they spent most of their time at depths of 100 to 300m, water temperatures of 0.8 to $14.0^{\circ}C$. However, geographical ranges of their movement limited to area around the southern East Sea. Pacific cod attached conventional tag were recaptured near the release site(Jinhae Bay: main spawning ground) about one or two year after release. Data obtained from tagging investigations suggest that they migrated annually from spawning ground to habtat of the Korean Southeast Sea.

Keywords

References

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