Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Distribution characteristics of egg and ichthyoplankton in the Cheonsu Bay, Korea

천수만 주변해역에 출현하는 부유성 어란 및 자치어의 분포특성

  • Byoung il, YOUN (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Dong hyuk, CHOI (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Yoon seok, CHOI (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Seung Hwan, LEE (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Dae hyeon, KWON (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Maeng jin, KIM (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, National Institute of Fisheries Science)
  • 윤병일 (국립수산과학원 서해수산연구소) ;
  • 최동혁 (국립수산과학원 서해수산연구소) ;
  • 최윤석 (국립수산과학원 서해수산연구소) ;
  • 이승환 (국립수산과학원 서해수산연구소) ;
  • 권대현 (국립수산과학원 서해수산연구소) ;
  • 김맹진 (국립수산과학원 서해수산연구소)
  • Received : 2022.07.05
  • Accepted : 2022.11.28
  • Published : 2022.11.30
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Abstract

To provide information needed for managing fish resources and protecting the ecosystem of Cheonsu Bay, bimonthly variations in species composition and abundance of fish eggs and larvae were investigated. The samples were collected by using bongo net at three different stations from February 2020 to December 2021. Fish eggs were divided into Engrualis japonicas and unidentified eggs, of which Engragulis japonicus accounted for 85.6% of the total eggs collected. A total of 21 species representing 17 families and 6 orders were collected. The three dominant species were Gobiidae spp, Thryssa hamiltonii and E. japonicus and these three species accounted for 74.1% in the total number of individuals. The number of species was highest in August, 2020 and lowest in February, 2020 and 2021; the number of individuals was highest in August, 2020 and lowest in February, 2020. Temporal changes in the abundances of pelagic eggs and larval fishes corresponded with temperature.

Keywords

Acknowledgement

이 연구는 국립수산과학원 수산과학연구사업(R2022036)의 지원에 의해 수행되었습니다.

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