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

  • 제55권3호
  • /
  • Pages.233-242
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  • 2019
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  • 2671-9940(pISSN)
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  • 2671-9924(eISSN)
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)
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광양만 연안에 분포하는 부유성 난 및 자치어의 종조성과 양적변동

Quantitative fluctuation and species composition of ichthyoplankton in Gwangyang Bay, Korea

  • CHU, Bo-Ra (Department of Aqualife Science, Chonnam National University,) ;
  • LEE, Sung-Hoon (Department of Aqualife Science, Chonnam National University) ;
  • YU, Tae-Sik (Department of Aqualife Science, Chonnam National University,) ;
  • HWANG, Tae-Yong (Ocean Co., Ltd.) ;
  • HAN, Kyeong-Ho (Department of Aqualife Science, Chonnam National University)
  • 투고 : 2019.05.15
  • 심사 : 2019.08.09
  • 발행 : 2019.08.31
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초록

Species composition and yearly variation of fish eggs and larval fishes were investigated from 2014 to 2016. During the study period, the fish eggs were identified as belonging to 14 taxa. The dominant species of fish eggs were Leiognathus nuchalis, Engraulis japonicus, and Konosirus punctatus. These three species accounted for 97.4% of the total number of individuals collected. The collected larval fishes were identified into 37 taxa, 22 families, and seven orders. The dominant species of larval fish were Leiognathus nuchalis, and Gobiidae fishes. These three species accounted for 85.4% of the total number of individuals collected. The diversity index of the larval fishes was the highest in 2014 (H' = 1.60) and the lowest in 2015 (H' = 1.15). The evenness index was the highest in 2016 (J = 0.51) and the lowest in 2015 (J = 0.39). The dominance index was the highest in 2015 (D = 83.5%) and the lowest in 2016 (D = 70.9%). In addition, the economically important species in this area were Engraulis japonicus, Konosirus punctatus, Hippocampus coronatus, Sebastes schlegelii, Acanthopagrus schlegeli, and Cynoglossus joyneri.

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