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Species Composition of Ichthyoplankton in the Coastal Water between Yeosu and Namhae, Korea

여수와 남해 연안에 분포하는 부유성 난 및 자치어의 종조성

  • KOH, Su-Jin (National Institute of Fisheries Science) ;
  • SEO, Su-Hyeon (Hampyeong County Office) ;
  • LEE, Sung-Hoon (Department of Fisheries Sciences, Chonnam National University) ;
  • YU, Tae-Sik (Department of Fisheries Sciences, Chonnam National University) ;
  • HAN, Kyeong-Ho (Department of Fisheries Sciences, Chonnam National University)
  • Received : 2019.07.16
  • Accepted : 2019.09.25
  • Published : 2019.09.30

Abstract

Species composition and seasonal variation of fish eggs and larvae were investigated from 2017 to 2018. During the study period, the fish eggs were identified as belonging to 6 taxa. The dominant species of fish eggs were Engraulis japonicus, Leiognathus nuchalis, and Konosirus punctatus. These three species accounted for 96% of the total number of individuals collected. The collected larval fishes were identified into 17 taxa, 11 families, and 5 orders. The dominant species of larval fish were Engraulis japonicus, Leiognathus nuchalis, and Konosirus punctatus. These three species accounted for 70% of the total number of individuals collected. The diversity index of the larval fishes was the highest in summer (H'=1.78) and the lowest in winter (H'=1.34). The economically important species in this area were Engraulis japonicus, Konosirus punctatus, Sebastes schlegelii, Cynoglossus joyneri and Stephanolepis cirrhifer.

이 연구는 여수시와 남해군 연안에서 2017년부터 2018년까지 2년에 걸쳐 계절별로 총 8회 수집하였다. 연구기간 동안 7개의 조사지점에서 출현한 부유성 난은 총 6개 분류군으로, 우점종은 멸치, 주둥치, 전어였고, 이 3종은 총 개체수의 96%를 차지하였다. 연구기간 중 출현한 자치어는 총 5목 11과 17개 분류군으로 우점종은 멸치, 주둥치, 전어로 부유성 난과 같았으며, 이 3종은 총 개체수의 70%로 높은 비율이었다. 자치어의 다양성 지수는 여름에 가장 높았고(H'=1.78) 겨울에 가장 낮았다(H'=1.34).

Keywords

References

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