Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Seasonal Fluctuations and Species Composition of Fish Collected by Long-bag Stow Net in Nang-island, Yeosu

여수 낭도 연안에서 낭장망에 어획된 어류의 종조성 및 계절변동

  • Yu, Tae-Sik (Department of Fisheries Sciences, Chonnam National University) ;
  • Youn, Byoung-Il (National Institute of Fisheries Science) ;
  • Kim, Joon (Department of Fisheries Sciences, Chonnam National University) ;
  • Han, Kyeong-Ho (Department of Fisheries Sciences, Chonnam National University)
  • Received : 2020.05.27
  • Accepted : 2020.06.01
  • Published : 2020.06.30
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Abstract

Seasonal fluctuation in abundance and species composition of fish in coastal waters off Nang island were investigated using seasonal samples collected by long-bag stow net in 2017. A total 10,208 fish were sampled and classified into 37 species, 26 families, and 9 orders. The dominant species were Engraulis japonicus (4,886 individuals, 47.9%), Pennahia argentata (842 individuals, 8.2%), and Ilisha elongata (369 individuals, 3.6%). The diversity index was the highest in May (H'=3.23) and the lowest in November (H'=1.24). The dominance index was the highest in November (D=78.7%) and the lowest in May (D=22.4%).

여수 낭도 연안에서 낭장망에 어획된 어류의 종조성 및 계절 변동을 연구하기 위해 2017년에 계절별로 4개의 정점에서 진행하였다. 어획된 어류는 총 9목 26과 37종, 10,208개체가 어획되었다. 농어목이 11과 16종으로 가장 많이 출현하였고, 우점종은 멸치(4,886개체, 47.9%), 보구치(842개체, 8.2%), 준치(369개체, 3.6%) 순이었다. 다양도는 1.24~3.23 범위를 보이며 5월이 가장 높았고, 우점도는 22.4~78.7% 범위를 보이며 11월이 가장 높았다.

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References

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