Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Variations in Demersal Fish Assemblage in the Southern Coast of East Sea, Korea

동해 남부 연안에서 출현하는 저어류 군집구조의 변화

  • Park, Joo Myun (Department of Marine Bioscience, Gangneung-Wonju National University) ;
  • Baeck, Gun Wook (Department of Seafood and Aquaculture Science, College of Marine Science, Gyeonsang National University) ;
  • Huh, Sung-Hoi (Department of Oceanography, Pukyong National University)
  • 박주면 (강릉원주대학교 해양자원육성학과) ;
  • 백근욱 (경상대학교 해양식품생명의학과) ;
  • 허성회 (부경대학교 해양학과)
  • Received : 2018.05.03
  • Accepted : 2018.06.05
  • Published : 2018.08.31
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Abstract

We investigated temporal and depth-related variation in species composition and abundance of the fish assemblage in the southern East Sea. Fish samples were collected seasonally between 2007 and 2008 using a demersal trawl off the southern coast of Korea. We identified 59 fish species belonging to 41 families. The most frequently occurring species was Coelorinchus multispinulosus, followed by Lophius litulon, Acropoma japonicum and Apogon lineatus. The five most abundant species were A. lineatus, A. japonicum, Myctophum nitidulum, Engraulis japonicus and C. multispinulosus, accounting for 87.04% of the total number of individuals collected. The number of species, abundance and diversity fluctuated with sampling location and time. Permutational multivariate analyses of variance revealed that the assemblage structure was influenced by year, season and water depth, with season being the main indicator. These changes were visually emphasized using non-metric multidimensional scaling ordination plots. Fluctuations in assemblage structure were due to differential contributions of the dominant species.

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References

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