Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Seasonal Variation of Species Composition of Fish in the Coastal Waters off Wolseong Nuclear Power Plant, East Sea of Korea by Otter Trawl Survey

월성원자력발전소 주변해역에서 저층트롤에 의해 어획된 어류의 종조성

  • Choi, Jung Hwa (Fisheries Resources Research Division, National Fisheries Research and Development Institute) ;
  • Kim, Jung Yun (Department of Marine Biology, Pukyong National University) ;
  • Kim, Jin Koo (Department of Marine Biology, Pukyong National University) ;
  • Kim, Jung Bin (Southeastern Sea Fisheries Research Institute, National Fisheries Research and Development Institute)
  • 최정화 (국립수산과학원 자원관리과) ;
  • 김정윤 (부경대학교 자원생물학과) ;
  • 김진구 (부경대학교 자원생물학과) ;
  • 김종빈 (남서해수산연구소 아열대수산연구센터)
  • Received : 2014.08.19
  • Accepted : 2014.10.15
  • Published : 2014.10.31
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Abstract

We examined seasonal variation in fish species composition in coastal waters near Wolseong Nuclear Power Plant in the East Sea of Korea. A total of 72 species, 39 families, 14 orders, 46,214 individuals, and 4,639,667 g were collected. Glyptocephalus stelleri was the most dominant species by number of individuals (35%), followed by Clupea pallasii (26%). Liparis tanakai and Lophius litulon were the dominant species by biomass, accounting for 46% and 28%, respectively. We showed that bottom salinity and temperature are the most important environmental factors influencing fish species composition. Although bottom salinity did not differ statistically among seasons or stations, we detected some variation among stations. Additionally, bottom temperature differed among seasons and stations (P<0.05), affecting numbers of individuals and biomass. Thus, seasonal variation in fish assemblages can be classified into two groups: spring/summer and autumn/winter.

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References

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