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Seasonal variations in species composition of fish assemblage collected by trammel net in coastal waters of the East Sea

동해 연안 자망에서 채집된 어류 종조성의 계절변동

  • Choi, Kwang Ho (Fisheries Resources Research Division, National Fisheries Research & Development Institute) ;
  • Han, Moon Hee (Marine Bioscience and Technology, Graduate School, Gangneung-Wonju National University) ;
  • Kang, Chang-Keun (POSTECH Ocean Science & Technology Institute, Pohang University of Science & Technology (POSTECH)) ;
  • Park, Joo Myun (Division of Technology, Chonnam National University) ;
  • Choi, Jung Hwa (Fisheries Resources Research Division, National Fisheries Research & Development Institute) ;
  • Park, Jeong-Ho (Fisheries Resources & Environment Division, East Sea Fisheries Research Institute, NFRDI) ;
  • Sohn, Myong Ho (Fisheries Resources & Environment Division, East Sea Fisheries Research Institute, NFRDI) ;
  • Baeck, Gun Wook (Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University) ;
  • Choy, Eun Jung (Korea Polar Research Institute, KIOST) ;
  • Lee, Chung Il (Department of Marine Bioscience, Gangneung-Wonju National University)
  • 최광호 (국립수산과학원 자원연구과) ;
  • 한문희 (강릉원주대학교 대학원 해양생물공학과) ;
  • 강창근 (포항공과대학교 해양대학원) ;
  • 박주면 (전남대학교 해양기술학부) ;
  • 최정화 (국립수산과학원 자원연구과) ;
  • 박정호 (동해수산연구소 자원환경과) ;
  • 손명호 (동해수산연구소 자원환경과) ;
  • 백근욱 (경상대학교 해양생명과학과) ;
  • 최은정 (극지연구소) ;
  • 이충일 (강릉원주대학교 해양자원육성학과)
  • Received : 2012.09.25
  • Accepted : 2012.11.14
  • Published : 2012.11.30

Abstract

Seasonal variation in species composition and abundance of fish assemblage in the north coast (NC: Ayajin) and central coast (CC: Hupo) of the East Sea were calculated using samples collected by trammel net during 2011-2012. A total of 20 species from NC and 17 species from CC were collected. Of the fishes collected, the dominant fish species were Glyptocephalus stelleri and Careproctus rastrinus in the NC, and Dasycottus setiger and G. stelleri in the CC. These 2 fishes accounted for 71.7% and 81.0% of the total number of individuals collected in the NC and CC, respectively. The number of fish species, number of individuals, biomass and species diversity indices fluctuated with the seasons. The cluster analysis and non-metric multidimensional scaling (MDS) based on Bray-Curtis similarity revealed that the fish assemblages classified into north and central groups. Analysis of similarity percentages of species contributions (SIMPER) indicated that most individual of G. stelleri and Gadus macrocephalus contributed to north group, and D. setiger and G. stelleri in central group, whereas 15 species contributed to 90% of the dissimilarity.

Keywords

Trammel net;Fish assemblage;East Sea;Glyptocephalus stelleri;Dasycottus setiger;Careproctus rastrinus;Gadus macrocephalus

Acknowledgement

Grant : 장기해양생태계 연구: 환경변화와 생태계 반응

Supported by : 한국해양과학기술진흥원, 국립수산과학원

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