Ocean and Polar Research

  • 제39권1호
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  • Pages.23-34
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  • 2017
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  • 1598-141X(pISSN)
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  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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섬진강 하구역에 서식하는 대형저서동물군집의 분포양상

Spatial Distributions of Macrozoobenthic Communities in the Seomjin River Estuary

  • 서진영 (한국해양과학기술원 남해특성연구센터) ;
  • 김정현 (한국해양과학기술원 남해특성연구센터) ;
  • 최진우 (한국해양과학기술원 남해특성연구센터)
  • Seo, Jin-Young (South Sea Environment Research Center, South Sea Research Institute, KIOST) ;
  • Kim, Jung-Hyun (South Sea Environment Research Center, South Sea Research Institute, KIOST) ;
  • Choi, Jin-Woo (South Sea Environment Research Center, South Sea Research Institute, KIOST)
  • 투고 : 2017.02.14
  • 심사 : 2017.03.08
  • 발행 : 2017.03.30
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초록

This study was carried out to investigate the spatial distributions of the macrobenthic communities in the Seomjin River estuary from May, 2015 to May, 2016. The number of species was 163, the mean density was $1,865ind.m^{-2}$, biomass was $204g{\cdot}wet\;m^{-2}$ during this study period. The highest number of species and density appeared among polychaetes whereas the most biomass was contributed by mollusks due to the presence of Corbicula japonica in every season. The study area was divided into 3 regions with similar benthic fauna responding to the gradient of the salinity. Praxillella praetermissa was the dominant species in regions of over 30 psu during all seasons. C. japonica and Hediste diadroma were dominant in the upper regions of the Seomjin River where the salinity was less than 10 psu. Heteromastus filiformis showed the broadest distributional range and dominated in all seasons except for the most upper stream at st. 7. From the result of the Bio-Env analysis, salinity was the most important environmental factor affecting the formation of macrobenthic communities in the study area, and salinity and TOC were the highest contributors to the macrobenthic communities. From the correlation analysis between major dominant species and environmental factors, C. japonica, Prionospio japonica and H. diadroma showed a negative correlation with salinity, while P. praetermissa and Scolectoma longifolia showed a positive correlation. H. filiformis was little affected by salinity but showed a positive correlation with TOC or silt content of sediment.

키워드

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피인용 문헌

  1. Distribution Patterns of Macrobenthos during Recent Summer Seasons at the Bongam Sand Tidal Flat of Masan Bay, Korea vol.36, pp.4, 2018, https://doi.org/10.11626/KJEB.2018.36.4.626