Community Structure of Macrobenthic Assemblages around Gijang Province, East Sea of Korea

Kim, Daeik; Seo, In-Soo; Moon, Chang-Ho; Choi, Byeong-Dae; Jung, Rae-Hong; Son, Min-Ho

doi:10.7850/jkso.2011.16.2.097

Cited by 7 publications

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“…Number of species, density, and species diversity index of benthic polychaete at each sampling site. ) 순으로 저서다모류의 종수와 서식밀도가 감소하였다 (Paik et al, 2007;Kim et al, 2011).…”

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“…4). 본 연구 해역에서의 주요 우점종은 동일 지역에서 조사된 기존 연구와 큰 차이를 보이지 않았다 (Paik et al, 2007;Kim et al, 2011;Yu et al, 2011). 민얼굴갯지렁이(S. bombyx)는 퇴적상이 자갈이 거의 없는 세립한 사질 퇴적상 지역에서 우점하였으며, 특정시기에 개체수의 변동 폭이 컸다 (Fig.…”

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Environmental Effects on the Benthic Polychaete Communities Around the Power Plant Areas in the East Sea of Korea

Kwon¹,

Lee²,

Yu³

2017

The Sea

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The East Sea is almost entirely composed of sandy facies, and the facies type is the major factor influencing benthic polychaete communities. There have been few studies of the effects of environmental factors on benthic polychaetes in thermal discharge areas consisting of different sediment types. This study identified the spatial distribution patterns based on the species composition and distribution of benthic polychaete communities, and the environmental factors influencing benthic polychaetes near power plants were investigated. The polychaete communities in the Uljin, Hupo, and Gori coastal areas near the power plants in the East Sea were seasonally investigated from August 2006 to February 2013. As a result, 283 species were collected. The dominant species were Spiophanes bombyx, Magelona japonica, Lumbrineris longifolia, and Sternaspis scutata. Spiophanes bombyx was the dominant species at Uljin and Hupo, but M. japonica was the dominant species at Gori. Two dominant species from the coastal waters of the East Sea, Lumbrineris longifolia and M. japonica, were rare in the power plant water intake or drainage areas. Cluster analysis was performed to divide the study area into groups by the total organic carbon content, sediment grain size and facies patterns. This study suggests that the community structures of polychaetes are more affected by the total organic carbon, grain size of sediment and facies than by disturbance from thermal discharge, which only affected the polychaete community near power plant drainage areas.

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