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Spatiotemporal Distribution of Macrobenthic Communities in the Coastal Area of Uljin and Its Relation to Environmental Variables
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  • Journal title : Ocean and Polar Research
  • Volume 33, Issue 4,  2011, pp.421-434
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2011.33.4.421
 Title & Authors
Spatiotemporal Distribution of Macrobenthic Communities in the Coastal Area of Uljin and Its Relation to Environmental Variables
Yu, Ok-Hwan; Paik, Sang-Gyu; Lee, Hyung-Gon; Lee, Jae-Hac;
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Although thermal effluent from coastal power plants affects marine ecosystems, few studies have examined the spatiotemporal distribution of macrobenthic communities in a coastal area of Korea with thermal discharge. This study analyzed the species composition and abundance of a macrobenthic community in relation to environmental variables for a period of 1 year. In total 334 macrobenthic faunal species were collected; the mean density was 3,221 ind/. The number of species and the density of macrobenthic fauna increased with distance from the thermal discharge site. Cluster analysis indicated that the macrobenthic community could be divided into two groups: group I in shallow (< 30 m deep) and group II in the outer areas (> 30 m deep). Group I showed the lowest species density and diversity. Four polychaetes, including Magelona japonica, Spiophanes bombyx, Scolotoma longifolia and Chaetozone setosa, all of which have been dominant species since 1987, exhibited higher mean densities in the area distant from the thermal discharge (the outer and north areas). Conversely, the warm-adapted and opportunistic species, such as the amphipods Urothoe convexa and Mandibulophoxus mai, the bivalve Felaniella sowerbyi, and the polychaete Rhynchospio sp., were more abundant in the thermal discharge region. The results of this study indicate that thermal effluent influences macrobenthic communities in the shallow area, while other environmental variables, such as depth, sediment grain size, and TOC, are more important determinants of the macrobenthic communities in deeper regions (> 30 m deep).
East sea;Uljin;thermal effluent;macrobenthos;community;
 Cited by
원자력 발전소의 온배수 배출량 변화에 따른 대형저서동물 군집의 공간 변화,유옥환;이형곤;이재학;김경태;명철수;문형태;변주영;

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울진 바다목장 주변해역 연성기질 조하대에 서식하는 대형저서동물의 군집구조,황강석;서인수;최병미;이한나;오철웅;김미향;최창근;나종헌;

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Spatial Variation in Macrobenthic Communities Affected by the Thermal Discharge Volumes of a Nuclear Power Plant on the East Coast of Korea, Ocean and Polar Research, 2013, 35, 4, 299  crossref(new windwow)
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