[논문]원자력발전소의 온배수 배출해역에서 대형 저서동물 군집구조의 차이

맹준호; 김근용; 김영윤; 손명백; 김진희; 손민호

doi:10.7846/jkosmee.2015.18.3.157

[국내논문] 원자력발전소의 온배수 배출해역에서 대형 저서동물 군집구조의 차이
Difference in Macrobenthic Community Structures at Thermal Effluent Discharge Areas of Two Nuclear Power Plants in Korea 원문보기

한국해양환경ㆍ에너지학회지 = Journal of the Korean Society for Marine Environment & Energy, v.18 no.3, 2015년, pp.157 - 165

맹준호 (한국환경정책.평가연구원) , 김근용 (해양생태기술연구소) , 김영윤 (해양생태기술연구소) , 손명백 (한국선급) , 김진희 (해양생태기술연구소) , 손민호 (해양생태기술연구소)

초록
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본 연구는 고리원자력발전소와 신고리원자력발전소로부터 배출되는 온배수의 영향을 받는 해역에서 퇴적물 특성과 대형 저서동물의 군집구조를 조사하고 비교하였다. 두 배출해역의 퇴적물 특성들 중에서 모래와 펄, 유기물의 함량이 통계적으로 유의한 차이를 보였다. 대형 저서동물의 출현종과 개체 수는 고리원자력발전소보다 신고리원자력발전소의 배출해역에서 더 많았으며, 그 수는 이전의 다른 연구결과들과 유사한 수준이었다. 두 원자력발전소의 온배수 배출해역은 퇴적물 특성과 대형 저서동물의 출현종 수에서 유의한 차이를 보였다.

Abstract ▼ AI-Helper

This study investigated and compared sediment properties and macrobenthic community structures within heated effluent plumes at the discharge areas of Kori Nuclear Power Plant (KNPP) and Sinkori Nuclear Power Plant (SNPP) in Korea, which have different thermal effluent discharge systems. There were significant differences in sand, clay and organic carbon contents between sediments at the two discharge areas. Species richness and abundance of macrobenthos were higher at the SNPP discharge area than at that of the KNPP, although the values at both areas were comparable to previous studies in coastal areas of eastern Korea.

주제어

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문제 정의

In this study, we compared sediment properties and macrobenthic community structures at the thermal effluent discharge areas of KNPP and SNPP. This study will provide baseline data that will improve not only our understanding of the ecological effects of thermal effluent, but also our ability to take effective conservation measures in the impacted areas.

제안 방법

BPI and AMBI values were calculated to evaluate the health status of the benthic habitat at the two thermal effluent discharge areas of KNPP and SNPP based on the macrobenthic community structures (Table 3). BPI values ranged from 47 to 92 with a mean of 66 ± 13 at KNPP and from 18 to 76 with a mean of 61 ± 11 at SNPP.
Macrobenthic community structure at each discharge area was examined by delicately separating each fixed sediment sample into aquatic organisms and sediment particles under a magnifying lens or stereomicroscope (SZ51, Olympus, Japan). The organisms were identified to the lowest possible taxonomic level.
This study investigated and compared the sediment properties and macrobenthic community structures at the thermal effluent discharge areas of two nuclear power plants with differing discharge systems. Sediments of the discharge areas of KNPP and SNPP were both composed primarily of sand, followed by clay, silt and gravel.

대상 데이터

) to oxidize organic matters. Pretreated samples were sieved using 0.062-mm metal mesh (phi scale, ϕ =4). Sandy particles retained on the sieve were separated according to the phi scale using a Roe-tap sieve shaker for 15 min (Ingram[1971]), and the resulting filtrate was analyzed using the pipette method of McBride[1971].
1). Sediment samples were collected from each of 21 stations in soft bottoms at the two discharge areas between June 11-13, 2013 (Fig. 1), after considering the tide which had considerable effects on thermal plumes. Roughly 30 g of surface sediment was collected with a van Veen grab sampler (surface area: 0.

이론/모형

062-mm metal mesh (phi scale, ϕ =4). Sandy particles retained on the sieve were separated according to the phi scale using a Roe-tap sieve shaker for 15 min (Ingram[1971]), and the resulting filtrate was analyzed using the pipette method of McBride[1971]. Sediment texture and type were classified according to Folk[1968] and Folk and Ward[1957], respectively.

성능/효과

9% of samples, respectively). At KNPP, the second most abundant taxon was Arthropoda (12.1%), followed by Echinodermata (9.8%) and Mollusca (5.8%), whereas Echinodermata was the second most abundant at SNPP (10.9%), followed by Arthropoda (7.3%) and Mollusca (6.4%). Composition ratios by biomass were distorted by the occurrences of large-bodied invertebrates, which included the cnidarian Cerianthus filiformis at the KNPP discharge area and the molluscan Siphonalia fusoides at SNPP.
From the results of cluster analysis and nMDS ordination, the KNPP and SNPP discharge areas were divided into four groups with similar species compositions at 18% similarity level. Group A was composed of only one station (St.
Finally, Group D included all the other stations of both KNPP and SNPP discharge areas and were characterized by small sediment particle sizes and high species richness and abundance. Overall, our results showed that there were no prominent differences between the two discharge areas of KNPP and SNPP in terms of macrobenthic fauna besides several stations close to discharge outfalls.

참고문헌 (28)

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