[논문]국내 4대강 수계 하천의 보 밀도에 따른 어류 출현종 분석

문운기; 노다혜; 유재상; 임오영; 김명철; 김지혜; 이정민; 김재구

doi:10.17820/eri.2022.9.2.093

[국내논문] 국내 4대강 수계 하천의 보 밀도에 따른 어류 출현종 분석
Appearance of Fish Species Based on the Weir's Density in the Four River Systems in Korea 원문보기

Ecology and resilient infrastructure, v.9 no.2, 2022년, pp.93 - 99

문운기 ((주)엔솔파트너스) , 노다혜 ((주)엔솔파트너스) , 유재상 ((주)엔솔파트너스) , 임오영 ((주)엔솔파트너스) , 김명철 ((주)SOKN생태보전연구소) , 김지혜 (영산강유역환경청 유역계획과) , 이정민 (영산강유역환경청 유역계획과) , 김재구 ((주)엔솔파트너스 기업부설연구소)

초록
AI-Helper

4대강 수계 하천에 설치된 보 밀도는 어류의 종 다양성에 영향을 주는 요인임을 확인하였다. 보 밀도 지수는 수계별로 차이를 보였으며, 낙동강 수계하천이 가장 높게 나타났으며 (17±1.6), 금강 (1.5±1.3)과 영산강(1.4±1.1)은 비슷하게 나타났다. 반면, 한강 수계하천(1.3±1.2)에서는 보 밀도가 낮게 나타났다. 2-DKS 분석 결과 영산강 수계를 제외하고 D_max에 따른 p-value는 0.05 이하로서 어류의 출현종수는 보 밀도에 의존하는 것으로 나타났다. 어류 종 다양성에 영향을 주는 보 밀도 역치값 (Threshold value)은 수계별로 다르게 나타났으며. 한강수계 1.6개/km, 낙동강 수계 1.3개/km, 금강수계 2.3개/km 이상에서 어류 출현종수는 감소하는 것으로 나타났다. 본 연구에서 조사한 총 1,217개 하천 가운데 33%인 약 404개 하천의 보 밀도 지수가 역치값 이상인 것으로 나타났다. 이러한 하천은 수생태계 연속성 확보가 시급하기 때문에 우선 대상 하천으로 선정하여 역치값 이하로 보 밀도를 관리할 필요가 있다.

Abstract ▼ AI-Helper

It was confirmed that the fish diversity decreased with increasing index of weir's density (IWD) in the four river systems. The IWD showed difference with watershed, it was high in the Nakdong River (NDR). Both two river systems of Gum River (GUR) and Yeongsan River (YSR) were similar, whereas relatively lower density observed in the Han River (HNR) system. A result of 2-Dimensional Kolmogorov-Smirnov (2-DKS) as a nonparametic test showed different threshold values affecting fish diversity with the river systems. The p-values based on Dmax, were significantly different at 0.05 level (except for YSR). The threshold values affecting fish diversity were also different with watershed. The values were 1.6/km of the HNR, 1.3/km of the NDR, and 2.3/km of the GUR, respectively. The fish diversity was decreased when IWD is over threshold values. The IWD of total 404 rivers (about 33%) among 1,217 surveyed in this study showed above threshold value. These rivers should be considered first for evaluating river continuity. The IWD and threshold value suggested in this study would be useful for selecting a stream priority for river connectivity study.

주제어

표/그림 (6)

표 Table 1. Number of rivers investigated in each river basin
표 Table 2. The number of rivers and river basins investigated. The distribution of weir was counted by National Fishway Information System (NFIS) website
표 Table 3. Average index of weir’s density (IWD) and proportion of paddy and dry fields in the watershed of the the four major rivers, Korea
그림 Fig. 1. Analysis of distribution pattern between index of weir's density (IWD) and number of species appeared in Han River (a), Nakdong River (b), Gum River (c) and Yeongsan River (d). Squares closed of each graph indicated threshold value where the maximum difference between actual data and independently-distributed data set occurs, careated by 2-Dimensional Kolmogorov-Smirnov (2DKS) analysis.
표 Table 4. D_max and p-value based on 2-Dimensional Kolmogorov-Smirnov (2DKS) test
표 Table 5. Number of rivers showing above threshold level for each river system

참고문헌 (17)

Ahn, H.K., Woo, H.S., Rhee, K.S., and Kim, K.H. 2008. Stream Eco-corridor restoration by out-aged small dam removal-Focused on Gokreung River Gokreung 2 small dam removal-. Journal of the korea society of environmental restoration technology 11(2): 40-54 (in Korean)
American Rivers, Friends of Earth and Trout Unlimited. 1999. Dam removal success stories.
American Society of Civil Engineers. 1997. Guidelines for retirement of dams and hydroelectric facilities. ASCE, New York.
Bushaw-Newton, K.L., Ashley, J.T., Boettner, A.R., DeAlteris, J., Kiry, P., Kreeger, D.A., Raksany, D., and Velinsky, D.J. 2001. The Manatawny Creek Dam removal: Bio-geochemical processes and sediment contaminants. Bulletin of the North American Benthological Society 18: 172
Cowx, I.G. and Welcomme, R.L. 1998. Rehabilitation of Rivers for Fish. Fishing News Books. Oxford, UK.
Garvey, J.E., Marschall, E.A., and Wright, R.A. 1998. From star charts to stoneflies: Detecting relationships in continuous bivariate date. Ecology 79(2): 442-447.
Giller, P.S. and Malmqvist, B. 1998. The biology of stream and rivers. Oxford university press. Oxford, UK. pp. 296
Hart, D.D., Johnson, T.E., Bushaw-Newton, K.L., Horwitz, R.J., Bednarek, A.T., Charles, D.F., Kreeger, D.A., and Velinsky, D.J. 2001. Dam removal: challenges and opportunities for ecological research and river restorantion." Bio Science 52: 669-681.
Horwitz, R.J., Overbeck, P., Perillo J., and Bushaw-Newton, K.L. 2001. Effects on fish populations of removal of a dam on Manatawny Creek (Schuylkill River drainage, Pottstown, Pennsylvania). Paper presented at the Annual Meeting of the American Fisheries Society 19-23, August 2001 Phoenix, AZ.
Johnson, T.E., Pizzuto, J., Egan, J., Bushaw-Newton, K.L., Hart, D., Lawrence, J., and Lynch, E. 2001. The Manatawny Creek Dam removal: Project overview and geomorphic characteristics. Bulletin of the North American Benthological Society 18:121-122.
Korea Institute of Civil Engineering and Building Technology (KICT). 2007. The Stream Eco-corridor Restoration and Water Quality Improvement by Weir Removal with Its Function Lost, Ministry of Environment (in Korean).
Korea Institute of Civil Engineering and Building Technology (KICT). 2020. Investigation of Disposed Weirs Managed by Local Government (in Korean).
Maitland, P.S. and Morgan, N.C. 1997. Conservation Management of Freshwater Habitats. Chapman & Hall, London.
National Institute of Environmental Research (NIER). 2020. Guideline for Ecological Connectivity and Evaluation Method in Aquatic Ecosystem. Ministry of Environment (in Korean).
Shuman, J.R. 1995. Environmental considerations for assessing dam removal alternatives for river restoration. Regulated rivers: Research and management. 11: 249-261.

상세보기
Smith, L.W., Dittmer, E., Prevost M. and Burt D.R. 2000. Breaching of a small irrigation dam in Oregon: A case history. North Amercan Journal of Fisheries Mangement 20: 205-219.
The Heinz Center. 2002. Dam removal: Science and decision making. The Heinz Center, Washington, D.C.

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