Ecology and Resilient Infrastructure

Korean Society of Ecology and Infrastructure Engineering (응용생태공학회)
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Calculation (Computation) of Habitat Suitability Index for Swimming Fish Species Living in Miho Stream in Geum River Water System

금강수계 미호천에 서식하고 있는 유영성 어종의 서식지적합도지수 산정

  • Received : 2020.09.21
  • Accepted : 2020.12.23
  • Published : 2021.03.31
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Abstract

In this study, fish and flow surveys were conducted at 12 survey points to calculate the fish habitat suitability index of Miho Stream in the Geum River Water System. The field surveys were conducted four times from September 2019 to May 2020. The results show the presence of 8 families, 37 species, and 5,754 individuals. The number of water purification species that preferred waters with a low flow rate was the highest. The habitat suitability index was calculated according to the Washington Department of Fish and Wildlife method based on the populations collected at various water depths and flow rate sections and the flow rate survey results. For the dominant species, Zacco platypus and swimming species, the results were compared by calculating at Gasan Bridge and Palgye Bridge at the upper stream. The single species showed no significant difference between the upstream and downstream at water depths of 0.1 - 0.5 m and flow rates of 0.2 - 0.5 m/s. The species swimming ability was similarly calculated at water depths of 0.2 - 0.5 m and flow rates of 0.2 - 0.5 m/s. The dominant species, Pyramid, had a wide range of physical habitats. The habitat suitability index between the swimming species was similarly calculated. These results can be effectively used as basic data for calculating the environmental ecological flow rate and establishing a river restoration plan of the Miho Stream.

본 연구에서는 금강수계 미호천의 어류 서식지적합도지수 산정을 위해 12개 조사지점에서 어류 및 유량조사를 실시하였고, 미호천을 대표할 수 있는 2개 지점을 선정하여 어종별 수심 및 유속 등 물리적서식지 정보를 구축하여 서식지적합도지수를 산정하였다. 2019년 9월부터 2020년 5월까지 총 4회 실시한 현장조사 결과에 따르면 총 8과 37종 5,754개체가 출현하였고, 어류군집의 유영특성은 정수성 어종이 22종, 중간종 7종, 유수성종 8종으로 유속이 느린 수역을 선호하는 정수성종의 출현 종수가 가장 많은 것으로 확인되었다. 서식지적합도지수는 수심과 유속 구간별 채집된 개체수와 유량조사 결과를 이용하여 WDFW 방법에 따라 산정하였다. 우점종인 피라미와 유영성 어종을 대상으로 상류의 가산교 지점과 중류의 팔결교 지점에서 각각 산정하여 결과를 비교하였다. 단일종은 수심 0.1 - 0.5 m, 유속 0.2 - 0.5 m/s의 범위에서 상류와 하류간 큰 차이를 보이지 않았고, 유영성종의 경우 수심 0.2 - 0.5 m, 유속 0.2 - 0.5 m/s의 범위로 단일종과 유사하게 산정되었다. 우점종인 피라미의 물리적 서식범위가 광범위하였고, 유영성종 간의 서식지적합도지수는 유사하게 산정된 결과를 보였다. 이와 같은 결과는 미호천의 환경생태유량 산정 및 하천복원 계획을 위한 기초자료로 활용성이 높을 것으로 판단된다.

Keywords

References

  1. Hur, J.W. and Kim, J.K. 2009. Assessment of riverine health condition and estimation of optimal ecological flowrate considering fish habitat in downstream of Yongdam dam. Korea Water Resources Association 42(6): 481-491. https://doi.org/10.3741/JKWRA.2009.42.6.481
  2. Hur, J.W., Kang, H.S., Jang, M.H., and Lee, J.Y. 2013. Fish community and estimation of optimal ecological flowrate in up and downstream of Hoengseong dam. Journal of Environmental Science International 22(8): 925-935. https://doi.org/10.5322/JESI.2013.22.8.925
  3. Hur, J.W., Kim, D.H., and Kang, H.S. 2014. Estimation of optimal ecological flowrate of fish in Chogang stream. Ecology and Resilient Infrastructure 1(1): 39-48. https://doi.org/10.17820/eri.2014.1.1.039
  4. IFASG (Instream Flow and Aquatic Systems Group). 1986. Development and evaluation of habitat suitability criteria for use in the instream flow incremental methodology: biologic report. Instream Flow Information Paper No. 21. National Ecology Center.
  5. Jeon, S.L. 1980. Distribution about Korean fresh water fish. University of Chung-ang, pp. 30-72.
  6. Kang, H.S. 2010. Development of physical fish habitat suitability index. Korea Environment Institute.
  7. Kang, H.S. and Hur, J.W. 2012. Aquatic ecosystem assessment and habitat improvement alternative in Hongcheon river using fish community. KSCE Journal of Civil Engineering 35(5B): 331-343.
  8. Kang, H.S., Im, D.K., Hur, J.W., and Kim, K.H. 2011. Instream of habitat suitability index of fish species in the Geum river watershed. Journal of the Korean Society of Civil Engineers 31(2B): 193-203. https://doi.org/10.12652/KSCE.2011.31.2B.193
  9. Kim, I.S. and Park, J.Y. 2002. Freshwater fishes of Korea. Kyohak Publishing Co., Ltd.
  10. Kim, K.H. 1999. Evaluation of habitat condition and estimation of optimum flow for the freshwater fish. The Graduate School Yonsei University in Korea.
  11. Lee, J.H., Jeong, S.M., Lee, M.H., and Lee, Y.S. 2006. Estimation of instream flow for fish habitat using instream flow incremental methodology (IFIM) for major tributaries in Han river basin. Journal of the Korean Society of Civil Engineers B 26(2B): 153-160.
  12. Ministry of Land. 2010. River ecological flow security technology. Ecoriver21 Enterprise Organization Technical report.
  13. Nelson, J.S. 1994. Fishes of the world. John Wiley and Sons, New York. pp. 1-600.
  14. Stalnaker, C.B., Lamb, B.L., Henriksen, J., Bovee, K., and Bartholow, J. 1995. The instream flow incremental methodology: a primer for IFIM. Biological Report 29, US Department of the Interior. p. 45.
  15. Sung, Y.D., Park, B.J., Joo, G.J., and Jung, L.S. 2005. The estimation of ecological flow recommendations for fish habitat. Journal of Korea Water Resources Association 38(7): 545-554. https://doi.org/10.3741/JKWRA.2005.38.7.545
  16. WDFW (Washington Department of Fish and Wildlife). 2004. Instream flowstudy guidelines: technical and habitat suitability issues including fish preference curves. p. 65.