Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Population Characteristics of Ichthyofauna and Bluegill, Lepomis macrochirus in 4 Water Dams(Daegok Dam, Sayeon Dam, Daeam Dam, Seonam Dam) in Ulsan Area

울산권 4개 용수댐(대곡댐, 사연댐, 대암댐, 선암댐)의 어류상과 블루길(Lepomis macrochirus)의 개체군 특성

  • Received : 2020.08.07
  • Accepted : 2020.09.28
  • Published : 2020.10.31
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Abstract

This study aims to examine the population characteristics of the fish and the bluegill (Lepomis macrochirus), designated as ecologically disturbing fish, living in four water dams in the Ulsan area and to provide basic data. The survey of fish living in 4 water dams and surrounding tributaries in the Ulsan area from 2016 to 2017 found a total of 1,987 individuals of 28 species of 9 families and identified 6 Korea's endemic species is (21.4% indigenous rate), 4 exotic species, and 2 ecosystem disturbing species. Based on the number of fishes identified, the dominant species was Lepomis macrochirus, and the subdominant species was Hemiculter eigenmanni. The investigation of the age structure of the L. macrochirus found in the 4 water dams in the Ulsan area showed a large population of 1 to 2 old, and the population was growing fast. Moreover, the analysis of the total length-weight relationship and obesity of the L. macrochirus population showed that the regression coefficient b of the total length-weight relationship was greater than 3.0, and the habitat of the L. macrochirus population was in good condition. Obesity had a positive slope, and the growth state was relatively good. The result of this study can be used as useful data to predict the trend of the L. macrochirus fauna inhabiting in 4 water dams in the Ulsan area.

본 연구는 울산권 4개 용수댐에서 서식하고 있는 어류상과 생태계교란 생물로 지정된 블루길에 대한 개체군 특성을 파악하고 기초자료를 제공하는데 목적을 가지고 시행되었다. 울산권 4개 용수댐 및 주변지류에 서식하는 어류를 대상으로 2016년부터 2017년까지 연구를 실시한 결과, 총 9과 28종 1937개체가 확인되었으며, 한국고유종은 6종(고유화율 21.4%), 외래종 4종, 생태계교란 생물 2종이 조사되었다. 본 연구에서 확인된 어류의 개체수를 기준으로 우점종 및 아우점종을 확인한 결과, 우점종은 블루길, 아우점종은 치리로 확인되었다. 블루길 개체군의 연령구조를 조사한 결과, 울산권 4개 용수댐은 만 1~2년생의 개체군이 많이 확인되었으며, 개체군이 빠르게 성장하고 있는 단계로 판단된다. 또한, 블루길 개체군의 전장-체중 관계식 및 비만도를 분석한 결과, 울산권 4개 용수댐의 전장-체장 관계식은 회귀계수 b값이 3.0보다 크게 나타났으며, 블루길 개체군이 서식상태가 양호한 것으로 판단된다. 비만도는 기울기 값이 양의 값을 보이며, 성장상태가 비교적 양호한 것으로 나타났다. 본 연구결과는 울산권 4개 용수댐에 서식하는 블루길 개체군의 동향 예측을 파악하는데 유용한 자료로 활용될 것으로 본다.

Keywords

References

  1. Anderson, R.O. and R.M. Neumann(1996) Length, weight and associated structural indices. In B.R. Murphy and D.W. Willis(Eds.), Fisheries Society, Benthesda, Maryland, pp. 447-482.
  2. Byeon, H.K., W.O. Lee and D.S. Kim(2004) The Ichthyofauna and Community of Fish in Lake Yeongcheon. Korea J. Ichthyol. 16(3): 234-240.
  3. Carl, B.S. and B.M. Peter(1990) Methods for fish biology. American Fisheries Society, Maryland, USA, 684pp.
  4. Jeon, S.R.(1980) Studies on the distribution of fresh-water fishes from Korea. Doctoral Thesis, Chungang Univ. 14-49pp.
  5. Jeong, M.G.(1977) The Fishes of Korea. Iljiksa.
  6. Kawanabe, H. and N. Mizuno(1989) Freshwater fishes of Japan. Yama-Kei Pub. Co., Japan, 719pp.
  7. Kim, I.S. and J.Y. Park(2002) Korean freshwater fish. Academic Books.
  8. Kim, I.S.(1997) Korean Animals and Plants Illustrations(Vol. 37 vol Animals(Freshwater fish)). The Ministry of Education.
  9. Kim, I.S., Y. Choi, C.R. Lee, Y.J. Lee, B.J. Kim and J.H. Kim(2005). Primary color Korean fish Picture book. Kohak Company.
  10. Korea National Park Research Institute(2014) Research on specific Exotic species management plan-Bluegill, Bass-. Korea National Park Service.
  11. Korea Water Resources Corporation(2017). Survey on the ecological environment of 4 water Dam in Ulsan area reservoir and surrounding area. Korea Water Resources Corporation.
  12. LeCern, E.D.(1951) The length-weight relationship and seasonal cycle in gonad weight and condition in the perch(Perca fluciatilis). The Journal of Animal Ecology. 20: 201-219. https://doi.org/10.2307/1540
  13. Lee, C.L. and Y.H. Kim(2002) Ichthyofauna and Structure of the Fish Community in Jinyang Lake on the Nam River. Korean J. Ichthyol. 14(3): 173-182.
  14. Margalef, R.(1958). Information theory in ecology. Gen. Syst. 3: 36-71.
  15. McNaughton, S.J.(1967). Relationship among functional properties of California Glassland. Nature. 216: 144-168. https://doi.org/10.1038/216168b0
  16. Nelson, J.S.(2006) Fishes of the world(3rd ed.). John Wiely & Sons. New York.
  17. Pielou, E.C.(1966) The measurement of diversity in different type of biological collections. J. Theoret. Biol. 13:131-144. https://doi.org/10.1016/0022-5193(66)90013-0
  18. Seo, J.W.(2005) Fish Fauna and Ecological Characteristics of Dark Chub(Zacco temminchkii) Population in the Mid-Upper Region of Gam Stream. The Korean Journal of Limnology 38(2): 196-206.
  19. Shannon, C.E. and W. Weaver(1963) The Mathematical Theory of Communication. University of Illinois Press, Urbana, 177pp.
  20. Son, Y.M. and H.B. Song(2006) Geumgang(River) Freshwater fish. Jisung Company.
  21. Song, H.B.(2002) Bluegill, Lepomis macrochirus of Reproductive and vegatation. The Korea Journal of Ichthyology. 128pp.
  22. Song, H.B., M.S. Byeon, D.W. Kang, C.R. Jang, J.S. Moon and H.K. Park(2012) Population Structure of Bluegill, Lepomis macrochirus in Lakes of the Han River System, Korea. Korea J. of Ichthyology 24(4): 278-286.
  23. Yang, H.J. and B.S. Chae(1997a) Ecological Study on the Bluegill, Lepomis macrochirus Rafinesque, in the Andong Dam Reservoir. Korean Journal of Limnology 30(2): 135-143.
  24. Yang, H.J. and B.S. Chae(1997b) The Ichthyofauna and Structure of Fish Community around the Namgang Dam Reservoir. Korean Journal of Environmental Biology 15(2): 175-183.
  25. Yang, H.J.(1999) Problems and countermeasures due to introduction of exotic species. Korean Journal of Nature Conservation 160: 15-21.