Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
권호 표지

Characteristics of Fish Community on Six Lakes Located in Gyeonggi

경기 6개호수의 어류군집 특성

  • Kim, Jai-Ku (Department of Environmental Science, Kangwon National University) ;
  • Jang, Young-Su (Department of Biology, Kangwon National University) ;
  • Lee, Kwang-Yeol (Department of Biology, Kangwon National University) ;
  • Ryu, Hyeung-Rial (Gyeonggi-do Institute of Health and Environment) ;
  • Jeong, Ju-Yong (Gyeonggi-do Institute of Health and Environment) ;
  • Kim, Bom-Chul (Department of Environmental Science, Kangwon National University) ;
  • Choi, Jae-Seok (Department of Biology, Kangwon National University)
  • Published : 2006.06.30
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Abstract

Community structures of fish in six small eutrophied lakes, located in Gyeonggi province, Korea were investigated from September 2003 to August 2004. Total number of fish species was 33 species of 13 families in which five Korean endemic species such as Rhodeus uyekii, Squalidus gracilis majimae, Abbottina springeri, Iksookimia koreensis, and Odontobutis interrupta were found. Dominant species in the lakes was Hemiculter leucisculus. Both Zacco platypus and Pseudorasbora parva were numberous as subdominant species. In particlilar, Micropercops swinhonis known as partly distributed in the Jeonlabukdo was first recorded in Lake Wangsong and Heungbu which are located in the Gyeonggi province. In lake Myukwoo, Wangsong, and Heungbu, the proportion of Pelagic and omnivorous fish were high, reflecting that fish habitat is poor. A CPUE based fish production was the lowest in Lake Geumgwang of which lake is relatively favorable, whereas it was higher in eutriphied lakes suchs as Dukwoo, Myukwoo and Heungbu lakes.

경기도에 위치한 6개 소형 부영양호를 대상으로 2003년 9월부터 2004년 8월까지 어류의 군집구조를 조사하였다. 총 채집된 종은 13과 33종이었으며, 각시붕어 (Rhodeus uyekii), 긴몰개 (Squalidus gracilis majimae), 왜매치 (Abbottina springeri), 참종개 (Iksookimia koreensis), 얼룩동사리 (Odontobutis interrupta) 등 5종의 한국고유종이 발견되었다. 우점종은 살치 (Hemiculter Ieucisculus)였으며, 그 외 피라미 (Zacco platypus), 참붕어 (Pseudorasbora parva)가 아우점종으로서 풍부하게 나타났다. 특히 전라북도의 일부지역에서 분포하는 것으로 알려진 좀구굴치 (Micropercops swinhonis)가 경기지역에 위치한 창송과 흥부지에서 처음으로 기록 된 것은 주목할 만하다. 멱우, 왕송, 흥부지의 경우 부유성어종의 비율과 잡식성어종의 비율이 높게 나타나 호수의 어류서식환경이 양호하지 못함을 반영하고 있다. CUPE를 바탕으로 한 어류의 생산성은 호수 수질이 양호한 금광지에서 가장 낮았으며, 반면 다소 부영양한 호수인 덕우지, 멱우지, 그리고 흥부지는 어류생산성 이 높았다.

Keywords

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