생태와환경 (Korean Journal of Ecology and Environment)

  • 제55권2호
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  • Pages.167-174
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  • 2022
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  • 2288-1115(pISSN)
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  • 2288-1123(eISSN)
한국수생태학회 (The Korean Society of Limnology)
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금강하굿둑, 영암방조제, 아산만방조제 뱀장어 전용어도 모니터링

The Monitoring of Eel-ladder in Geumgang Estuary Bank, Yeongam Embankment and Asanman Embankment

  • 투고 : 2022.05.20
  • 심사 : 2022.06.07
  • 발행 : 2022.06.30
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초록

해양수산부에서는 내수면 자원조성을 목적으로 뱀장어 전용어도 설치사업을 추진하였으며, 현재 금강하굿둑('18년), 영암방조제('19년), 아산만방조제('20년)에 뱀장어 전용어도가 설치되어 운영중에 있다. 본 연구에서는 2021년 뱀장어 전용어도의 실뱀장어 소상 개체수를 모니터링하고 소상에 영향을 주는 요인들을 조사하였다. 뱀장어 전용어도의 실뱀장어 소상은 염분이 비교적 낮을 때 많았으며, 담수와 해수 수온이 20℃ 이상일 때 시작되었으며, 조석(소조기, 대조기, 기타시기)에 따른 차이는 없었다. 연도별 출현 개체수를 비교하였을 때 2021년에 가장 많은 소상 개체수가 관찰되었으나, 이는 해측 실뱀장어의 분포량에 따른 것이 아닌 조사자의 어도 보수와 불법 조업의 계도에 따른 결과로 판단된다.

The Ministry of Oceans and Fisheries promoted the installation of eel-ladder for the purpose of creating inland water resources. Currently, eel-ladder have been installed and operated at the Geumgang Estuary Bank (2018), Yeongam Embankment (2019), and Asanman Embankment (2020). In this study, the number of glass eels in eel-ladder in 2021 was monitored and factors affecting the rise that from ocean to river of eels were investigated. Glass eels in eel-ladder were found when the salinity was relatively low, and they started when the freshwater and seawater temperatures were above 20℃. Comparing the number of occurrences by year, the largest number of glass eels was observed in 2021, but it is judged that this is not according to the distribution of glass eels in sea, but rather as a result of the investigator's eel-ladder repair and guidance on illegal fishing.

키워드

과제정보

본 조사는 한국농어촌공사 2021년 뱀장어 전용어도 생물상 모니터링 연구사업에 의해 수행되었습니다.

참고문헌

  1. Hong, Y.K., M.Y. Song, S.E. Yi and W.O. Lee. 2015. Change in Morphological and Biological Characteristics by Maturation of Japanese Eel, Anguilla japonica, Collected in Korea Waters. Korean Journal of Ichthyology 27: 263-274.
  2. Hong, Y.K., J.E. Kim, J.H. Lee, M.Y. Song, H.W. Park and W.O. Lee. 2017. Occurrence of exotic eels in natural waters of South Korea. Animal Cells and Systems.
  3. Hwang, S.D., T.W. Lee, H.B. Hwang, I.S. Choi and S.J. Hwang. 2009. Upstream Behavior of Glass Eels (Anguilla japonica) in an Experimental Eel-ladder. Korean Journal of Ichthyology 21: 262-272.
  4. Kim, I.S. and J.Y. Park. 2007. Freshwater fishes of Korea. Kyohak Publishing, Seoul, Korea.
  5. Kim, W.S., S.J. Yoon, H.T. Moon and T.W. Lee. 2002. Effects of water temperature changes on the endogenous and exogenous rhythm of oxygen consumption in the glass eels Anguila japonica. Marine Ecology Progress Series 243: 209-216. https://doi.org/10.3354/meps243209
  6. Kim, W.S., S.J. Yoon., J.W. Kim., J.A. Lee and T.W. Lee. 2006. Metabolic response under different salinity and temperature conditions for glass eel Anguilla japonica. Marine Biology 149: 1209-1215.
  7. Korea Maritime Institute.(2022.04.19)
  8. Korean Statistical Information Service.(2022.04.19)
  9. MacNamara, R. and T.K. McCarthy. 2012. Size-related variation in fecundity of European eel (Anguilla anguilla). ICES Journal of Marine Science 69: 1333-1337. https://doi.org/10.1093/icesjms/fss123
  10. Ministry of Land, Infrastructure and Transport. http://www.molit.go.kr/USR/policy Data/m_34681/dtl.jsp?id=228
  11. Ministry of Oceans and Fisheries. 2003. A study of the early life history and migration of glass eels in order to predict stock size.
  12. Ministry of Oceans and Fisheries. 2020. 2020 Monitoring of Eel-ladder in Korea.
  13. Ministry of Oceans and Fisheries. 2021. 2021 Monitoring of Eel-ladder in Korea.
  14. National Institute of Fisheries Science. 2016. A study on eel resource assessment and management plan.
  15. National Fisheries Research and Development Institute. 2009. Standard Manual of Eel(Anguilla japonica) Aquaculture.
  16. Solomon, D.J. and M.H. Beach. 2004. Fish pass design for eel and elver (Anguilla Anguilla). Environment Agency. 1-105 pp.
  17. Watanabe, S., J. Aoyama and K. Tsukamoto. 2009. A new species of freshwater eel Anguilla luzonensis (Teleostei: Anguillidae) from Luzon Island of the Philippines. Fisheries Science 75: 387-392.