Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Distribution Status, Habitat Characteristics and Extinction Threat Evaluation of the Endangered Species, Brachymystax lenok tsinlingensis (Pisces: Salmonidae)

멸종위기어류 열목어 Brachymystax lenok tsinlingensis (Pisces: Salmonidae)의 분포현황과 서식지 특징, 멸종위협 평가

  • Received : 2021.02.24
  • Accepted : 2021.04.05
  • Published : 2021.06.30
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Abstract

Distribution status, habitat characteristics, and extinction threat evaluation of the endangered species, Brachymystax lenok tsinlingensis were investigated in 2015 and 2019. Historical distribution reports of B. l. tsinlingensis were divided into before 1990, 1997~2006, 2000~2011, and 2010~2019. Among the 150 sampling sites investigated during the study period, number of individuals of B. l. tsinlingensis were collected 542 individuals from 67 sites. The streams inhabited of B. l. tsinlingensis were Naerincheon (11 stations), Odaecheon (11 stations), Bukcheon (10 stations), Bangtaecheon (8 stations), Songjeongricheon (4 stations), Suipcheon (3 stations), Inbukcheon (3 stations), Hyeondongcheon (3 stations) etc. The main habitat of B. l. tsinlingensis was upstream of the river with a high altitude of more than 400 m, 4~20 m water flow width, 1~2 m water depth, and high ratio (70~80%) boulder bottoms. The main reasons for the decline in population size were assumed as river works, construction of reservoirs and bridges, discharge of contaminated water into the river, the inflow of summer vacationers, and weir. Compared to our results there exists evidence that states a 20.7% reduction in occupancy within 10 years, in a small appearance range (7,732 km2) and occupancy area (268 km2), number of disconnected locations (15 locations), and a decline in habitat quality. Therefore, B. l. tsinlingensis is now considered as Near Threatened (NT) based on the results (Near meets VU A2acd, B1b(i,ii,iii)+B2b(i,ii,iii)) of IUCN Red List categories and criteria.

우리나라의 멸종위기어류 열목어 Brachymystax lenok tsinlingensis의 분포양상 및 서식지 특징, 멸종위협 등급을 평가하기 위해 분포조사를 2015년과 2019년에 실시하였다. 출현기록은 1990년 이전, 1997~2006년, 2000~2011년, 2010~2019년으로 나누어 정리하였다. 분포조사는 모두 150개 지점을 조사하여 67개 지점에서 542개체를 확인하였는데, 내린천 (11개 지점), 오대천(11개), 북천(10개), 방태천(8개), 송정리천(4개), 수입천(3개), 인북천(3개), 현동천(3개) 등의 순으로 지점수와 개체수가 많았다. 열목어의 주 서식지는 고도가 400 m 이상으로 높은 하천 상류로 유폭 4~20 m, 수심 1~2 m이며 큰돌의 비율이 70~80%로 높은 곳이었다. 감소 및 위협요인은 하천정비공사, 저수지 및 교량 건설, 오염수 배출, 여름철 피서객 유입, 보 등이었다. 멸종위협 등급을 IUCN 평가기준(A, B)에 따라 평가했을 때, 2000~2011년 대비 서식지 감소율(20.7%), 출현범위 (7,732 km2), 점유면적 (268 km2), 단절된 지소수 (15개), 서식지 질 하락 등을 근거로 근접한 취약(Near meets VU A2acd, B1b (i,ii,iii)+B2b (i,ii,iii))으로 나타나 최종 "준위협종(Near Threatened, NT)"으로 평가되었다.

Keywords

Acknowledgement

본 연구는 환경부 국립생물자원관의 멸종위기 야생생물 전국 분포조사 일환으로 조사되었으며, 본 조사가 진행될 수 있도록 도와주신 국립생물자원관의 권선만 박사님과 오현경 박사님께 감사드립니다.

References

  1. Byeon, H.K. 2011. The characteristic of fish fauna and Brachimystax lenok tsinlingensis individuals in the Bonghwa-gun, Korea. Kor. J. Env. Eco., 25: 878-886.
  2. Byeon, H.K., K.S. Jo, J.S. Choi, J.H. Park, J.K. Choi, Y.M. Son and S.R. Jeon. 1995. Diet of manchurian trout (Brachymystax lenok tsinlingensis) at Jindong Stream. Korean J. Limnol., 28: 279-287. https://doi.org/10.11614/KSL.2015.48.2.139.
  3. CHA(Cultural Heritage Administration). 2004. Rport of survey and management of natural monument species, Brachymystax lenok tsinlingensis. Cultural Heritage Administration, Daejeon, Korea, 103pp.
  4. Chae, B.S., S.K. Kim, Y.H. Kang, N.S. Heo, J.M. Park, H.U. Ha and U.W. Hwang. 2015. Ichthyofauna and fish community structure in upper reach of the Nakdong River, Korea. Korean J. Ichthyol., 27: 116-132.
  5. Choi, K.C. 1986. The nature of Gangwon, freshwater fishes. Gangwon Provincial Office of Education, Chuncheon, Korea, 389pp.
  6. Choi, K.C. 1990. The nature of Gyeongbuk, freshwater fishes. Gyeongsangbuk-do Provincial Office of Education, Daegu, Korea, 408pp.
  7. Choi, K.C., S.R. Jeon, I.S. Kim and Y.M. Son. 1990. Coloured illustrations of the freshwater fishes of Korea. Hyangmun Publishing Co. Ltd., Seoul, Korea, 277pp.
  8. Cummins, K.W. 1962. An evolution of some techniques for the collection and analysis of benthic samples with special emphasis on lotic waters. Amer. Midl. Nat'l., 67: 477-504. https://doi.org/10.2307/2422722
  9. IUCN. 2001. IUCN red list categories and criteria: Version 3.1. IUCN Species Survival Comission. IUCN, ii + 30pp.
  10. IUCN. 2019. IUCN Red List of threatened species. version (12/2020). Retrieved from http://www.iucn.org/resources/conservation-tools.
  11. Jang, J.E., J.H. Kim, J.H. Kang, S.Y. Baek, J. Wang, J.G. Lee, J.K. Choi and H.J. Lee. 2017. Genetic diversity and genetic structure of the endangered Manchurian trout, Brachymystax lenok tsinlingensis, at its southern range margin: conservation implications for future restoration. Conserv. Genet., 18: 1023-1036. https://doi.org/10.1007/s10592-017-0953-7.
  12. Jang, M.H., G.J. Joo and M.C. Lucas. 2006. Diet of introduced largemouth bass in Korean rivers and potential interactions with native fishes. Ecol. Freshw. Fish, 15: 315-320. https://doi.org/10.1111/j.1600-0633.2006.00161.x.
  13. Kani, T. 1944. Ecology of torrent-inhabiting insects. In: Furukawa, J. (ed.), Insect I. Kenkyu-sha, Tokyo, Japan, pp. 171-317.
  14. Kim, C.H., K.E. Hong, J.H. Kim and K.H. Kim. 2006. Ichthyofauna in Yeongok Stream, Gangneung, Korea. Korean J. Ichthyol., 18: 244-250.
  15. Kim, I.S. 1997. Illustrated encyclopedia of fauna & flora of Korea. Vol. 37. Freshwater fishes. Ministry of Education, Yeongi, Korea, 518pp.
  16. Kim, I.S. and J.Y. Park. 2007. Freshwater fishes of Korea. Kyohak Publishing Co. Ltd., Seoul, Korea, 467pp.
  17. Kim, J.H., J.D. Yoon, H.B. Jo and M.H. Jang. 2015. The study on daily movement patterns of Brachymystax lenok tsinlingensis inhabit in the upper part of the Nkdong River. Korean J. Ecol. Environ., 48: 139-145. https://doi.org/10.11614/KSL.2015.48.2.139
  18. KNPS (Korea National Park Service). 2001. Natural resource survey of Seoraksan National Park. Korea National Park Research Institute, Seoul, Korea, 487pp.
  19. KNPS (Korea National Park Service). 2004. Natural resource survey of Odaesan National Park. Korea National Park Research Institute, Seoul, Korea, 738pp.
  20. KNPS (Korea National Park Service). 2010. Natural resource survey of Seoraksa National Park. Korea National Park Research Institute, Namwon, Korea, 679pp.
  21. KNPS (Korea National Park Service). 2012a. Natural resource survey of Seoraksa (Jeombongsan) National Park. Korea National Park Research Institute, Namwon, Korea, 316pp.
  22. KNPS (Korea National Park Service). 2012b. Natural resource survey of Odaesan (Gyebangsan) National Park. Korea National Park Research Institute, Namwon, Korea, 331pp.
  23. KNPS (Korea National Park Service). 2013. Natural resource survey of Odaesan National Park. Korea National Park Research Institute, Namwon, Korea, 856pp.
  24. KNPS (Korea National Park Service). 2015. Natural resource survey of Chiaksan National Park. Korea National Park Research Institute, Wonju, Korea, 797pp.
  25. KNPS (Korea National Park Service). 2017. Natural resource survey of Taebaesan National Park. Korea National Park Research Institute, Wonju, Korea, 852pp.
  26. Ko, M.H. 2016. Distribution status and threatened assessment of endangered species, Pungitius sinensis(Pisces: Gasterosteidae) in Korea. Korean J. Ichthyol., 28: 186-191.
  27. Ko, M.H., M.S. Han and S.M. Kwan. 2018a. Distribution aspect and extinction threat evaluation of the endangered species, Cottus hangiongensis(Pisces: Cottidae) in Korea. Korean J. Ichthyol., 30: 155-160. https://doi.org/10.35399/ISK.30.3.4
  28. Ko, M.H., M.S. Han and S.M. Kwan. 2018b. Distribution aspect and extinction threat evaluation of the endangered species, Rhodeus pseudosericeus(Pisces: Cyprinidae) in Korea. Korean J. Ichthyol., 30: 100-106. https://doi.org/10.35399/ISK.30.2.5
  29. Ko, M.H., M.S. Han and S.M. Kwan. 2019. Distribution aspects and extinction threat evaluation of the Korean endemic species, Iksookimia pacifica (Pisces: Cobitidae) in Korea. Korean J. Ichthyol., 31: 16-22. https://doi.org/10.35399/ISK.31.1.3.
  30. Ko, M.H., M.S. Han and S.M. Kwan. 2020. Distribution status and extinction threat evaluation of the Korean endemic species, Iksookimia yongdokensis(Pisces: Cobitidae). Korean J. Ichthyol., 31: 16-22. https://doi.org/10.35399/ISK.31.1.3.
  31. Ko, M.H., Y.S. Kwan, W.K. Lee and Y.J. Won. 2017. Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years. Anim. Cells Syst., 21: 207-2016. https://doi.org/10.1080/19768354.2017.1330223.
  32. Ko, M.S. 2020. A study of the fish community and habitat characteristics of the manchurian trout (Brachymystax lenok tsinlingensis) population in Hongcheon. Master Thesis, Sangji University, Wonju, Korea, 101pp.
  33. Kwater. 2007. A guidebook of rivers in South Korea. Kwater, Daejeon, Korea, 582pp.
  34. ME (Ministry of Environment). 1997-2006. The 2nd national environment investigation of freshwater fish. Ministry of Environment, National Institute of Environmental Research, Incheon, Korea.
  35. ME (Ministry of Environment). 1998. Natural environment conservation act(Law No. 5392).
  36. ME (Ministry of Environment). 2005. Enforcement of wildlife laws (Law No. 7167).
  37. ME (Ministry of Environment). 2007-2011. The 3rd national environment investigation of freshwater fish. Ministry of Environment, National Institute of Environmental Research, Incheon, Korea.
  38. ME (Ministry of Environment). 2012. Conservation and management laws of wildlife (Law No. 10977).
  39. ME (Ministry of Environment). 2017. Conservation and management laws of wildlife (amendment of enforcement regulations)(Law No. 10977).
  40. NIBR (National Institute of Biological Resources). 2011. Red data book of endangered fishes in Korea. Ministry of Environment, National Institute of Biological Resources, Incheon, Korea, 202pp.
  41. NIBR (National Institute of Biological Resources). 2019. Red data book of Republic of Korea, Volume 3. Freshwater fishes. Ministry of Environment, National Institute of Biological Resources, Incheon, Korea, 250pp.
  42. NIE (National Institute of Ecology). 2015. Ecological survey of DMZ protected areas(Eastern Coast Area). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 441pp.
  43. NIE (National Institute of Ecology). 2016. Ecological survey of DMZ protected areas (Eastern Mountain Area). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 545pp.
  44. NIE (National Institute of Ecology). 2017a. Ecological survey of Baekdudaegan protected areas (Myojeoggae~Hwabanggae). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 464pp.
  45. NIE (National Institute of Ecology). 2017b. Ecological survey of Baekdudaegan protected areas (Hwabanggae~Thatjae). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 416pp.
  46. NIE (National Institute of Ecology). 2018a. Ecological survey of Baekdudaegan protected areas (Thatjae~Sapdangryeong). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 428pp.
  47. NIE (National Institute of Ecology). 2018b. Ecological survey of Baekdudaegan protected areas (Sapdangryeong~Sinbaeryeong). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 432pp.
  48. NIE (National Institute of Ecology). 2019a. Ecological survey of Baekdudaegan protected areas (Sinbaeryeong~Daeganryeong). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 450pp.
  49. NIE (National Institute of Ecology). 2019b. Ecological survey of Baekdudaegan protected areas(Daeganryeong~Samjaeryeong). Ministry of Environment, National Institute of Ecology, Seocheon, Korea, 455pp.
  50. NIER (National Institute of Environmental Research). 2008. Ecological survey of DMZ protected areas (Samcheok Thatjae~Songnisan Hyeongjebong). Ministry of Environment, National Institute of Environmental Research, Incheon, Korea, 503pp.
  51. NIER (National Institute of Environmental Research). 2009. Ecological survey of DMZ protected areas (Odaesan Jingogae~Samcheok Thatjae). Ministry of Environment, National Institute of Environmental Research, Incheon, Korea, 371pp.
  52. NIER (National Institute of Environmental Research). 2010. Ecological survey of DMZ protected areas (Goseong Hyangrobong~Odaesan Jingogae). Ministry of Environment, National Institute of Environmental Research, Incheon, Korea, 445pp.
  53. NIER (National Institute of Environmental Research). 2012. Ecosystem survey of DMZ area. Institute of Environmental Research, Incheon, Korea, 283pp.
  54. NPRI(National Park Research Institute). 2013. Habitat environment and genetic diversity between the groups of Brachymystax lenok tsinlingensis in Odaesan National Park. National Park Research Institute, Wonju, Korea, 101pp.
  55. Sala, O.E., F.S. Chapin, J.J. Armesto, E. Berlow, J. Bioomfield, R. Dirzo, H.S. Elisabeth, L.F. Huenneke, R.B. Jackson, A. Kinzig, R. Leemans, M.L. David, H. Mooney, A.O. Martin, N.L. Poff, T.S. Martin, B.H. Walker, W. Marilyn and D.H. Wall, 2000. Global biodiversity scenarios for the year 2100. Science, 287: 1770-1774. https://doi.org/10.1126/science.287.5459.1770.
  56. WPOE (Wonju Provincial Office of Environment). 2017. Culture and restoration research of endangered wildlife (Brachymystax lenok tsinlingensis). Wonju Provincial Office of Environment, Wonju, Korea, 45pp.
  57. Yoon, H.N., K.D. Kim, Y.L. Jeon, J.H. Lee and Y.J. Park. 2013. Stomach contents of the manchurian trout (Brachymystax lenok tsinlingensis) and river salmon (Oncorhynchus masou masou) in the Odae Mountain, Gangwondo. Korean J. Ichthyol., 25: 90-105.
  58. Yoon, J.D. and M.H. Jang. 2009. Migration patterns of Brachymystax lenok tsinlingensis using Radio tags in the upper part of the Nakdong River. Korean J. Limnol., 42: 58-66.
  59. Yoon, J.D., J.H. Kim, H.B. Jo, M.A. Yeom, W.M. Heo, G.J. Joo and M.H. Jang. 2014. Seasonal habitat utilization and movement patterns of the threatened Brachymystax lenok tsinlingensis in a Korean river. Envron. Biol. Fishes, 98: 225-236.
  60. Yoon, Y.Y. and H.S. Kim. 2004. Effect of typhoon "Rusa" on the natural Yeon-gok stream and coastal ecosystem in the Yeong-dong province. J. Korean Soc. Mar. Envion. Energy, 7: 35-41.
  61. Yu, J.N. and M. Kwak. 2015. The complete mitochondrial genome of Brachymystax lenok tsinlingensis (Salmoninae, Salmonidae) and its intraspecific variation. Gene, 573: 246-253. https://doi.org/10.1016/j.gene.2015.07.049.