한국환경생태학회지 (Korean Journal of Environment and Ecology)

  • 제33권6호
  • /
  • Pages.677-685
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  • 2019
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  • 1229-3857(pISSN)
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  • 2288-131X(eISSN)
한국환경생태학회 (Korean Society of Environment and Ecology)
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어천 용천수에 서식하는 금강모치 Rhynchocypris kumgangensis (Cyprinidae)의 생태 특성

Ecological Characteristics of Rhynchocypris kumgangensis (Cyprinidae) at the Spring Water in Eocheon Stream, Korea

  • 투고 : 2019.10.04
  • 심사 : 2019.10.25
  • 발행 : 2019.12.31
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초록

어천 용천수에서 금강모치(Rhynchocypris kumgangensis)의 생태적 특징 연구를 위하여 2017년 10월부터 2018년 9월까지 조사를 실시하였다. 수온은 10.2 ~ 14.3℃로 변화폭이 매우 적고 연중 15℃ 이하를 유지하였다. 공서종으로는 금강모치가 70.14%로 가장 풍부하였으며, 그 다음으로 둑중개(16.62%), 연준모치(Phoxinus phoxinus, 10.74%), 버들치(Rhynchocypris oxycephalus, 1.55%), 무지개송어(Oncorhynchus mykiss, 0.56%), 참갈겨니(Zacco koreanus, 0.28%), 참종개(Iksookimia koreensis, 0.14%) 등 7종 이었다. 암수의 성비(female : male)는 1 : 0.91로 큰 차이는 보이지 않았다. 5~6월에 채집된 개체에 있어 전장이 40 mm 미만인 집단은 만1년생, 40~69 mm 집단은 만 2년생, 70~85 mm 집단은 만 3년생, 85 mm 이상은 만 4년생으로 추정되었고, 만 2년생 이상부터 성적 성숙이 이루어지기 시작했다. 산란시기는 5월부터 시작되어 8월 말에 끝났으며 산란 성기는 6월에서 7월로 추정되었다. 산란시기의 수온은 12.3~14.3℃ 이었고 산란 성기의 수온은 13.8~14.3℃ 이었다. 포란수는 평균 1,006개(664~1,666) 이었고 성숙란은 노란색 구형으로 직경이 1.34±0.17 mm 이었다. 전장-체중과의 상관관계식은 BW = 0.00003TL2.77로 상수 a는 0.00003를, 매개변수 b는 2.77이었고, 비만도 지수는 평균 K=1.04(0.65~1.48) 이었으며 기울기(Slope)에서 -0.0012로 음의 값을 나타내었다. 용천수에 서식하는 금강모치는 다른 서식지에 서식하는 금강모치에 비해 산란기간이 길었고, 포란수가 적었으며, 비만도는 낮았다.

We investigated the ecological characteristics of kumgang fat minnow (Rhynchocypris kumgangensis) in the Eocheon stream from October 2017 to September 2018. The water temperature was 10.2- 14.3℃ and remained below 15℃ during the year. The fishes in cohabitation with kumgang fat minnow were Cottus koreanus (16.62%), Phoxinus phoxinus (10.74%), Rhynchocypris oxycephalus (1.55%), Oncorhynchus mykiss (0.56%), Zacco koreanus (0.28%), and Iksookimia koreensis (0.14%%). The ratio of females to males was 1:0.91 and did not vary widely. The frequency analysis of total length indicated that the fishes with less than 40 mm in total length were one year old, those with 40 - 69 mm were two years old, those with 70 - 84 mm were three years old, and those with 85 mm or more were four years old for individuals collected in May through June. The sexually mature fishes were over two years old. The spawning season was from late May to late August, and the water temperature was 12.5~14.5℃ during the period. The prosperous spawning season was from June to July, and the water temperature was 13.6 - 14.5℃ during the spawning period. The average number of eggs in the ovaries was 1,006 (664 - 1,666) per matured female, and the matured eggs were yellowish and spherical with a mean diameter of 1.34±0.17 mm. The length-weight correlation of R. kumgangensis was BW = 0.00003TL2.77 with the constant a as 0.00003, b as 2.77, the average condition factor (K) as 1.04(0.65~1.48), and the slope as -0.0012. The kumgang fat minnows inhabiting in the spring water had a longer spawning period, a fewer number of eggs in ovaries, and the lower condition factor (K) than those inhabiting other areas.

키워드

참고문헌

  1. Anderson, R.O. and R.M. Neumann(1996) Length, weight and associated structural indices. In B.R. Murphy and D.W. Willis, editor. Fisheries Techniques, 2nd edition. American, pp. 447-482.
  2. Anderson, R.O. and S.J. Gutreuter(1983) Length weight and associated structural indices. L.A. Johnson. Fisheries techniques. American Fisheries Society, Betheda, Maryland, pp. 283-300.
  3. Baek, H.M., H.B. Song, H.S. Sim, Y.G. Kim and O.K. Kwon(2002) Habitat segregation and prey selectivity on cohabitation fishes, Phoxinus phxinus and Rhynchocypris kumgangensis. Korean J. Ichthyol. 14: 121-131. (in Korean with English abstract)
  4. Bagenal, T.(1978) Methods for assessment of fish production in fresh waters. Blackwell Scientific, pp. 48-116.
  5. Bye, V.J.(984) The role of environmental factors in the timing of reproductive cycle. Fish reproduction: Strategies and tactics, Academic Press, London, pp. 187-205.
  6. Byeon, H.K.(2016) The first record on the Rhynchocypris kumgangensis from Taehwa river, Korea. Kor. J. Env. Eco. 30: 745-750. (in Korean with English abstract) https://doi.org/10.13047/KJEE.2016.30.4.745
  7. Byeon, H.K.(2019) Ecological characteristics of Phoxinus phoxinus (Cyprinidae) at the spring water in Eocheon stream. Kor. J. Env. Eco. 33: 256-265. (in Korean with English abstract) https://doi.org/10.13047/KJEE.2019.33.3.256
  8. Choi, J.S., K.Y. Lee, Y.S. Jang, J.H. Park and O.K. Kwon(2006) Feeding habit of Rhynchocypris kumgangensis (Cyprinidae) from the Hongcheon river, Korea. Korean J. Environ Biol. 24: 29-37. (in Korean with English abstract)
  9. Choi, K.C., S.S. Choi and Y.P. Hong(1990) On the microdistribution of freshwater fish, Coreoleuciscus splendidus (Gobioninae) from Korea. Korean J. Ichthyol. 2: 63-76. (in Korean with English abstract)
  10. Chyung, M.K.(1977) The fishes of Korea. Iljsa, 727pp. (in Korean)
  11. Cummins, K.W.(1962) An evolution of some techniques for the collection and analysis of benthic samples with special emphasis on lotic waters. The American Midland Naturalist, 67: 477-504. https://doi.org/10.2307/2422722
  12. Ecoutin, J.M., J.J. Albert and S. Trape(2005) Length-weight relationships for fish populations of a relatively undisturbed tropical estuary: The Gambia. Fisheries Research 72: 347-351. https://doi.org/10.1016/j.fishres.2004.10.007
  13. Gunther, A.(1868) Catalog of the fishes in the British Museum. Catalogue of the physostomi, containing the families Heteropygii, Cyprinidae, Gonorhynchidae, Hyodontidae, Osteoglossidae, Clupeidae, Chirocentridae, Alepocephalidae, Notopteridae, Halosauridae, in B. Mus. V. 7: 1-512.
  14. Gwark, J.Y. and J.Y. Park(2007) Structure of oocyte surface in two Korean minnow species, Rhynchocypris kumgangensis and R. oxycephalus (Pisces: Cyprinidae). Korean J. Ichthyol. 19: 16-23. (in Korean with English abstract)
  15. Howes, G.J.(1985) A revised synonymy of the minnow genus Phoxinus Rafinesque, 1820(Teleostei : Cyprinidae) with comments on it,s relationships and distribution. Bull. Br. Mus. (Nat. Hist.) Zool. V. 48: 57-74. https://doi.org/10.5962/p.219626
  16. Jeon, S.R.(1980) Studies on the distribution of fresh-water fishes from Korea. Doctoral thesis of Chungang University, pp. 14-49. (in Korean with English abstract)
  17. Kim, I.S.(1997) Illustrated encyclopedia of fauna & flora of Korean Vol. 37 Freshwater Fishes. Ministry of Education, 629pp. (in Korean)
  18. Kim, I.S., Y. Choi, C.L. Lee, Y.J. Lee, B.J. Kim and J.H, Kim(2005) Illustrated Book of Korean Fishes. Kyo-Hak, 615pp. (in Korean)
  19. Kim, L.T.(1980) A new species of genus phoxinus from D.P.R. of Korea. Science Report (North Korea). pp. 28-29. (in Korean with English abstract)
  20. Kim, S.J., H.S. Noh, S.J. Hong, J.W. Kwak and H.S. Kim(2013). Impact of climate change on habitat of the Rhynchocypris kumgangensis in Pyungchang river. Korean J. Wetlands Research. 15: 271-280. (in Korean with English abstract) https://doi.org/10.17663/JWR.2013.15.2.271
  21. Kwater(2007) A guidebook of river in South Korea. Kwater, Daejeon, 582pp. (in Korean)
  22. Lee, J.Y., J.S. Choi, J.K. Kim, Y.S. Jang, K.Y. Lee and B.C. Kim(2008) Ecological Effects of Kumgang fat minnow (Rhynchocypris kumgangensis) on Turbid Water. Korean J. Env. Eco. 22: 184-191. (in Korean with English abstract)
  23. Miller, P.J.(1986) Reproductive biology and systematic problems in Gbioidei fishes. Indo-Pacific Fish Biology, pp. 640-647.
  24. Nowak, M., W. Popek, W. Jagusiak, S. Deptula, J. Popek, K. Tatoj, K. Kleczar and P. Epler(2009) Weight-length relationships for three fishes (Leuciscus leuciscus, Phoxinus phoxinus, Salmo trutta) from the Strwiaz River (Dniester River drainage). Arch. Pol. Fish. 17: 313-316.
  25. Song, H.B and S.S. Choi(1997) Development of eggs and larvae of Korean fat minnow, Moroco kumgangensis (Cyprinidae). Korean J. Limnol. 30: 67-74. (in Korean with English abstract)
  26. Song, H.B.(2000) Population ecology of fat minnow, Rhynchocypris kumgangensis (Cyprinidae) in Korea. Korean J. Ichthyol. 12: 101-110. (in Korean with English abstract)
  27. Uchida, K.(1939) The fishes of Tyosen. Part 1. Nematognathi, Eventognathi, Bull. Fish. Exp. Sta. Gov. Tyosen. 6. 458pp. (in Japanese)