Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
권호 표지

Sexual Maturation and Feeding Habit of Korean Mandarin Fish, Siniperca scherzeri (Perciformes, Centropomidae) in the Seomjin River and Imjin River, Korea

섬진강과 임진강에 서식하는 쏘가리 Siniperca scherzeri (Perciformes, Centropomidae) 집단의 성 성숙 및 섭식특징

  • 이완옥 (국립수산과학원 중앙내수면연구소) ;
  • 백재민 (국립수산과학원 중앙내수면연구소) ;
  • 이종하 (국립수산과학원 중앙내수면연구소) ;
  • 김경환 (국립수산과학원 중앙내수면연구소) ;
  • 김치홍 (국립수산과학원 중앙내수면연구소) ;
  • 윤승운 (전북대학교 생물과학부)
  • Received : 2011.11.03
  • Accepted : 2012.02.02
  • Published : 2012.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

This study was conducted to investigate the reproductive ecology of the Korean Mandarin Fish, Siniperca scherzeri in Seomjin River and Imjin River from April to October 2008. After have investigating the relationship between standard length (SL) and Gonadosomatic index (GSI) of Siniperca scherzeri, we can conclude that the body length of maturation was over 200mm SL in case of females and over 180mm SL in males. The GSI of the females that were from Seomjin river was the highest in April (7.43%), and gradually decreased after May (5.55%) and June (3.58%). The GSI was decreased sharply in August and indicated the lowest value in September (0.44%). The GSI of the females that were from Imjin river showed similar tendency of females' GSI from Seomjin river. The GSI of males from Imjin river was totally higher than that of females, it was 5.96% in April, and 8.03% in May. It was lowered in early June, and late June, it indicated 2.12%. In September, it was the lowest value (0.20%), and increased after October (0.54%). The result of histological study of ovary presented similar result of the study of GSI in Seomjin river and Imjin river. The ratio that fishes constitute in stomach contents of Siniperca scherzeri was 92% in Seomjin river and 90% in Imjin river. Digestion of food organisms and the ratio of unidentifiable fishes in stomach contents was fairly high, and it was 50% in Seomjin river and 72.2% in Imjin river. In the period of study, eating ratio was very low 38.3% (36 ind.) in Seomjin river and 21.8 (53 ind.) in Imjin river.

2008년 4월부터 10월까지 임진강과 섬진강에서 쏘가리의 산란 생태를 조사하였다. 산란에 참여하는 쏘가리 개체군의 체장과 생식소성숙도지수(GSI)의 상관관계를 조사한 결과 암컷은 체장 200mm 이상의 개체에서 성적으로 성숙하였고, 수컷은 체장 180mm 이상이 성숙되었다. 섬진강산 암컷의 GSI는 4월에 가장 높은 값인 7.43%를 나타냈지만, 이후 점차 감소하여 5월에 5.55%, 6월에 3.58%로 점진적으로 감소하다가 8월에 급격히 감소하고, 9월에 연중 최저치인 0.44%로 낮아졌다. 임진강산 암컷은 섬진강산 암컷과 비슷한 경향을 보였다. 임진강산 수컷의 GSI 값은 암컷보다 높아서 4월 5.96%, 5월에는 8.03%까지 높아졌고, 6월 초부터 낮아졌으며, 6월말에 2.12%이었고, 9월에 0.2% 이하로 가장 낮게 나타난 후 점차 상승하여 10월에 0.54%이었다. 암컷의 생식소를 조직학적 관찰한 결과 섬진강과 임진강 집단에서 모두 GSI의 변화는 비슷하게 발달하였다. 쏘가리 위 내용물 중 어류가 차지하는 비율은 섬진강과 임진강에서 각각 92.0%, 90.0%로 나타나 쏘가리의 가장 중요한 먹이생물이었다. 쏘가리 위 내용물 중 소화가 많이 진행되어 종의 동정이 불가능한 어류의 비율이 각각 50.0%, 72.2%로 높게 나타났다. 쏘가리의 조사기간 중에 섭식율은 섬진강이 36개체로 38.3%, 임진강이 53개체로 21.8%로 매우 낮았다.

Keywords

References

  1. Aida, K.P., V. Nagama and T. Hibiya(1973) Physiological studies on the gonadal maturation of fish. I. Sexual difference in composition of plasma protein of ayu in relation to gonadal maturation. Bull. Jap. Soc. Sci. Fish. 39: 1,091-1,106.
  2. Baeck, G.W., J.W. Kim, S.H. Huh and J.M. Park(2007) Maturation and spawning of female spanish mackerel (Scomberomorus niphonius) in the coastal waters of Busan. J. Kor. Fish. Soc. 40(4): 248-253.
  3. Baeck, G.W. and S.H. Huh(2004) Feeding Habits of brown barracuda (Sphyraena pinguis, Teleostei) in the Coastal Waters of Gadeok-do, Korea. J. Kor. Fish. Soc. 37(6): 505-510.
  4. Cha, H.K., H.C. Kwon, S.I. Lee, J.H. Yang, D.S. Chang and Y.Y. Chun(2008) Maturity and spawning of Korean flounder Glyptocephalus stelleri (Schmidt) in the East Sea of Korea. Kor. J. Icht. 20(4): 263-271.
  5. Fishery productive statistical system(2007). http://fs.fips.go.kr/main.jsp.
  6. Huh, S.H. and S.N. Kwak(1997) Feeding habits of Pholis nebulosa. Kor. J. Icht. 9(1): 22-29.
  7. Huh, S.H. and S.N. Kwak(1998) Feeding habits of Favonigobius gymnauchen in the eelgrass (Zostera marina) bed in Kwangyang Bay. J. Kor. Fish. Soc. 31(3): 372-379.
  8. Huh, S.H., S.N. Kwak and H.W. Kim(2008a) Feeding habits of Pseudoblennius percoides (Pisces; Cottidae) in an Eelgrass (Zostera marina) bed of Dongdae Bay. Kor. J. Icht. 21(1): 45-53.
  9. Huh, S.H., K.M. Nam, H.G. Choo and G.W. Baeck(2008b) Feeding Habits of Sebastes thompsoni in the Coastal Waters off Busan, Korea. J. Kor. Fish. Soc. 41(1): 32-38.
  10. Huh, S.H., J.M. Park, K.M. Nam, S.C. Park, C.I. Park and G.W. Baeck(2008c) Feeding Habits of Scorpaena neglecta in the Coastal Waters of Busan. Kor. J. Icht. 20(2): 117-122.
  11. Huh, S.H., J.M. Park and G.W. Baeck(2006a) Feeding Habits of Spanish Mackerel (Scomberomorus niphonius) in the Southern Sea of Korea. J. Kor. Fish. Soc. 39(1): 35-41.
  12. Huh, S.H., J.M. Park and G.W. Baeck(2006b) Feeding Habits of John Dory Zeus faber in the Coastal Waters of Gori, Korea. J. Kor. Fish. Soc. 39(4): 357-362.
  13. Hwang, H.K., C.B. Park, Y.J. Kang, J.H. Lee, S. Rho and Y.D. Lee(2004) Gonadal development and reproductive cycle of the Rabbitfish (Siganus canaliculatus). J. Kor. Fish. Soc. 37(5): 393-399.
  14. Jun, J.C., D.S. Sim, Y.H. Kim and E.Y. Chung(2003) Sexual maturation of the Stone Flounder, Kareius bicoloratus, on the west coast of Korea. Kor. J. Icht. 15(4): 259-271.
  15. Kim, M.J. and C.B. Song(2011) Origin of the Korean Mandarin Fish, Siniperca scherzeri and its molecular phylogenetic relationships to other Siniperca fishes. Kor. J. Icht. 23(2): 95-105.
  16. Kim, I.S.(1997) Illustrated Encyclopedia of Fauna & Flora of Korea Vol. 37 (Freshwater Fishes). Ministry of Education, Seoul, 629pp.
  17. Kwak, S.N. and S.H. Huh(2003) Feeding habit of Limanda yokohamae in the Eelgrass (Zostera marina) bed in Kwangyang Bay. J. Kor. Fish. Soc. 36(5): 522-527.
  18. Lee, W.O., S.W. Yoon, J.H. Kim and D.H. Kim(2008) Comparison of growth and spawning characteristics of Ayu, Plecoglossus altivelis in Seomjin River and streams flowing to the East Sea, Korea. Kor. J. Icht. 20(3): 179-189.
  19. Lee, W.O. and J.Y. Lee(1997) Studies on the Development of Aquaculture Technique in Siniperca scherzeri (Pisces, Centropomidae). National Fisheries Research and Development Agency, pp. 3-34.
  20. Lee, W.O., J.Y. Lee, S.J. Son and N.J. Choi(1997) Early life history and reproductive ecology of mandarin fish, Siniperca scherzeri (Pisces, Centropomidae) in Soyang lake. Kor. J. Icht. 9(1): 99-107.
  21. Lee, W.O., S.I. Jang and J.Y. Lee(1998) Studies on early life history the Korean mandarin fish Siniperca scherzeri (Pisces, Centropomidae). Kor. J. Icht. 10(1): 1-10.
  22. Lee, Y.A., B.M. Lee, K.C. Choi, S.Y. Park and I.C. Bang(2005) Early gonadogenesis and sex differentiation of the Mandarin fish Siniperca scherzeri. Kor. J. Aqua. 18(2): 76-80.
  23. Moyle, P.B. and J.J. Cech(1996) Fishes: An Introduction to Ichthyology (3rd ed). Prentice Hall Press, New Jersey, pp. 129-131.
  24. Myoung, J.G., J.H. Mun, J.K. Kim, K.D. Park, C.B. Kang, Y.U. Kim and J.T. Park(2001) Osteological development of larvae and juveniles of Korean mandarin fish, Siniperca scherzeri(Perciformes, Centropomidae). Kor. J. Icht. 13(2): 129-135. (in Korean with English abstract)
  25. NFRDI(2009) Processed Marine Products Animal and Plant Breed by Capture Prohibition Relation Provision Investigation Report. Hanglass, Busan, 313pp.
  26. Nier(2008) Ministry of Environment. http://water.nier.go.kr.
  27. Park, K.Y., K.H. Park, S.I. Lee, H.W. Park, S.E. Hong, J.H. Yang and S.H. Choi(2007) Maturity and spawning of Black edged sculpin, Gymnocanthus herzensteini in the East Sea. Kor. J. Icht. 19(2): 101-106.