Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
권호 표지
DOI QR코드

DOI QR Code

The Distribution and Interannual Variation in Nutrients, Chlorophyll-a, and Suspended Solids in the Northern East China Sea during the Summer

동중국해 북부해역에서 여름동안 영양염, 엽록소, 부유물질의 분포 특성 및 연간 변화

  • 김동선 (한국해양연구원 해양환경연구본부) ;
  • 김경희 (한국해양연구원 해양환경연구본부) ;
  • 심정희 (한국해양연구원 해양환경연구본부) ;
  • 유신재 (한국해양연구원 해양환경연구본부)
  • Published : 2007.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

In order to find out the annual variations in the marine ecosystem of the East China Sea, temperature, salinity, nutrients, chlorophyll-a, suspended solids, and suspended particulate organic carbon were extensively investigated in the northern East China Sea during the Summer of 2003 and 2006. During the Summer of 2003, the northern East China Sea was not significantly affected by the input of fresh waters from the Changjiang River. During the Summer of 2006, however, fresh waters of the Changjiang River intruded into the western part of the study area where temperature, nitrate, and phosphate in the surface waters were higher than in the other areas, and salinity, silicate, and suspended solids in the surface waters were lower. As a result of the increase in nitrate and phosphate concentrations, concentrations of chlorophyll-a and suspended particulate organic carbon increased in the western part compared with the other areas. However, the depth-integrated chlorophyll-a concentrations measured during the Summer of 2003 were rather similar to those during the Summer of 2006, and not considerably different from those measured in the East China sea during the Summer of 1994 and 1998. Therefore, the depth-integrated chlorophyll-a concentrations have not significantly changed in the East China Sea over the last 12 years. The lower concentrations of silicate and suspended solids in the western part may be related to construction of the Three-Gorges Dam since the concentrations of silicate and suspended solids in fresh waters of the Changjiang River have significantly decreased after construction of the Three-Gorges Dam in June 2003.

Keywords

References

  1. 김기현, 한정희. 2000. 라듐 동위원소와 염분을 이용한 동중국해, 남해 및 대한해협 해수의 기원과 혼합비율 추정. 한국해양학회지 바다, 5, 216-223
  2. 김동선, 심정희, 이정아, 강영철. 2005. 동중국해 북부해역에서 봄과 여름동안 영양염과 엽록소의 분포특성. Ocean and Polar Res., 27, 251-263
  3. 손영태, 이상호, 이재철, 김정창. 2003. 동중국해 북부해역의 겨울철 수계와 전선구조. 한국해양학회지 바다, 8, 327-339
  4. 양한섭, 이동섭. 1999. 여름철 동중국해 및 남중국해 표층수의 Ra 동위원소를 이용한 수계분석. 한국해양학회지 바다, 4, 305-311
  5. 오현주, 강영실, 박정훈. 1999. 동중국해 북부해역 클로로필-a의 분포특성과 해양환경 특성. 한국수산학회지, 32, 88-97
  6. 이대인, 조현서, 윤양호, 최영찬, 이정훈. 2005. 남해 및 동중국해의 하계 수질 및 저질 환경평가. 한국해양공학회지, 8, 83-99
  7. 정창수, 홍기훈, 김석현, 김영일, 문덕수, 박준건, 박용철, 이재학, 이흥재. 2000. 동중국해 외대륙붕 저층수의 영양염기원. 한국해양공학회지, 3, 13-23
  8. 허만영, 최영찬. 2004. 제주도 서남방 동중국해에서 하계 해양전선 형성과 수질특성. 한국해양공학회지, 7, 64-69
  9. Beardsley, R.C. R. Limeburner, H. Yu, and G.A. Cannon. 1985. Discharge of the Changjiang (Yangtze River) into the East China Sea. Continental Shelf Res., 4, 57-76 https://doi.org/10.1016/0278-4343(85)90022-6
  10. Chang, J., F.-K. Shiah, G.-G. Gong, and K.P. Chiang. 2003. Cross-shelf variation in carbon-to-chlorophyll a ratios in the East China Sea, summer 1998. Deep-Sea Res. II, 50, 1237-1247 https://doi.org/10.1016/S0967-0645(03)00020-1
  11. Chen, C., J. Zhu, R.C. Beardsley, and P.J. Franks. 2003. Physical-biological sources for dense algal blooms near the Changjiang River. Geophs. Res. Lett., 30, 22 https://doi.org/10.1029/2002GL016391
  12. Chen, C.T.A. and S.L. Wang. 1999. Carbon, alkalinity and nutrient budgets on the East China Sea continental shelf. J. Geophys. Res., 104, 20,675-20,686 https://doi.org/10.1029/1999JC900055
  13. Chen, C.T.A., R. Ruo, S.C. Pai, C.T. Liu, and G.T.F. Wong. 1995. Exchange of water masses between the East China Sea and the Kuroshio off northeastern Taiwan. Cont. Shelf Res., 15, 19-39 https://doi.org/10.1016/0278-4343(93)E0001-O
  14. Chen, Y.L., H.-Y. Chen, G.-C. Gong, Y.-H. Lin, S. Jan, and M. Takahashi. 2004. Phytoplankton production during a summer coastal upwelling in the East China Sea. Cont. Shelf Res., 24, 1321-1338 https://doi.org/10.1016/j.csr.2004.04.002
  15. Edmond, J.M., A. Spivack, B.C. Grant, M.-H. Hu, Z. Chen, S. Chen, and X. Zeng. 1985. Chemical dynamics of the Changjiang estuary. Cont. Shelf Res., 4, 17-36 https://doi.org/10.1016/0278-4343(85)90019-6
  16. Gong, G.-C., J. Chang, K.-P. Chiang, T.-M. Hsiung, C.-C. Hung, S.-W. Duan, and L.A. Codispoti. 2006. Reduction of primary production and changing of nutrient ratio in the East China Sea: effect of the Three Gorges dam? Geophys. Res. Lett., 33, LO7610 https://doi.org/10.1029/2006GL025800
  17. Gong, G.-C., Y.-H. Wen, B.-W. Wang, and G.-J. Liu. 2003. Seasonal variation of chlorophyll a concentration, primary production and environmental conditions in the subtropical East China Sea. Deep-Sea Res. II, 50, 1219-1236 https://doi.org/10.1016/S0967-0645(03)00019-5
  18. Gong, G.-C., Y.-I. Chen, and K.-K. Liu. 1996. Chemical hydrography and chlorophyll a distribution in the East China Sea in summer: implications in nutrient dynamics. Cont. Shelf Res., 16, 1561-1590 https://doi.org/10.1016/0278-4343(96)00005-2
  19. Hama, T., K.H. Shin, and N. Handa. 1997. Spatial variability in the primary productivity in the East China Sea and its adjacent waters. J. Oceanogr., 53, 41-51 https://doi.org/10.1007/BF02700748
  20. Humborg, C.V., A.C. Ittekkot, and B.V. Bodungen. 1997. Effect of Danube River dam on Black Sea biogeochemistry and ecosystem structure. Nature, 386, 385-388 https://doi.org/10.1038/386385a0
  21. Jiao, N. et al. 2007. Ecological anomalies in the East China Sea: impacts of the Three Gorges dam? Water Res., 41, 1287-1293 https://doi.org/10.1016/j.watres.2006.11.053
  22. Kim, D., J. Shim, and S. Yoo. 2006. Seasonal variations in nutrients and chlorophyll-aconcentrations in the northern East China Sea. Ocean Sci. J., 41, 12-137 https://doi.org/10.1007/BF03022418
  23. Li, M., K. Xu, M. Watanabe, and Z. Chen. 2007. Long-term variations in dissolved silicate, nitrogen, and phosphorus flux from the Yangtze River into the East China Sea and impacts on estuarine ecosystem. Estuar. Coast. Shelf Sci., 71, 3-12 https://doi.org/10.1016/j.ecss.2006.08.013
  24. Lie, H.-J., C.-H. Cho, J.-H. Lee, and S. Lee. 2003. Structure and eastward extension of the Changjiang River plume in the East China Sea. J. Geophys. Res., 108, 3077 https://doi.org/10.1029/2001JC001194
  25. Liu, K.-K., G.-C. Gong, C.-Z. Shyu, S.-C. Pai, C.-L. Wei, and S.-Y. Chao. 1992. Response of Kuroshio upwelling to the onset of the northeast monsoon in the sea north of Taiwan: Observations and a numerical simulation. J. Geophys. Res., 97, 12,511-12,526 https://doi.org/10.1029/92JC01179
  26. Milliman, J.D. 1997. Blessed dam or damned dams? Nature, 386, 325-327 https://doi.org/10.1038/386325a0
  27. Su, Y. and X. Weng. 1994. Water masses in China Seas. p. 3-16. In: Oceanography of China Seas. eds. by D. Zhou, Y.-B. Liang, and C.K. Zeng. Kluwer Academic, Netherlands
  28. Wang, B.-D., X.-L. Wang, and R. Zhan. 2003. Nutrient conditions in the Yellow Sea and the East China Sea. Estuar. Coast. Shelf Sci., 58, 127-136 https://doi.org/10.1016/S0272-7714(03)00067-2
  29. Wong, G.T.F., G.-C. Gong, K.-K. Liu, and S.-C. Pai. 1998. 'Excess Nitrate' in the East China Sea. Estuar. Coast. Shelf Sci., 46, 411-418 https://doi.org/10.1006/ecss.1997.0287
  30. Wong, G.T.F., S.-C. Pai, K.-K. Liu, C.-T. Liu, and C.T.A. Chen. 1991. Variability of the chemical hydrography at the frontal region between the East China Sea and the Kuroshio north-east of Taiwan. Estuar. Coast. Shelf Sci., 33, 105-120 https://doi.org/10.1016/0272-7714(91)90001-R
  31. Yamamoto, T. 1995. Contribution of micro- and nanophytoplankton cell carbon to particulate organic carbon in the East China Sea during May 1980. J. Fac. Appl. Biol. Sci., 34, 147-160
  32. Yang, Z., H. Wang, Y. Saito, J.D. Milliman, K. Xu, S. Qiao, and G. Shi. 2006. Dam impacts on the Chanjiang River sediment discharge to the sea: The past 55 years and after the Three Gorges Dam. Water Resour. Res., 42, W04407 https://doi.org/10.1029/2005WR003970

Cited by

  1. Effects of suspended sediments on reproductive responses of Paracalanus sp. (Copepoda: Calanoida) in the laboratory vol.34, pp.7, 2012, https://doi.org/10.1093/plankt/fbs033
  2. Dinoflagellate cyst assemblages from the northern shelf sediments of the East China Sea: An indicator of marine productivity vol.96-97, 2012, https://doi.org/10.1016/j.marmicro.2012.09.003