지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Physiochemical characters of sea waters during summer flood- and winter dry-seasons and their spatial variations were investigated along the coastal area off the eastern South Sea,Korea. Using the hierarchical clustering method, in this study, we present comprehensive analyses of coastal waters masses and their seasonal variations. The results revealed that the coastal water of the study area was classified into six water masses (A to F). During summer season, the surface water was mainly occupied by the coastal pseudo-estuarine water (water mass B) with low salinity and high nutrients and the river-dominated coastal water (water mass C) with low nutrients,respectively. The bottom water was dominated by cold water (water mass D) with very low temperature,high salinity and high nutrients, compared to masses of surface water. Notably, the water mass B, with high concentrations of nutrients (silicate and nitrogen) and low salinity, which is strongly controlled by the water quality of river freshwater, seems to play an important role in controlling the water quality and further regulating physical processes on ecosystem in the eastern coastal area of South Sea. The water mass D (bottom cold water) coupled with a strong thermocline,which exists in near-bottom layer along the western margin of Korea Strait, has a low temperature,pH and DO, but abundant nutrients. This water mass disappears in winter owing to strong vertical mixing, and subsequently may act as a pool for nutrients during winter dry-season.
On the other hand, vertically well-mixed water column during the winter season was typically occupied by the Tsushima (water mass E) and the coastal water (water mass F) with a development of coastal front formed in a transition zone between them. These winter water masses were characterized by low nutrient concentration and balance in N/P ratio, compared with summer season with high nutrient concentrations and strong N-limitation. Accordingly, the analysis of water masses will help one to better chemical and biological processes in coastal area. In most of the study area,characteristically, the growth of phytoplankton community is limited by nitrogen, which is clearly different with coastal environment of West Sea of Korea, with a relative lack of phosphorus. It showed the western and the southern coasts in Korea are substantially different from each other in environmental and ecological characteristics.
목차
등록된 정보가 없습니다.
참고문헌 (39)
참고문헌 신청
/ / 기상청
Brzezinski M. A. / 1985 / The Si:C:N ratio of marine diatoms: interspecific variability and the effect of some environmental variables / J. Phycol 21 : 347 ~ 357
Cho KD / 1983 / Structure of shelf front and distribution of planktons in the eastern part of the Yellow Sea / Bull. Korean Fish Soc 16 : 316 ~ 329
Diaz RJ / 1995 / Marine benthic hypoxia: A review of its ecological effects and gehavioral responseds of benthic macrofauna / Oceanogr Mar. Bio. Ann. Rev 33 : 245 ~ 303
Fisher TR / 1992 / Nutrient limitation of phytoplankton in Chesapeake Bay / Mar. Ecol. Prog. Ser 82 : 51 ~ 63
Brzezinski M. A. / 1985 / The Si:C:N ratio of marine diatoms: interspecific variability and the effect of some environmental variables / J. Phycol 21 : 347 ~ 357
Cho KD / 1983 / Structure of shelf front and distribution of planktons in the eastern part of the Yellow Sea / Bull. Korean Fish Soc 16 : 316 ~ 329
Diaz RJ / 1995 / Marine benthic hypoxia: A review of its ecological effects and gehavioral responseds of benthic macrofauna / Oceanogr Mar. Bio. Ann. Rev 33 : 245 ~ 303
Fisher TR / 1992 / Nutrient limitation of phytoplankton in Chesapeake Bay / Mar. Ecol. Prog. Ser 82 : 51 ~ 63
이 논문의 저자 정보
최근 본 자료
댓글(0)
0