We investigated the characteristics of the thermohaline structure and phytoplankton community from the southwestern areas of Jeju to the nothern areas of Taiwan in the Ease China Sea, in June 2004. According to the analysis of a T-S diagram, three characteristic of water masses were identified. We classified them into the mixed water mass by the Chiness continental coastal waters and Yellow Sea cold water (Region A), Chinese continental coastal waters (Region B) and Taiwan warm current (Region C). Region A was characterized by low temperature, low salinity, high density and high Chl-a concentration. Region B was characterized by high temperature, low salinity, low density and high Chl-a and Region C was characterized high temperature, high salinity, low density and low Chl-a concentration. The phytoplankton community identified a total of 56 species belonging to 31 genera. The dominant species was mainly dinoflagellates, Gymnodinium breve, Scrippsiella trochoidea, Ceratium fusus, Prororcentrum triestinum, centric diatoms, Chaetoceros lorenzianus, Leptocylindrus danicus, Proboscia alata, Skeletonema costatum and pennate diatoms, Pseudonitzschia pungens, Cylidrotheca closterium. Standing crops of phytoplakton fluctuated between 0.1×102 cells/L and 5.7×104 cells/L by dominance of dinoflagellates. In the phytoplankton community, the Region A was characterized by the various species composition in 39 species, the dominint species with di-atomes, Pn. pungen, Ch. lorenzianus and standing crops from 6.9 cells/ml to 56.6 cells/ml, Region B by the various species composition in 37 species, the dominant species with dinoflagellates, G.breve, S. trochoidea and standing crops from 4.6 cells/ml to 26.7 cells/ml, and the Region C by low species number with 28 species, the dominant species with one dinoflagellate, S.trochoidea and one diatom, L.danicus and very low standing crops from 0.1 cells/ml to 5.7 cells/ml. Phytoplankton productivity in the East China Sea was controlled by Chinese continental coastal waters which include a high concentrations of nutrients.
2001, 2003년의 7월부터 10월까지 대청호에 위치한 댐 지역에서 식물플랑크톤 군집, 환경요인 및 강우량을 조사하였다. 조사 기간동안의 월평균 강우량은 2001, 2003년 각각 91.3, 265.3mm로 조사되었다. 최대 Chl. a의 농도는 2001, 2003년 각각 45.4, 131.5 ㎍ L/sup -1/로 조사되었다. 남조류 세포수는 2003년 최대 49,000 cells mL/sup -1/로 조사되었고, 2001년은 최대 200,000
경기도 수원시와 평택시에 위치한 광교저수지, 원천저수지, 서호, 남양호, 아산호 등 5개 호소에 대해 2003년 3월부터 11월까지 계절별로 4회의 채집을 실시하고, 식물플랑크톤의 분포 및 현존량을 분석하였다. 분석결과 본 수역에는 5문, 5강, 1아강, 16목, 26과, 1아과, 72속, 167종, 28변종, 1아종, 3품종의 총 199분류군의 식물플랑크톤이 분포하는 것으로 나타났다. 전체 식물플랑크톤 중 청정수역을 지표하는 분류군은 9월 광교저수지에
본 연구는 해양 식물플랑크톤에 대한 지속성 유기오염물질의 영향을 이해하기 위한 목적으로, 우리나라 연안역에서 연간 우점적으로 나타나는 식물플랑크톤 주요 5종 즉, 규조류 Skeletonema costatun, 침편모조류 Heterosigma akashiwo, 와편모조류 Prorocentrum dentatum, P. minimum, Akashiwo sanguinea를 이용하여 benzo〔a〕pyrene(PAHs)에 72시간동안 노출시킨 다음 각 종의 성장
We carried out a study on thermohaline structure and phytoplankton com munity in the East China Sea during early summer in 2005. As a result of marine environment and phytoplankton community, three characteristics of water type were identified. The former
The spatio-temporal distribution and seasonal fluctuations of phytoplankton community were carried out in the Southwestern parts of Deukryang Bay of the Korean South Sea from July 1997 to January 1998. A total of 60 species of phytoplankton belonging to 4