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Spatial distributions of bacteria and viruses along a transect across the Northwest Pacific from the East Sea to the Bering Sea during summer 2012

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Title
Spatial distributions of bacteria and viruses along a transect across the Northwest Pacific from the East Sea to the Bering Sea during summer 2012
Other Titles
2012년 하계 동해에서 베링해에 이르는 북서태평양 박테리아와 바이러스의 공간적 분포
Authors
Hwang, Chung Yeon
Rhee, Tae Siek
Bang, Minyoung
Keywords
Bacteria; Northwest Pacific; Virus
Issue Date
2012
Citation
Hwang, Chung Yeon, Rhee, Tae Siek, Bang, Minyoung. 2012. Spatial distributions of bacteria and viruses along a transect across the Northwest Pacific from the East Sea to the Bering Sea during summer 2012. 한국해양학회. 한국해양학회. 2012.11.01~.
Abstract
Bacteria and viruses are at the bottom of the marine food web and play important roles in biogeochemical cycles of organic matters and nutrients. In this cruise, abundances of total bacteria, cyanobacteria and viruses, and bacterial community structures were investigated in the epipelagic zone (upper 100 m) at 12 stations along a transect across the Northwest Pacific from the East Sea to the Bering Sea. BA ranged from 0.1 to 1.9x106 cells ml-1 in the upper 100 m of the water column during the cruise. Maximum values of BA were mostly found in the surface or at subsurface chlorophyll maximum (SCM) depth, which was similar pattern to that of chl a concentration. CBA ranged from ND (not detected) to 1.8x105 cells ml-1 in the study area. CBA was highest at the SCM depth in the East Sea (1.8x105 cells ml-1), but decreased to ND in the whole water column in the Bering Sea. In every sample, viruses was most abundant entities and exceeded to BA by ca.7-fold. Interestingly, VA was relatively higher in high latitude stations than low latitude ones. Results of in-depth analyses of relationships between microbial variables and environmental variables will be discussed in the oral presentation.munity structures were investigated in the epipelagic zone (upper 100 m) at 12 stations along a transect across the Northwest Pacific from the East Sea to the Bering Sea. BA ranged from 0.1 to 1.9x106 cells ml-1 in the upper 100 m of the water column during the cruise. Maximum values of BA were mostly found in the surface or at subsurface chlorophyll maximum (SCM) depth, which was similar pattern to that of chl a concentration. CBA ranged from ND (not detected) to 1.8x105 cells ml-1 in the study area. CBA was highest at the SCM depth in the East Sea (1.8x105 cells ml-1), but decreased to ND in the whole water column in the Bering Sea. In every sample, viruses was most abundant entities and exceeded to BA by ca.7-fold. Interestingly, VA was relativ
URI
http://repository.kopri.re.kr/handle/201206/8405
Conference Name
한국해양학회
Conference Place
한국해양학회
Conference Date
2012.11.01~
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