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A Study on the Freshwater Algal Flora Occurring in Temporary Ponds around the Dasan Arctic Station, Ny-Alesund (Norway), and the Molecular Characteristics of Chlamydomonas 18S rDNA

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Title
A Study on the Freshwater Algal Flora Occurring in Temporary Ponds around the Dasan Arctic Station, Ny-Alesund (Norway), and the Molecular Characteristics of Chlamydomonas 18S rDNA
Other Titles
노르웨이 북극다산기지 주변에 형성된 일시적 담수지의 미세조류 및 Chlamydomonas 18S rDNA의 유전자 특성
Authors
Ki, Jang-Seu
Kang, Sung-Ho
Han, Myung-Soo
박범수
Jung, Seung Won
Subject
Oceanography
Keywords
Dasan Arctic Station; freshwater algae; biomass; Chlamydomonas; 18S rDNA
Issue Date
2006
Citation
Ki, Jang-Seu, et al. 2006. "A Study on the Freshwater Algal Flora Occurring in Temporary Ponds around the Dasan Arctic Station, Ny-Alesund (Norway), and the Molecular Characteristics of Chlamydomonas 18S rDNA". Korea Institute of Ocean Science & Technology, 28: 107-117.
Abstract
Freshwater algal studies in North polar environments are relatively few. This study presented the algal-flora, -biomass and genetic features of dominant cells collected from temporary ponds around the Polar Research Station (PRS), Norway. Water samples were collected from 4 stations around PRS, and analyzed for their environmental and biological variables. Water temperature, salinity and conductivity ranged from 5 to 10oC, 0.1 to 0.3 and 0.21 to 0.36 mS/cm, respectively. Chlorophyll a concentration ranged from 1.8 to 11.1 mg/l, and that of the size-fractionated cells was recorded from 0.7 to 1.1 mg/l in picoplankton, 0.3 to 6.5 mg/l in nanoplankton, and 0.4 to 3.9 mg/l in microplankton, respectively. Algal flora in the present study was recorded as 10 genera, in which Chlamydomonas, particularly, was dominant in all studied sites. By comparison of Chlamydomonas 18S rDNA sequences, including two isolates from PRS, they formed a distinct clade against others: sequence similarity was significantly low (
URI
http://repository.kopri.re.kr/handle/201206/6681
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