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Prokaryotic community structures along salinity gradients of melt ponds on sea-ice floes in the Chukchi Sea

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dc.contributor.authorJang, Gwangil-
dc.contributor.authorHwang, Chung Yeon-
dc.contributor.authorKang, Sung-Ho-
dc.contributor.authorYang, Eun Jin-
dc.date.accessioned2018-04-05T15:11:33Z-
dc.date.available2018-04-05T15:11:33Z-
dc.date.issued2017-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/8307-
dc.description.abstractSea-ice floes in the Arctic Ocean are extreme environments with variable nutrients, light availability and salinity. Melt ponds are formed on sea-ice in summer by thawing of surface ice and melting snow. Recently, melt pond areas have increased in Arctic summer. In the present study, we had questions (1) who "seed prokaryotes" (Bacteria and Archaea) are in fresh melt ponds in an early stage of development, (2) how they change in community compositions with development of melt ponds, and (3) which environmental factors drive the change of prokaryotic communities. To answer the questions, prokaryotic community structures were investigated using pyrosequencing of 16S rRNA gene for 27 melt ponds (salinity of 0.2-26.8) on 2 sea-ice floes along with ambient seawater in the Chukcki Sea in August, 2014. Eleven and two phyla belonging to Bacteria and Archaea, respectively, were identified in melt ponds. The "seed prokaryotes" in melt ponds (salinity of 0.2-5) were predominantly comprised of Bacteroidetes (44-90%). A drastic change of prokaryotic community structures was observed along the salinity gradient of melt ponds. In the presentation, results will be shown in detail and discussed.-
dc.languageEnglish-
dc.titleProkaryotic community structures along salinity gradients of melt ponds on sea-ice floes in the Chukchi Sea-
dc.title.alternative척치해 유빙 융빙호의 염분에 따른 미생물 군집 구조-
dc.typeProceeding-
dc.identifier.bibliographicCitationJang, Gwangil, et al. 2017. Prokaryotic community structures along salinity gradients of melt ponds on sea-ice floes in the Chukchi Sea. 7th International Conference on Polar and Alpine Microbiology. Katuaq - Culturehouse of Greenland. 2017.09.08~2017.09.12.-
dc.citation.conferenceDate2017.09.08~2017.09.12-
dc.citation.conferenceName7th International Conference on Polar and Alpine Microbiology-
dc.citation.conferencePlaceKatuaq - Culturehouse of Greenland-
dc.description.articleClassification세미나-학술발표-
dc.subject.keyword미생물 군집-
dc.subject.keyword융빙호-
dc.subject.keyword척치해-
dc.identifier.localId2017-0042-
Appears in Collections  
2016-2018, Korea-Arctic Ocean Observing System(K-AOOS) (16-18) / Kang, Sung-Ho (PM16040; PM17040)
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