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Bacterial biogeography influenced by shelf?basin exchange in the Arctic surface sediment at the Chukchi Borderland

Cited 1 time in scopus
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Title
Bacterial biogeography influenced by shelf?basin exchange in the Arctic surface sediment at the Chukchi Borderland
Other Titles
척치근방에서 북극해 표층 퇴적물의 순환의 영향을 받는 박테리아 분포
Authors
Han, Dukki
Hur, Hor-Gil
Lee, Yoo Kyung
Michael J. Sadowsky
Kim, Hyung J.
Ha, Ho Kyung
Lee, Mi Jung
Keywords
Arctic Surface Sediment; Bacterial Biogeography; Chukchi
Issue Date
2016
Citation
Han, Dukki, et al. 2016. "Bacterial biogeography influenced by shelf?basin exchange in the Arctic surface sediment at the Chukchi Borderland". ENVIRONMENTAL MICROBIOLOGY, 18: 668-678.
Abstract
It has been known that continental shelves around the Arctic Ocean play a major role in the ventilation of the deep basins as a consequence of shelf-basin exchange. In the present study, we found that bacterial assemblage of the surface sediment was different from that of seawater while seawater harbored local bacterial assemblages in response to the Arctic hydrography. This finding suggests that the Arctic seafloor sediments may have distinctive bacterial biogeography. Moreover, the distribution of bacterial assemblages and physicochemical properties in surface sediments changed gradually from the Arctic continental shelf to deep-sea basin. Based on the results, bacterial biogeography in the Arctic seafloor sediments may be influenced by winnowing and redeposition of surface sediments through the sediment gravity flow. The present study offers a deeper understanding of shelf convection and its role for the construction of bacterial assemblages in the Arctic Ocean.
URI
http://repository.kopri.re.kr/handle/201206/7373
DOI
http://dx.doi.org/10.1111/1462-2920.13064
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