Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting
From July to August 2010, the IBRV ARAON journeyed to the Pacific sector of the Arctic Ocean to monitor bacterial variation in Arctic summer surface-waters, and temperature, salinity, fluorescence, and nutrient concentrations were determined during the ice-melting season. Among the measured physicoc...
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ftpubmed:oai:pubmedcentral.nih.gov:3908934 2023-05-15T14:49:20+02:00 Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting Han, Dukki Kang, Ilnam Ha, Ho Kyung Kim, Hyun Cheol Kim, Ok-Sun Lee, Bang Yong Cho, Jang-Cheon Hur, Hor-Gil Lee, Yoo Kyung 2014-01-31 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908934 http://www.ncbi.nlm.nih.gov/pubmed/24497990 https://doi.org/10.1371/journal.pone.0086887 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908934 http://www.ncbi.nlm.nih.gov/pubmed/24497990 http://dx.doi.org/10.1371/journal.pone.0086887 http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2014 ftpubmed https://doi.org/10.1371/journal.pone.0086887 2014-02-09T01:40:06Z From July to August 2010, the IBRV ARAON journeyed to the Pacific sector of the Arctic Ocean to monitor bacterial variation in Arctic summer surface-waters, and temperature, salinity, fluorescence, and nutrient concentrations were determined during the ice-melting season. Among the measured physicochemical parameters, we observed a strong negative correlation between temperature and salinity, and consequently hypothesized that the melting ice decreased water salinity. The bacterial community compositions of 15 samples, includicng seawater, sea-ice, and melting pond water, were determined using a pyrosequencing approach and were categorized into three habitats: (1) surface seawater, (2) ice core, and (3) melting pond. Analysis of these samples indicated the presence of local bacterial communities; a deduction that was further corroborated by the discovery of seawater- and ice-specific bacterial phylotypes. In all samples, the Alphaproteobacteria, Flavobacteria, and Gammaproteobacteria taxa composed the majority of the bacterial communities. Among these, Alphaproteobacteria was the most abundant and present in all samples, and its variation differed among the habitats studied. Linear regression analysis suggested that changes in salinity could affect the relative proportion of Alphaproteobacteria in the surface water. In addition, the species-sorting model was applied to evaluate the population dynamics and environmental heterogeneity in the bacterial communities of surface mixed layer in the Arctic Ocean during sea-ice melting. Text Arctic Arctic Ocean ice core Sea ice PubMed Central (PMC) Arctic Arctic Ocean Pacific PLoS ONE 9 1 e86887 |
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Research Article Han, Dukki Kang, Ilnam Ha, Ho Kyung Kim, Hyun Cheol Kim, Ok-Sun Lee, Bang Yong Cho, Jang-Cheon Hur, Hor-Gil Lee, Yoo Kyung Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting |
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Research Article |
description |
From July to August 2010, the IBRV ARAON journeyed to the Pacific sector of the Arctic Ocean to monitor bacterial variation in Arctic summer surface-waters, and temperature, salinity, fluorescence, and nutrient concentrations were determined during the ice-melting season. Among the measured physicochemical parameters, we observed a strong negative correlation between temperature and salinity, and consequently hypothesized that the melting ice decreased water salinity. The bacterial community compositions of 15 samples, includicng seawater, sea-ice, and melting pond water, were determined using a pyrosequencing approach and were categorized into three habitats: (1) surface seawater, (2) ice core, and (3) melting pond. Analysis of these samples indicated the presence of local bacterial communities; a deduction that was further corroborated by the discovery of seawater- and ice-specific bacterial phylotypes. In all samples, the Alphaproteobacteria, Flavobacteria, and Gammaproteobacteria taxa composed the majority of the bacterial communities. Among these, Alphaproteobacteria was the most abundant and present in all samples, and its variation differed among the habitats studied. Linear regression analysis suggested that changes in salinity could affect the relative proportion of Alphaproteobacteria in the surface water. In addition, the species-sorting model was applied to evaluate the population dynamics and environmental heterogeneity in the bacterial communities of surface mixed layer in the Arctic Ocean during sea-ice melting. |
format |
Text |
author |
Han, Dukki Kang, Ilnam Ha, Ho Kyung Kim, Hyun Cheol Kim, Ok-Sun Lee, Bang Yong Cho, Jang-Cheon Hur, Hor-Gil Lee, Yoo Kyung |
author_facet |
Han, Dukki Kang, Ilnam Ha, Ho Kyung Kim, Hyun Cheol Kim, Ok-Sun Lee, Bang Yong Cho, Jang-Cheon Hur, Hor-Gil Lee, Yoo Kyung |
author_sort |
Han, Dukki |
title |
Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting |
title_short |
Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting |
title_full |
Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting |
title_fullStr |
Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting |
title_full_unstemmed |
Bacterial Communities of Surface Mixed Layer in the Pacific Sector of the Western Arctic Ocean during Sea-Ice Melting |
title_sort |
bacterial communities of surface mixed layer in the pacific sector of the western arctic ocean during sea-ice melting |
publisher |
Public Library of Science |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908934 http://www.ncbi.nlm.nih.gov/pubmed/24497990 https://doi.org/10.1371/journal.pone.0086887 |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean ice core Sea ice |
genre_facet |
Arctic Arctic Ocean ice core Sea ice |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3908934 http://www.ncbi.nlm.nih.gov/pubmed/24497990 http://dx.doi.org/10.1371/journal.pone.0086887 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0086887 |
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PLoS ONE |
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9 |
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1 |
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e86887 |
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