Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect.
This study investigated the contents of total mercury (THg), trace metals, and CH4 and determined the signature microbes involved in various biogeochemical processes in the sediment of the Canadian Beaufort Sea. The THg ranged between 32 and 63 μg/kg and the trace metals such as Fe, Al, Mn, and Zn w...
Published in: | Marine Pollution Bulletin |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier Science
2024
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.marpolbul.2024.116300 https://pubmed.ncbi.nlm.nih.gov/38555803 |
id |
ftpubmed:38555803 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:38555803 2024-06-02T08:04:13+00:00 Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect. Chaudhary, Dhiraj Kumar Seo, DongGyun Han, Seunghee Hong, Yongseok 2024 May https://doi.org/10.1016/j.marpolbul.2024.116300 https://pubmed.ncbi.nlm.nih.gov/38555803 eng eng Elsevier Science https://doi.org/10.1016/j.marpolbul.2024.116300 https://pubmed.ncbi.nlm.nih.gov/38555803 Copyright © 2024 Elsevier Ltd. All rights reserved. Mar Pollut Bull ISSN:1879-3363 Volume:202 Biogeochemical cycles Canadian Beaufort Sea Methane gas Microbial communities Total mercury Trace metals Journal Article 2024 ftpubmed https://doi.org/10.1016/j.marpolbul.2024.116300 2024-05-07T16:02:00Z This study investigated the contents of total mercury (THg), trace metals, and CH4 and determined the signature microbes involved in various biogeochemical processes in the sediment of the Canadian Beaufort Sea. The THg ranged between 32 and 63 μg/kg and the trace metals such as Fe, Al, Mn, and Zn were significant in distributions. The pH, SO42-, Fe2+, and redox proxy metals were crucial factors in the spatial and vertical heterogeneity of geochemical distributions. CH4 was detected only at the mud volcano site. Microbial analyses identified Clostridium, Desulfosporosinus, Desulfofustis, and Desulftiglans as the predominant Hg methylators and sulfate reducers; Nitrosopumilus and Hyphomicrobium as the major nitrifiers and denitrifiers; Methanosarcina and Methanosaeta as keystone methanogens; and Methyloceanibacter and Methyloprofundus as signature methanotrophs. Altogether, this study expands the current understanding of the microbiological and geochemical features and could be helpful in predicting ecosystem functions in the Canadian Beaufort Sea. Article in Journal/Newspaper Beaufort Sea PubMed Central (PMC) Marine Pollution Bulletin 202 116300 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Biogeochemical cycles Canadian Beaufort Sea Methane gas Microbial communities Total mercury Trace metals |
spellingShingle |
Biogeochemical cycles Canadian Beaufort Sea Methane gas Microbial communities Total mercury Trace metals Chaudhary, Dhiraj Kumar Seo, DongGyun Han, Seunghee Hong, Yongseok Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect. |
topic_facet |
Biogeochemical cycles Canadian Beaufort Sea Methane gas Microbial communities Total mercury Trace metals |
description |
This study investigated the contents of total mercury (THg), trace metals, and CH4 and determined the signature microbes involved in various biogeochemical processes in the sediment of the Canadian Beaufort Sea. The THg ranged between 32 and 63 μg/kg and the trace metals such as Fe, Al, Mn, and Zn were significant in distributions. The pH, SO42-, Fe2+, and redox proxy metals were crucial factors in the spatial and vertical heterogeneity of geochemical distributions. CH4 was detected only at the mud volcano site. Microbial analyses identified Clostridium, Desulfosporosinus, Desulfofustis, and Desulftiglans as the predominant Hg methylators and sulfate reducers; Nitrosopumilus and Hyphomicrobium as the major nitrifiers and denitrifiers; Methanosarcina and Methanosaeta as keystone methanogens; and Methyloceanibacter and Methyloprofundus as signature methanotrophs. Altogether, this study expands the current understanding of the microbiological and geochemical features and could be helpful in predicting ecosystem functions in the Canadian Beaufort Sea. |
format |
Article in Journal/Newspaper |
author |
Chaudhary, Dhiraj Kumar Seo, DongGyun Han, Seunghee Hong, Yongseok |
author_facet |
Chaudhary, Dhiraj Kumar Seo, DongGyun Han, Seunghee Hong, Yongseok |
author_sort |
Chaudhary, Dhiraj Kumar |
title |
Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect. |
title_short |
Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect. |
title_full |
Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect. |
title_fullStr |
Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect. |
title_full_unstemmed |
Distribution of mercury in modern bottom sediments of the Beaufort Sea in relation to the processes of early diagenesis: Microbiological aspect. |
title_sort |
distribution of mercury in modern bottom sediments of the beaufort sea in relation to the processes of early diagenesis: microbiological aspect. |
publisher |
Elsevier Science |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.marpolbul.2024.116300 https://pubmed.ncbi.nlm.nih.gov/38555803 |
genre |
Beaufort Sea |
genre_facet |
Beaufort Sea |
op_source |
Mar Pollut Bull ISSN:1879-3363 Volume:202 |
op_relation |
https://doi.org/10.1016/j.marpolbul.2024.116300 https://pubmed.ncbi.nlm.nih.gov/38555803 |
op_rights |
Copyright © 2024 Elsevier Ltd. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.marpolbul.2024.116300 |
container_title |
Marine Pollution Bulletin |
container_volume |
202 |
container_start_page |
116300 |
_version_ |
1800748852313063424 |