Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A review
The warming of the Arctic Ocean impacts the dissolved organic matter (DOM) imports into the Arctic region, which affects the local bacterial communities. This review addressed the current status of DOM inputs and their potential influences on bacteria data (e.g., population, production, and metaboli...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-09-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.968583/full |
| _version_ | 1798001755864170496 |
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| author | Hien Thi Nguyen Yung Mi Lee Jong Kuk Hong Seongjin Hong Meilian Chen Jin Hur |
| author_facet | Hien Thi Nguyen Yung Mi Lee Jong Kuk Hong Seongjin Hong Meilian Chen Jin Hur |
| author_sort | Hien Thi Nguyen |
| collection | DOAJ |
| description | The warming of the Arctic Ocean impacts the dissolved organic matter (DOM) imports into the Arctic region, which affects the local bacterial communities. This review addressed the current status of DOM inputs and their potential influences on bacteria data (e.g., population, production, and metabolic activity of bacteria), as well as the projected changes of DOM inputs and bacterial communities as a result of climate warming. Microbial communities are likely affected by the warming climate and the transport of DOM to the Arctic Ocean. Imported DOM can alter Arctic bacterial abundance, cell size, metabolism, and composition. DOM fluxes from Arctic River runoff and adjacent oceans have been enhanced, with warming increasing the contribution of many emerging DOM sources, such as phytoplankton production, melted sea ice, thawed permafrost soil, thawed subsea permafrost, melted glaciers/ice sheets, atmospheric deposition, groundwater discharge, and sediment efflux. Imported DOM contains both allochthonous and autochthonous components; a large quantity of labile DOM comes from emerging sources. As a result, the Arctic sea water DOM composition is transformed to include a wider range of various organic constituents such as carbohydrates (i.e., glucose), proteinaceous compounds (i.e., amino acid and protein-like components) and those with terrigenous origins (i.e., humic-like components). Changes to DOM imports can alter Arctic bacterial abundance, cell size, metabolism, and composition. Under current global warming projections, increased inflow of DOM and more diverse DOM composition would eventually lead to enhanced CO2 emissions and frequent emergence of replacement bacterial communities in the Arctic Ocean. Understanding the changes in DOM fluxes and responses of bacteria in the Arctic broadens our current knowledge of the Arctic Ocean’s responses to global warming. |
| first_indexed | 2024-04-11T11:41:12Z |
| format | Article |
| id | doaj.art-6c89820487c844988fbc665fe6230364 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-11T11:41:12Z |
| publishDate | 2022-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-6c89820487c844988fbc665fe62303642022-12-22T04:25:50ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-09-01910.3389/fmars.2022.968583968583Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A reviewHien Thi Nguyen0Yung Mi Lee1Jong Kuk Hong2Seongjin Hong3Meilian Chen4Jin Hur5Department of Environment and Energy, Sejong University, Seoul, South KoreaKorea Polar Research Institute (KOPRI), Incheon, South KoreaKorea Polar Research Institute (KOPRI), Incheon, South KoreaDepartment of Ocean Environmental Sciences, Chungnam National University, Daejeon, South KoreaEnvironmental Science and Engineering Research Group, Guangdong Technion - Israel Institute of Technology, Shantou, ChinaDepartment of Environment and Energy, Sejong University, Seoul, South KoreaThe warming of the Arctic Ocean impacts the dissolved organic matter (DOM) imports into the Arctic region, which affects the local bacterial communities. This review addressed the current status of DOM inputs and their potential influences on bacteria data (e.g., population, production, and metabolic activity of bacteria), as well as the projected changes of DOM inputs and bacterial communities as a result of climate warming. Microbial communities are likely affected by the warming climate and the transport of DOM to the Arctic Ocean. Imported DOM can alter Arctic bacterial abundance, cell size, metabolism, and composition. DOM fluxes from Arctic River runoff and adjacent oceans have been enhanced, with warming increasing the contribution of many emerging DOM sources, such as phytoplankton production, melted sea ice, thawed permafrost soil, thawed subsea permafrost, melted glaciers/ice sheets, atmospheric deposition, groundwater discharge, and sediment efflux. Imported DOM contains both allochthonous and autochthonous components; a large quantity of labile DOM comes from emerging sources. As a result, the Arctic sea water DOM composition is transformed to include a wider range of various organic constituents such as carbohydrates (i.e., glucose), proteinaceous compounds (i.e., amino acid and protein-like components) and those with terrigenous origins (i.e., humic-like components). Changes to DOM imports can alter Arctic bacterial abundance, cell size, metabolism, and composition. Under current global warming projections, increased inflow of DOM and more diverse DOM composition would eventually lead to enhanced CO2 emissions and frequent emergence of replacement bacterial communities in the Arctic Ocean. Understanding the changes in DOM fluxes and responses of bacteria in the Arctic broadens our current knowledge of the Arctic Ocean’s responses to global warming.https://www.frontiersin.org/articles/10.3389/fmars.2022.968583/fullArctic Oceansea waterdissolved organic matter (DOM)bacterial communitiesclimate warming |
| spellingShingle | Hien Thi Nguyen Yung Mi Lee Jong Kuk Hong Seongjin Hong Meilian Chen Jin Hur Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A review Frontiers in Marine Science Arctic Ocean sea water dissolved organic matter (DOM) bacterial communities climate warming |
| title | Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A review |
| title_full | Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A review |
| title_fullStr | Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A review |
| title_full_unstemmed | Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A review |
| title_short | Climate warming-driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the Arctic Ocean: A review |
| title_sort | climate warming driven changes in the flux of dissolved organic matter and its effects on bacterial communities in the arctic ocean a review |
| topic | Arctic Ocean sea water dissolved organic matter (DOM) bacterial communities climate warming |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.968583/full |
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