Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins
Rapid environmental changes in the Arctic Ocean affect plankton productivity and the bioavailability of dissolved organic matter (DOM) that supports microbial food webs. We report concentrations of dissolved organic carbon (DOC) and yields of amino acids (indicators of labile DOM) in surface waters...
Published in: | Geophysical Research Letters |
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Language: | English |
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American Geophysical Union
2018
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Online Access: | https://hdl.handle.net/2144/34358 https://doi.org/10.1002/2017gl076647 |
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ftbostonuniv:oai:open.bu.edu:2144/34358 2024-01-14T10:03:11+01:00 Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins Shen, Yuan Benner, Ronald Kaiser, Karl Fichot, Cédric Whitledge, Terry 2018-02-02 1490 - 1498 https://hdl.handle.net/2144/34358 https://doi.org/10.1002/2017gl076647 en_US eng American Geophysical Union Geophysical Research Letters Yuan Shen, Ronald Benner, Karl Kaiser, Cedric Fichot, Terry Whitledge. "Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins." Geophysical Research Letters, Volume 45, Issue 3, pp. 1490 - 1498. https://doi.org/10.1002/2017gl076647 0094-8276 https://hdl.handle.net/2144/34358 doi:10.1002/2017gl076647 0000-0002-1099-5764 (Fichot, Cedric) Science & technology Physical sciences Geosciences multidisciplinary Geology Dissolved organic matter Bioavailability Labile DOM Hot spots Ecosystem productivity Arctic ocean Biological hot-spots Biochemical-composition Beaufort sea Fresh-water Lena river Laptev sea Shelves Carbon Atlantic oceans Meteorology & atmospheric sciences Article 2018 ftbostonuniv https://doi.org/10.1002/2017gl076647 2023-12-16T23:19:04Z Rapid environmental changes in the Arctic Ocean affect plankton productivity and the bioavailability of dissolved organic matter (DOM) that supports microbial food webs. We report concentrations of dissolved organic carbon (DOC) and yields of amino acids (indicators of labile DOM) in surface waters across major Arctic margins. Concentrations of DOC and bioavailability of DOM showed large pan-Arctic variability that corresponded to varying hydrological conditions and ecosystem productivity, respectively. Widespread hot spots of labile DOM were observed over productive inflow shelves (Chukchi and Barents Seas), in contrast to oligotrophic interior margins (Kara, Laptev, East Siberian, and Beaufort Seas). Amino acid yields in outflow gateways (Canadian Archipelago and Baffin Bay) indicated the prevalence of semilabile DOM in sea ice covered regions and sporadic production of labile DOM in ice-free waters. Comparing these observations with surface circulation patterns indicated varying shelf subsidies of bioavailable DOM to Arctic deep basins. Published version 2019-07-31 Article in Journal/Newspaper Arctic Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Beaufort Sea Canadian Archipelago Chukchi Kara-Laptev laptev Laptev Sea lena river Sea ice Boston University: OpenBU Arctic Arctic Ocean Laptev Sea Baffin Bay Geophysical Research Letters 45 3 1490 1498 |
institution |
Open Polar |
collection |
Boston University: OpenBU |
op_collection_id |
ftbostonuniv |
language |
English |
topic |
Science & technology Physical sciences Geosciences multidisciplinary Geology Dissolved organic matter Bioavailability Labile DOM Hot spots Ecosystem productivity Arctic ocean Biological hot-spots Biochemical-composition Beaufort sea Fresh-water Lena river Laptev sea Shelves Carbon Atlantic oceans Meteorology & atmospheric sciences |
spellingShingle |
Science & technology Physical sciences Geosciences multidisciplinary Geology Dissolved organic matter Bioavailability Labile DOM Hot spots Ecosystem productivity Arctic ocean Biological hot-spots Biochemical-composition Beaufort sea Fresh-water Lena river Laptev sea Shelves Carbon Atlantic oceans Meteorology & atmospheric sciences Shen, Yuan Benner, Ronald Kaiser, Karl Fichot, Cédric Whitledge, Terry Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins |
topic_facet |
Science & technology Physical sciences Geosciences multidisciplinary Geology Dissolved organic matter Bioavailability Labile DOM Hot spots Ecosystem productivity Arctic ocean Biological hot-spots Biochemical-composition Beaufort sea Fresh-water Lena river Laptev sea Shelves Carbon Atlantic oceans Meteorology & atmospheric sciences |
description |
Rapid environmental changes in the Arctic Ocean affect plankton productivity and the bioavailability of dissolved organic matter (DOM) that supports microbial food webs. We report concentrations of dissolved organic carbon (DOC) and yields of amino acids (indicators of labile DOM) in surface waters across major Arctic margins. Concentrations of DOC and bioavailability of DOM showed large pan-Arctic variability that corresponded to varying hydrological conditions and ecosystem productivity, respectively. Widespread hot spots of labile DOM were observed over productive inflow shelves (Chukchi and Barents Seas), in contrast to oligotrophic interior margins (Kara, Laptev, East Siberian, and Beaufort Seas). Amino acid yields in outflow gateways (Canadian Archipelago and Baffin Bay) indicated the prevalence of semilabile DOM in sea ice covered regions and sporadic production of labile DOM in ice-free waters. Comparing these observations with surface circulation patterns indicated varying shelf subsidies of bioavailable DOM to Arctic deep basins. Published version 2019-07-31 |
format |
Article in Journal/Newspaper |
author |
Shen, Yuan Benner, Ronald Kaiser, Karl Fichot, Cédric Whitledge, Terry |
author_facet |
Shen, Yuan Benner, Ronald Kaiser, Karl Fichot, Cédric Whitledge, Terry |
author_sort |
Shen, Yuan |
title |
Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins |
title_short |
Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins |
title_full |
Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins |
title_fullStr |
Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins |
title_full_unstemmed |
Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins |
title_sort |
pan-arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
https://hdl.handle.net/2144/34358 https://doi.org/10.1002/2017gl076647 |
geographic |
Arctic Arctic Ocean Laptev Sea Baffin Bay |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Baffin Bay |
genre |
Arctic Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Beaufort Sea Canadian Archipelago Chukchi Kara-Laptev laptev Laptev Sea lena river Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Beaufort Sea Canadian Archipelago Chukchi Kara-Laptev laptev Laptev Sea lena river Sea ice |
op_relation |
Geophysical Research Letters Yuan Shen, Ronald Benner, Karl Kaiser, Cedric Fichot, Terry Whitledge. "Pan-Arctic distribution of bioavailable dissolved organic matter and linkages with productivity in ocean margins." Geophysical Research Letters, Volume 45, Issue 3, pp. 1490 - 1498. https://doi.org/10.1002/2017gl076647 0094-8276 https://hdl.handle.net/2144/34358 doi:10.1002/2017gl076647 0000-0002-1099-5764 (Fichot, Cedric) |
op_doi |
https://doi.org/10.1002/2017gl076647 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
3 |
container_start_page |
1490 |
op_container_end_page |
1498 |
_version_ |
1788058117411438592 |