The processing and impact of dissolved riverine nitrogen in the Arctic Ocean
© The Author(s), 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Estuaries and Coasts 35 (2012): 401-415, doi:10.1007/s12237-011-9417-3. Although the Arctic Ocean is the most riverine-influenced of all of the worl...
Published in: | Estuaries and Coasts |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer
2011
|
Subjects: | |
Online Access: | https://hdl.handle.net/1912/5109 |
id |
ftwhoas:oai:darchive.mblwhoilibrary.org:1912/5109 |
---|---|
record_format |
openpolar |
spelling |
ftwhoas:oai:darchive.mblwhoilibrary.org:1912/5109 2023-05-15T14:41:25+02:00 The processing and impact of dissolved riverine nitrogen in the Arctic Ocean Tank, Suzanne E. Manizza, Manfredi Holmes, Robert M. McClelland, James W. Peterson, Bruce J. 2011-06-11 application/pdf https://hdl.handle.net/1912/5109 en_US eng Springer https://doi.org/10.1007/s12237-011-9417-3 Estuaries and Coasts 35 (2012): 401-415 https://hdl.handle.net/1912/5109 doi:10.1007/s12237-011-9417-3 Attribution-NonCommercial 3.0 Unported http://creativecommons.org/licenses/by-nc/3.0/ CC-BY-NC Estuaries and Coasts 35 (2012): 401-415 doi:10.1007/s12237-011-9417-3 Arctic Ocean Primary Production Land–ocean coupling Estuarine processes Riverine nutrients Dissolved organic matter Photodegradation Article 2011 ftwhoas https://doi.org/10.1007/s12237-011-9417-3 2022-05-28T22:58:34Z © The Author(s), 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Estuaries and Coasts 35 (2012): 401-415, doi:10.1007/s12237-011-9417-3. Although the Arctic Ocean is the most riverine-influenced of all of the world’s oceans, the importance of terrigenous nutrients in this environment is poorly understood. This study couples estimates of circumpolar riverine nutrient fluxes from the PARTNERS (Pan-Arctic River Transport of Nutrients, Organic Matter, and Suspended Sediments) Project with a regionally configured version of the MIT general circulation model to develop estimates of the distribution and availability of dissolved riverine N in the Arctic Ocean, assess its importance for primary production, and compare these estimates to potential bacterial production fueled by riverine C. Because riverine dissolved organic nitrogen is remineralized slowly, riverine N is available for uptake well into the open ocean. Despite this, we estimate that even when recycling is considered, riverine N may support 0.5–1.5 Tmol C year−1 of primary production, a small proportion of total Arctic Ocean photosynthesis. Rapid uptake of dissolved inorganic nitrogen coupled with relatively high rates of dissolved organic nitrogen regeneration in N-limited nearshore regions, however, leads to potential localized rates of riverine-supported photosynthesis that represent a substantial proportion of nearshore production. Funding for this work was provided through NSFOPP- 0229302 and NSF-OPP-0732985.Support to SET was additionally provided by an NSERC Postdoctoral Fellowship. Article in Journal/Newspaper Arctic Arctic Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Arctic Ocean Estuaries and Coasts 35 2 401 415 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Arctic Ocean Primary Production Land–ocean coupling Estuarine processes Riverine nutrients Dissolved organic matter Photodegradation |
spellingShingle |
Arctic Ocean Primary Production Land–ocean coupling Estuarine processes Riverine nutrients Dissolved organic matter Photodegradation Tank, Suzanne E. Manizza, Manfredi Holmes, Robert M. McClelland, James W. Peterson, Bruce J. The processing and impact of dissolved riverine nitrogen in the Arctic Ocean |
topic_facet |
Arctic Ocean Primary Production Land–ocean coupling Estuarine processes Riverine nutrients Dissolved organic matter Photodegradation |
description |
© The Author(s), 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Estuaries and Coasts 35 (2012): 401-415, doi:10.1007/s12237-011-9417-3. Although the Arctic Ocean is the most riverine-influenced of all of the world’s oceans, the importance of terrigenous nutrients in this environment is poorly understood. This study couples estimates of circumpolar riverine nutrient fluxes from the PARTNERS (Pan-Arctic River Transport of Nutrients, Organic Matter, and Suspended Sediments) Project with a regionally configured version of the MIT general circulation model to develop estimates of the distribution and availability of dissolved riverine N in the Arctic Ocean, assess its importance for primary production, and compare these estimates to potential bacterial production fueled by riverine C. Because riverine dissolved organic nitrogen is remineralized slowly, riverine N is available for uptake well into the open ocean. Despite this, we estimate that even when recycling is considered, riverine N may support 0.5–1.5 Tmol C year−1 of primary production, a small proportion of total Arctic Ocean photosynthesis. Rapid uptake of dissolved inorganic nitrogen coupled with relatively high rates of dissolved organic nitrogen regeneration in N-limited nearshore regions, however, leads to potential localized rates of riverine-supported photosynthesis that represent a substantial proportion of nearshore production. Funding for this work was provided through NSFOPP- 0229302 and NSF-OPP-0732985.Support to SET was additionally provided by an NSERC Postdoctoral Fellowship. |
format |
Article in Journal/Newspaper |
author |
Tank, Suzanne E. Manizza, Manfredi Holmes, Robert M. McClelland, James W. Peterson, Bruce J. |
author_facet |
Tank, Suzanne E. Manizza, Manfredi Holmes, Robert M. McClelland, James W. Peterson, Bruce J. |
author_sort |
Tank, Suzanne E. |
title |
The processing and impact of dissolved riverine nitrogen in the Arctic Ocean |
title_short |
The processing and impact of dissolved riverine nitrogen in the Arctic Ocean |
title_full |
The processing and impact of dissolved riverine nitrogen in the Arctic Ocean |
title_fullStr |
The processing and impact of dissolved riverine nitrogen in the Arctic Ocean |
title_full_unstemmed |
The processing and impact of dissolved riverine nitrogen in the Arctic Ocean |
title_sort |
processing and impact of dissolved riverine nitrogen in the arctic ocean |
publisher |
Springer |
publishDate |
2011 |
url |
https://hdl.handle.net/1912/5109 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Estuaries and Coasts 35 (2012): 401-415 doi:10.1007/s12237-011-9417-3 |
op_relation |
https://doi.org/10.1007/s12237-011-9417-3 Estuaries and Coasts 35 (2012): 401-415 https://hdl.handle.net/1912/5109 doi:10.1007/s12237-011-9417-3 |
op_rights |
Attribution-NonCommercial 3.0 Unported http://creativecommons.org/licenses/by-nc/3.0/ |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1007/s12237-011-9417-3 |
container_title |
Estuaries and Coasts |
container_volume |
35 |
container_issue |
2 |
container_start_page |
401 |
op_container_end_page |
415 |
_version_ |
1766313199339044864 |