Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget
Abstract Dinitrogen (N 2 ) fixation is the source of all biologically available nitrogen on earth, and its presence or absence impacts net primary production and global biogeochemical cycles. Here, we report rates of 3.5–17.2 nmol N L −1 d −1 in the ice‐free coastal Alaskan Arctic to show that N 2 f...
Published in: | Limnology and Oceanography Letters |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/lol2.10046 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flol2.10046 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10046 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lol2.10046 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Flol2.10046 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10046 |
id |
crwiley:10.1002/lol2.10046 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/lol2.10046 2024-06-23T07:49:05+00:00 Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget Sipler, Rachel E. Gong, Donglai Baer, Steven E. Sanderson, Marta P. Roberts, Quinn N. Mulholland, Margaret R. Bronk, Deborah A. NSF College of William and Mary 2017 http://dx.doi.org/10.1002/lol2.10046 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flol2.10046 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10046 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lol2.10046 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Flol2.10046 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10046 en eng Wiley http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ Limnology and Oceanography Letters volume 2, issue 5, page 159-166 ISSN 2378-2242 2378-2242 journal-article 2017 crwiley https://doi.org/10.1002/lol2.10046 2024-06-13T04:23:28Z Abstract Dinitrogen (N 2 ) fixation is the source of all biologically available nitrogen on earth, and its presence or absence impacts net primary production and global biogeochemical cycles. Here, we report rates of 3.5–17.2 nmol N L −1 d −1 in the ice‐free coastal Alaskan Arctic to show that N 2 fixation in the Arctic Ocean may be an important source of nitrogen to a seasonally nitrogen‐limited system. If widespread in surface waters over ice‐free shelves throughout the Arctic, N 2 fixation could contribute up to 3.5 Tg N yr −1 to the Arctic nitrogen budget. At these rates, N 2 fixation occurring in ice‐free summer waters would offset up to 27.1% of the Arctic denitrification deficit and contribute an additional 2.7% to N 2 fixation globally, making it an important consideration in the current debate of whether nitrogen in the global ocean is in steady state. Additional investigations of high‐latitude marine diazotrophic physiology are required to refine these N 2 fixation estimates. Article in Journal/Newspaper Arctic Arctic Ocean Wiley Online Library Arctic Arctic Ocean Limnology and Oceanography Letters 2 5 159 166 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Dinitrogen (N 2 ) fixation is the source of all biologically available nitrogen on earth, and its presence or absence impacts net primary production and global biogeochemical cycles. Here, we report rates of 3.5–17.2 nmol N L −1 d −1 in the ice‐free coastal Alaskan Arctic to show that N 2 fixation in the Arctic Ocean may be an important source of nitrogen to a seasonally nitrogen‐limited system. If widespread in surface waters over ice‐free shelves throughout the Arctic, N 2 fixation could contribute up to 3.5 Tg N yr −1 to the Arctic nitrogen budget. At these rates, N 2 fixation occurring in ice‐free summer waters would offset up to 27.1% of the Arctic denitrification deficit and contribute an additional 2.7% to N 2 fixation globally, making it an important consideration in the current debate of whether nitrogen in the global ocean is in steady state. Additional investigations of high‐latitude marine diazotrophic physiology are required to refine these N 2 fixation estimates. |
author2 |
NSF College of William and Mary |
format |
Article in Journal/Newspaper |
author |
Sipler, Rachel E. Gong, Donglai Baer, Steven E. Sanderson, Marta P. Roberts, Quinn N. Mulholland, Margaret R. Bronk, Deborah A. |
spellingShingle |
Sipler, Rachel E. Gong, Donglai Baer, Steven E. Sanderson, Marta P. Roberts, Quinn N. Mulholland, Margaret R. Bronk, Deborah A. Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget |
author_facet |
Sipler, Rachel E. Gong, Donglai Baer, Steven E. Sanderson, Marta P. Roberts, Quinn N. Mulholland, Margaret R. Bronk, Deborah A. |
author_sort |
Sipler, Rachel E. |
title |
Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget |
title_short |
Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget |
title_full |
Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget |
title_fullStr |
Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget |
title_full_unstemmed |
Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget |
title_sort |
preliminary estimates of the contribution of arctic nitrogen fixation to the global nitrogen budget |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/lol2.10046 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flol2.10046 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10046 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lol2.10046 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Flol2.10046 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10046 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Limnology and Oceanography Letters volume 2, issue 5, page 159-166 ISSN 2378-2242 2378-2242 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/lol2.10046 |
container_title |
Limnology and Oceanography Letters |
container_volume |
2 |
container_issue |
5 |
container_start_page |
159 |
op_container_end_page |
166 |
_version_ |
1802639358786797568 |